CERABIEN MiLai MICRO LAYERING KIT (160 g) Tx (10 g)ELT1 (10 g)LTx (10 g)LT1 (10 g)LT Super Gray (10 g)LT Royal Blue (10 g)Aqua Blue 2 (10 g)Creamy Enamel (10 g)E2 (10 g)CCV-2 (10 g)Tissue 1 (10 g)Tissue 4 (10 g)Tissue 5 (10 g)Tissue 6 (10 g)Value Liner 1 (10 g)Value Liner 2 (10 g) - + Add to Cart
CERABIEN MiLai INTERNAL STAIN KIT (45 g) White (3 g)Gray (3 g)Incisal Blue 1 (3 g)Incisal Blue 2 (3 g)Blue (3 g)Yellow (3 g)Mamelon Orange 2 (3 g)Cervical 2 (3 g)Salmon Pink (3 g)Tissue Pink (3 g)Tissue Red (3 g)A+ (3 g)B+ (3 g)Fluoro (3 g)Bright (3 g)Internal Stain LIQUID (10 ml)COLOUR GUIDE - + Add to Cart
CERABIEN MiLai ADVANCED LAYERING KIT (200 g) OBXW (10 g)OBA1 (10 g)OBA3 (10 g)OBB1 (10 g)XWB (10 g)A1B (10 g)A3B (10 g)B1B (10 g)B3B (10 g)C2B (10 g)D2B (10 g)E1 (10 g)SILKY E2 (10 g)CCV-1 (10 g)CCV-3 (10 g)Fluoro Mamelon 1 (10 g)Fluoro Mamelon 2 (10 g)LT0 (10 g)ELT2 (10 g)LT CORAL (10 g) - + Add to Cart
CERABIEN MiLai POWDER STARTER KIT (85 g) CCV-2 (10 g)Value Liner 2 (10 g)E2 (10 g)LT0 (10 g)LT1 (10 g)Aqua Blue 2 (10 g)Creamy Enamel (10 g)IS Incisal Blue 1 (3 g)IS Mamelon Orange 2 (3 g)IS Cervical 2 (3 g)IS A+ (3 g)IS Bright (3 g) - + Add to Cart
Partial veneering on zirconia: minimal layers, maximum aesthetics Case by DT Ghaith Alousi MATERIALS USED KATANA Zirconia YML ZIRCONIA BLANK High-esthetic multilayer zirconia blank with a natural colour gradient from cervical to incisal. Combines high flexural strength with excellent translucency. Ideal for partial veneering. CERABIEN MiLai VENEERING CERAMIC New-generation veneering ceramic specifically developed for zirconia and lithium disilicate restorations. Excellent adhesion to zirconia, natural light optics, wide range of masses for detailed layering techniques. CERABIEN MiLai Internal Stains STAIN COLORS Incisal Blue 1, Mamelon Orange 2, A+, Tissue Pink, Salmon Pink, White – all mixed with Bright for optimal consistency and application precision. CERABIEN MiLai Masses CERAMIC MASSES Tx, Creamy Enamel, LTx, CCV-2, ELT1 for teeth. Tissue 1, 4, 6 for the gingiva. INTRODUCTION The technique represents a modern, efficient approach to dental laboratory aesthetics: rather than voluminous ceramic build-ups, minimal yet precisely applied layers are used, which in combination with the intrinsic aesthetic of the zirconia framework achieve an extraordinary result. In this case report, dental technician Ghaith Alousi documents step-by-step the fabrication of a facially layered maxillary anterior zirconia restoration based on KATANA™ Zirconia YML and the novel veneering ceramic CERABIEN™ MiLai. The key feature: the palatal surface remains monolithic zirconia, while only the vestibular surface is veneered with CERABIEN MiLai. This combines the stability of zirconia with the incomparable aesthetics of a hand-layered porcelain. STEP 1: ZIRCONIA FRAMEWORK BEFORE SINTERING CAD/CAM Milling · KATANA Zirconia YML · Green State The framework was deliberately designed for partial labial veneering: the vestibular surface provides sufficient space for the CERABIEN MiLai ceramic. While the palatal surfaces are entirely monolithic, the occlusal contact points remain on the mechanically superior zirconia. Fig. 1. Framework before sintering. Framework after milling. MATERIAL: KATANA Zirconia YML STEP 2: AFTER SINTERING Sintering · Multi-Layer Aesthetics · Sandblasting Following the sintering cycle at 1550 °C, the KATANA Zirconia YML framework reveals its full multi-layered character. The impressive colour gradient – from a warm, yellowish-cream tone cervically to the cool, translucent incisal edge – is the direct result of the pigment layering integrated into the blank. The framework was cleaned directly after sintering using sandblasting only (110 μm, 1.5 bar), with no further processing. Fig. 2. Sintered framework vestibular view – multi-layered colour gradient after sintering. Fig. 3. Sintered framework - palatal view – monolithic zirconia structure. PROCESSING: Sintering (1550 °C) Sandblasting STEP 3: FIRST STAIN LAYER CERABIEN MiLai Internal Stains · Colour Foundation · Internal Characterisation Prior to ceramic layering, a differentiated stain layer is applied directly to the sintered zirconia framework. This layer serves as the colour foundation and internal characterisation – defining depth effect and individuality. Colour distribution by zone: Incisal: Incisal Blue 1 + Bright 20 % – to simulate the natural opalescence effect.Mid incisor area: Mamelon Orange 2 + Bright 20 % – to replicate the characteristic mamelon structure.Cervical area & interproximal: A+ + Bright 20 % – for increased chroma and saturation in the cervical third.Gingival area: Tissue Pink + Salmon Pink – for natural tissue toning. Fig. 4. CERABIEN MiLai Internal Stains applied – unfired state. CERABIEN MiLai INTERNAL STAINS: Incisal Blue 1 + Bright 20 % (incisal area) Mamelon Orange 2 + Bright 20 % (mamelons) A+ + Bright 20 % (cervical & interproximal areas) Tissue Pink (gingiva) Salmon Pink (gingiva) STEP 4: FIRST CERAMIC LAYER & WASH BAKE Tx + Tissue 1 · Bonding Fire · Bond Optimisation After firing the stains, the first ceramic layer is applied using CERABIEN MiLai Tx for the tooth areas and Tissue 1 for the gingiva. The goal is to establish an optimal bond between ceramic and zirconia. A deliberate wash bake is performed: the firing temperature is raised above the normal reference value so that the ceramic mass flows more readily and bonds optimally to the zirconia surface. A liner or wash fire is intentionally omitted. Fig. 5. First ceramic layer – unfired, frontal view. Fig. 6. Frontal view – raw first layer. CERABIEN MiLai MASSES: Tx (Translucent) – tooth portions Tissue 1 – gingival area Firing mode: wash bake (elevated temperature) STEP 5: AFTER WASH BAKE Bond Verification · Preparation for Second Stain Layer The result after the wash bake shows a first ceramic layer fused to the zirconia. The surface appears smooth and uniformly glossy. The Tx layer enhances the intrinsic translucency of KATANA Zirconia YML and allows the multi-layer colour gradient to shine through harmoniously. Fig. 7. After wash bake – Tx and Tissue 1 perfectly fused to zirconia. STEP 6: SECOND STAIN LAYER – DETAIL CHARACTERISATION Natural Cracks · White · Surface Individualization In the second stain layer, the focus is on maximum precision and detail. CERABIEN MiLai internal stain White is used to apply fine, naturally appearing crack lines (Natural Cracks) to the tooth surface. These subtle whitish crack lines develop in natural teeth through enamel stresses and impart to them their unmistakable, vital character. They run anatomically correctly in a vertical direction, varying in intensity and length – exactly as found in nature. Fig. 8. Close-up – fine crack lines with white stain. Fig. 9. Second stain overview – harmonious detail distribution. CERABIEN MiLai INTERNAL STAIN: White – Natural Cracks / craquelé lines STEP 7: SECOND CERAMIC LAYER – MAIN BUILD-UP Morphology · Enamel Masses · Gingival Design The second ceramic layer requires the highest concentration on colour, morphology, and surface texture simultaneously. This is the main build-up, during which the final form of the restoration is established. Tooth masses – zonal strategy: Creamy Enamel establishes the warm body tone. LTx (Luster Translucent) imparts opalescent vitality. CCV-2 (Clear Cervical 2) provides transparent chroma cervically. ELT1 (Enamel Luster 1) completes the incisal zone with a delicate enamel gloss. Gingival masses: Tissue 1, 4, and 6 create a differentiated tissue appearance with light, mid, and deep tones. Fig. 10. Main build-up – Unfired state. CERABIEN MiLai MASSES – TEETH: Creamy Enamel – body zone LTx (Luster Translucent) – opalescent vitality CCV-2 (Clear Cervical 2) – cervical chroma ELT1 (Enamel Luster 1) – incisal enamel gloss Fig. 11. Main build-up – Close-up – surface texture. Fig. 12. Main build-up – Close-up – surface texture. CERABIEN MiLai MASSES – GINGIVA: Tissue 1 – light, delicate tissue areas Tissue 4 – mid gingival tone Tissue 6 – depth, shadow, interdental papillae STEP 8: SECOND CERAMIC FIRING Not Yet Finished · As-Fired State The result after the second ceramic firing is already convincing in its raw form. The fired mamelon structures, the fine crack lines, and the differentiated gingival design are clearly visible. The final surface texture and form will be refined in the next step through mechanical finishing. Fig. 13. After second firing – not yet finished. STEP 9: MECHANICAL FINISHING Morphology Refinement · Before Self-Glaze Firing Mechanical finishing requires artisanal expertise and a trained aesthetic eye. Diamond burs are used to bring form, proportions, and surface texture to their final level. Special attention is given to surface texture: perikymata, vertical lobule structures, and the cervicogingival transition are individually incorporated. The palatal side remains completely untouched. Fig. 14. After finishing. Fig. 15. Finishing, perikymata and surface texture. STEP 10: FINAL RESULT Self-Glaze Firing & Mechanical Polishing The self-glaze firing differs fundamentally from a conventional glaze firing: no glaze material is applied. The restoration is heated to just below the softening temperature of the ceramic – the surface begins to flow on its own, creating an extremely natural, vital gloss that fully preserves the incorporated texture. Fig. 16 & 17. Final result. An applied glaze mass would partially level the fine perikymata and crack lines. The self-glaze firing instead preserves exactly that individuality so precisely incorporated during finishing. The final mechanical polishing completes the high gloss and accentuates the translucency of the tissue. Fig. 18. Cervicogingival transition. Fig. 19. Final result – close-up. FINISHING STEPS: Self-glaze firing (no applied glaze mass) Mechanical polishing of ceramic surfaces CONCLUSION KATANA Zirconia YML and CERABIEN MiLai from Kuraray Noritake Dental Inc. open new dimensions in aesthetic dental technology. The combination of an intrinsically highly aesthetic multi-layer zirconia blank with CERABIEN MiLai, a veneering ceramic system designed for micro-layering on zirconia as well as lithium disilicate restorations, enables highly natural aesthetic outcomes with minimal material usage. The conscious omission of a liner firing, the targeted use of wash bake for optimal bonding, and the decision to make use of self-glaze firing instead of conventional glazing all express a thoughtful, material-oriented philosophy. The documented steps make clear that esthetic excellence is not the result of complexity. It is the result of precision, material understanding, and an unerring eye for detail. The backlight photograph makes it strikingly visible: light flows through the restoration as through a natural tooth – proof of the harmonious interplay of KATANA Zirconia YML and CERABIEN MiLai. UNCOMPROMISED.UNMATCHED.YOURS. Visit the product page for more details. Sep 16, 2026
Bio-inspired white and pink aesthetics using a micro-layering approach Case by DT Roberto Rossi BIO-INSPIRED White and pink aesthetic rehabilitations require a workflow that combines accurate framework design with controlled ceramic layering. When each step is carefully planned, the optical properties of the framework material can be fully exploited, reducing the need for extensive ceramic layering. The following case illustrates this workflow using a bio-inspired approach. In this case, a micro-layering technique was used to reproduce the vestibular aesthetics while preserving the morphology of the zirconia framework. KATANA™ Zirconia YML was combined with the low-firing ceramic CERABIEN™ MiLai (both Kuraray Noritake Dental Inc.), making this combination well suited to this type of restoration. FRAMEWORK DESIGN To enhance the bio-design effect, in which the framework morphology reproduces the natural distribution of dentin and enamel, an accurate milling strategy is essential. The planned framework morphology should be reproduced faithfully, without losing detail in the proximal areas or at the transition between the white and pink aesthetics (Fig. 1). The optical properties of the milled framework (Fig. 2) and the accuracy of the milled surface (Fig. 3) provide the basis for a predictable aesthetic result. Fig. 1. Milled restoration within the disc. Fig. 2. Milled zirconia framework reproducing the cut-back design. Fig. 3. Detailed view of the accurately milled framework surface. Once the framework has been correctly sintered, the optical properties of the multilayer zirconia and the effect of the cubic zirconia phase can be fully appreciated. Before sintering, however, particular attention should be paid to the framework surface. Any adjustments should preserve, or even improve, the original morphology created during the CAD design stage. The framework should exhibit a smooth, dense surface, free from roughness and porosity, providing the ideal basis for the subsequent characterisation procedures (Fig. 4). Fig. 4. Framework surface after sintering, surface texturing and finishing. The shade of the KATANA Zirconia YML disc should generally be selected one shade lighter than the desired final shade. This helps to avoid excessive chroma and a low-value appearance in areas where the zirconia is thicker, while maintaining flexibility during the subsequent characterisation and layering procedures (Fig. 5). Fig. 5. Sintered framework on the model. Thanks to the varying light transmission through the different thicknesses of the bio-designed incisal area, the dentinal effect becomes clearly visible after sintering (Fig. 6). Rather than masking these optical properties, the following steps are designed to enhance them through internal characterisation and selective micro-layering. Fig. 6. Varying light transmission of the framework. INTERNAL STAINING The first stage of framework individualisation is carried out using the Internal Live Stain (ILS) technique (Chroma map 1). At this stage, the zirconia framework is considered the dentinal core of the restoration. The technique is simple to apply, provides an immediate visual effect and is particularly suitable for mirror-image tooth groups as well as white and pink aesthetic rehabilitations (Figs. 7 and 8). Chroma map 1. Initial internal staining planned. Fig. 7. Dots of internal stains applied to visualize the planned ILS procedure. Fig. 8. Planned distribution of the internal stains. The initial application aims to increase the chroma of the zirconia, while maintaining a high value in the incisal third. The high value of KATANA Zirconia YML helps preserve the overall brightness of the restoration after subsequent micro-layering with CERABIEN MiLai. The Globule Painting technique used consists of three stages: application, shading and inspection. It also offers a modular approach, allowing additional applications whenever a higher level of individualisation is required. At this stage, only the deeper optical effects should be reproduced with internal stains. Incisal Blue 2 is used to create opalescence, A+ to increase chroma, and Salmon Pink together with Tissue Red to characterise the gingival tissues (Figs. 9a to c). The internal effects are then assessed before firing. After firing, the colours retain their appearance (Fig. 10), allowing the technician to proceed directly to the micro-layering stage. Fig. 9a. Incisal Blue 2 applied to the incisal area.Fig. 9b. A+ applied to increase chroma.Fig. 9c. Salmon Pink and Tissue Red applied to characterise the gingival tissues. Fig. 10. Framework after firing following the initial internal staining. Chroma map 2. Comparison of the planned and completed internal staining. MICRO-LAYERING After internal staining, the restoration is ready for micro-layering with CERABIEN MiLai. Depending on the effects to be reproduced and the space provided by the CAD design, translucent, opalescent and lustre porcelains can be used to reproduce the enamel layer. Opaque dentin porcelains, used individually or in combination, can be applied in the cervical and middle thirds or to create a more opaque mamelon effect. The build-up follows a defined sequence (Layering map 1). CCV2 is applied to maintain translucency while increasing chroma (Fig. 11). LT1 is serves as the main lustre porcelain in the middle third (Fig. 12), while E2 is used as a transition dentin in the incisal area and provides the basis for the subsequent effects (Fig. 13). Layering map 1. Overview of the planned micro-layering procedure. Fig. 11. CCV2 applied to maintain translucency while increasing chroma in the cervical area. Fig. 12. LT1 applied as the principal lustre porcelain in the middle third. Fig. 13. E2 applied as transition dentin in the incisal area. To enhance opalescence while maintaining translucency, Aqua Blue 2 is applied to the incisal area (Fig. 14). Value Liner 1 is then applied within the E2 layer, while Aqua Blue 2 is placed over the incisal edge to increase the contrast of the mamelons (Fig. 15). Fig. 14. Aqua Blue 2 applied to enhance opalescence. Fig. 15. Value Liner 1 and Aqua Blue 2 applied to increase mamelon contrast. The basic morphology is completed with a further application of LT1, filling the transition between the cervical and incisal areas (Fig. 16). For the gingival portion of the restoration, Tissue 5 is used to reproduce the deeper reddish areas, while Tissue 6 is applied to the superficial alveolar tissues (Fig. 17). After firing, the optical effects created by the internal staining and micro-layering become clearly visible (Fig. 18). Fig. 16. LT1 applied to complete the transition between the cervical and incisal areas. Fig. 17. Tissue 5 and Tissue 6 applied to reproduce the gingival tissues. Fig. 18. Restoration after firing following the micro-layering procedure. ILS ADJUSTMENT One of the strengths of the ILS technique is its modularity. Multiple effects can be applied during the initial characterisation, or the firing cycles can be separated to allow additional effects to be added later. Since the internal stains are designed to remain stable during firing and the internal stains contain no internal flux, further characterisation can be carried out without compromising the previous application. Another advantage is the immediate appearance of the applied effects. This allows the technician to assess the colour distribution directly during application and compare the result with the desired outcome. The colour stability of the internal stains after firing also provides excellent control throughout the procedure. The appearance observed before firing closely corresponds to the fired result, making it possible to verify the characterisation before the restoration is returned to the furnace. This can be particularly useful when digital shade-matching systems, such as photography or spectrophotometry, are used. Before applying a second layer of internal stains, the fired surface should be refined with fine diamond burs to obtain a smooth surface for the stains (Fig. 19). At this stage, the superficial enamel effects are refined by reinforcing selected characterisation effects, enhancing opalescence and adding localised spots (Chroma map 3). In the present case, a mixture of White and Mamelon Orange 2 (4:1) was applied to enhance the mamelons. Incisal Blue 2 was then placed adjacent to the mamelons to enhance the contrast. Chroma map 3. Map visualizing the planned ILS adjustment. Fig. 19. Refinement of the framework surface before the second application of internal stains. FINAL LAYERING The final layering stage is used to refine both the morphology and the enamel effects using lustre and enamel porcelains. At this stage, all areas characterised with ILS should be covered with ceramic. LT1 can be used to complete the cervical and middle thirds where no further increase in chroma is required while maintaining the value of the restoration. At the same step, LTx is applied from the middle third towards the incisal area to increase translucency and create a lower-value effect in the incisal region (Fig. 20). ELT1 is then used to refine the morphology and reproduce the natural contrast of enamel by creating the impression of greater enamel thickness in the proximal areas. For the gingival tissues, Tissue 5 is applied to compensate for shrinkage between the teeth and in the deeper areas, while Tissue 1 is used to reproduce the translucent appearance of the superficial gingival tissues (Fig. 21). Fig. 20. Application of LT1 and LTx during the final layering stage. Fig. 21. Completed enamel and gingival layering. SURFACE TEXTURE AND FINISHING After firing the enamel layer, the surface texture is refined using diamond burs of different shapes to reproduce a natural surface morphology (Fig. 22). Before self-glazing, gold powder can be applied to highlight the surface texture and facilitate its evaluation (Fig. 23). Fig. 22. Surface texture reproduced with rotary instruments. Fig. 23. Gold powder applied to highlight the surface texture before self-glazing. Self-glazing enhances the quality and compactness of the porcelain while preserving the natural concavities and convexities of the surface texture. Following glazing, the surface can be refined mechanically using ceramic polishing rubbers to achieve the final polish. The restoration can be evaluated under different lighting conditions to assess the optical properties of KATANA Zirconia YML (Fig. 24), the micro-layering effects (Fig. 25) and the surface texture. The final result demonstrates the harmony between the white and pink aesthetics (Fig. 26). Fig. 24. Transmitted-light view revealing the optical properties of the restoration. Fig. 25. Micro-layering effects visible in the finished restoration. Fig. 26. Final white and pink aesthetic result. FINAL REMARKS This case demonstrates how controlled internal characterisation and selective micro-layering can be used to preserve and enhance the optical properties of a zirconia framework. By combining accurate framework design with minimal ceramic application, highly natural white and pink aesthetics can be achieved in a predictable and efficient workflow. UNCOMPROMISED.UNMATCHED.YOURS. Sep 23, 2026
7 erreurs à éviter pour créer des restaurations naturelles avec KATANA Zirconia YML et CERABIEN MiLai Par Jade Sidou Trabuc, prothésiste dentaire. Résultat très naturel : restauration d’une incisive latérale réalisée selon une technique de micro-stratification avec la céramique CERABIEN™ MiLai. Unecaractérisation interne et une stratification minimale ont été réalisées afin de reproduire une morphologie naturelle, une translucidité harmonieuse et unétat de surface réaliste. Poudres utilisées : CCV2 et LTx, avec des maquillants internes pour créer les effets optiques souhaités et des maquillants de surfacepour reproduire les détails anatomiques et harmoniser le sourire. 7 ERREURS A EVITER POUR CREER DES RESTAURATIONS NATURELLES Les échecs esthétiques en céramique ne sont presque jamais la faute du matériau. En dix ans de laboratoire, j’ai rarement vu une restauration ratée à cause de la zircone ou de la céramique elle-même. Ce que j’observe, en revanche, c’est une série d’erreurs récurrentes – souvent invisibles au moment de la fabrication – qui compromettent le résultat final sous l’éclairage naturel ou lors du contrôle en bouche. La zircone KATANA™ Zirconia YML et la céramique CERABIEN™ MiLai (Kuraray Noritake Dental Inc.) sont des matériaux d’une grande finesse optique. Leur comportement face à la lumière est proche de celui de la dent naturelle, à condition que l’ensemble du processus de fabrication soit cohérent. Ce n’est pas la quantité d’effets appliqués qui fait la qualité d’une restauration : c’est la compréhension des principes qui gouvernent la perception de la teinte, de la translucidité et de la texture. Cet article, né de mon expérience quotidienne au laboratoire, présente les sept erreurs les plus fréquentes que j’ai observées – chez moi comme chez des confrères – lors de la réalisation de restaurations micro-stratifiées. Pour chacune, j’explique pourquoi elle survient, quelles en sont les conséquences optiques, et quelle solution pratique peut être mise en oeuvre immédiatement. Erreur n°1- Mauvais choix de translucidité de l’infrastructure zircone Erreurs n°2 & 3- Copier sans comprendre- Négliger la préparation clinique Erreurs n°4 & 5- Corriger la teinte avec la céramique- Excès de contraste Erreurs n°6 & 7- Polissage négligé- Évaluation sous éclairage INFRASTRUCTURE, LECTURE OPTIQUE ET PREPARATION CLINIQUE Erreur n°1 – Choisir la mauvaise translucidité dès le départ Pourquoi elle survient : le choix du grade de KATANA™ Zirconia YML est souvent dicté par habitude ou par défaut, sans analyse du contexteclinique réel. On sélectionne un grade KATANA™ Zirconia (UTML ou STML) sans tenir compte de la teinte du moignon, de l’épaisseur réduitedisponible ou de la clarté des dents adjacentes. Conséquences : une infrastructure trop translucide sur un moignon sombre produit un effet grisâtre en profondeur impossible à corriger ensuite avec la céramique. À l’inverse, une infrastructure trop opaque bloque la lumière et donne un rendu mat, plâtreux, sans vie. Solution : évaluer systématiquement la teinte du moignon préparé avant toute commande de disque. Utiliser les guides de sélection KATANA™Zirconia YML qui croisent la valeur du moignon, l’épaisseur de réduction et la teinte cible. Sur moignon C3 ou D4, privilégier un grade ML ou HTpour maintenir la valeur sans que la profondeur ne contamine la surface. Erreur n°2 – Copier une photo plutôt que comprendre la dent naturelle Pourquoi elle survient : la tentation est grande de reproduire à l’identique une photographie de teinte reçue du praticien. Mais une photo est uneinterprétation de la lumière, pas la lumière elle-même. Elle aplatit les volumes, exagère certains reflets et efface des transitions subtiles. Conséquences : on reproduit des effets sans comprendre d’où ils viennent. Un halo incisif visible sur photo peut être une illusion optique liée à l’angle du flash. Lorsque l‘on tente de le reproduire en céramique, on obtient un effet artificiel et statique. Solution : apprendre à lire une dent, pas à la copier. Analyser la distribution des lobes de développement, la direction de la lumière dans la photo, les zones de translucidité réelles versus les reflets. Avec CERABIEN™ MiLai, nous travaillons en pensant à la circulation de la lumière à l’intérieur de la restauration, pas à son apparence en surface. Erreur n°3 – Négliger l'impact de la préparation clinique Pourquoi elle survient : le prothésiste travaille sur l’empreinte ou le modèle numérique qu’il reçoit. Il n’est pas toujours en mesure de refuser une préparation sous-réduite ou irrégulière, surtout dans un contexte de délais courts. Conséquences : une préparation insuffisamment réduite contraint à fabriquer une infrastructure trop fine, sans espace suffisant pour la céramique CERABIEN™ MiLai. Une préparation trop sombre, non traitée, contamine toute la chaîne optique : même la meilleure céramique ne peut contrebalancer unfond opaque grisâtre. Solution : instaurer un protocole de communication systématique avec le praticien : fiche de relevé d’espace (vestibulaire, occlusal, interproximal), teinte du moignon photographiée en lumière naturelle, et si possible en lumière polarisée. Ne jamais hésiter à demander une retouche de préparationpar écrit. Un rapport de fabrication documenté protège le prothésiste et améliore le résultat. Astuce : avant de commencer un cas complexe, vérifier la teinte du moignon, l’espace disponible et les conditionslumineuses permet d’anticiper la majorité des difficultés esthétiques. LA CERAMIQUE NE PEUT PAS TOUT CORRIGER Erreur n°4 – Vouloir corriger la teinte uniquement avec la céramique C’est l’une des erreurs les plus fréquentes et les plus coûteuses en temps. Elle naît d’une conviction erronée : que la céramique de stratification est un outil de correction de teinte universel. En réalité, la couleur finale d’une restauration microstratifiée est le résultat d’une équation à quatre variables – infrastructure,moignon, ciment de scellement et céramique – et modifier l’une sans tenir compte des autres est voué à l’échec. Concrètement : si l’infrastructure KATANA™ Zirconia YML choisie est trop claire pour un moignon C4, appliquer une céramique CERABIEN™ MiLai plus saturée en surface produira une restauration à deux visages – trop chaude en lumière directe, trop grise en lumière transmise. La réflexion et la transmission de la lumière ne se comportent pas de la même manière, et l’oeil humain perçoit les deux simultanément. Solution pratique : établir la chaîne optique complète avant de commencer. Connaître la teinte du ciment prévu par le praticien (ou le demander expressément), évaluer l’infrastructure en lumière transmise avant stratification, et construire la restauration en pensant à la valeur globale, pas à la teinte de surface. Erreur n°5 – Créer trop de contraste entre les effets céramique La tentation des effets est réelle. Les céramiques CERABIEN™ MiLai offrent une palette d’opalescent, de fluorescent, de mamelon et d’effets incisal d’une richesse extraordinaire. Et c’est précisément là que réside le danger : vouloir tout utiliser. Les dents naturelles sont – sauf exception – des objets optiques subtils. Leurs effets internes (mamelons, halos, zones de translucidité) sont rarement perceptibles de loin. Ce qui crée la naturalité, c’est la cohérence des transitions, pas l’intensité des effets. Une restauration surchargée en contrastes se lit immédiatement comme artificielle, même par un noninitié, parce qu’elle attire le regard au lieu de s’y fondre. Conseil : Travailler les mamelons avec parcimonie et observer régulièrement la pièce à distance (50 cm minimum) pendant la stratification. POLISSAGE, TEXTURE DE SURFACE ET CONTROLE DE LA LUMIERE Erreur n°6 – Sous-estimer l'importance du polissage et l'état de surface L’état de surface d’une restauration céramique est l’un des facteurs les plus déterminants dans sa perception optique finale – et l’un des plus négligés. La texture de surface agit comme un filtre entre la lumière incidente et l’observateur. Une surface trop lisse réfléchit la lumière de manière spéculaire, créant des éclats brillants qui peuvent révéler des imperfections de teinte. Une surface trop rugueuse diffuse la lumière de façon anarchique, ce qui assombrit la valeur perçue et accentue les irrégularités chromatiques. Avec la céramique CERABIEN™ MiLai, la glaçure joue un rôle particulier : elle homogénéise les micro-textures issues de la stratification et participe à la perception de la profondeur. Une glaçure trop épaisse ou trop fine modifie la hiérarchie des couches visuelles. Le polissage manuel post-cuisson, lorsqu’il est bien maîtrisé, peut surpasser la glaçure en termes de naturalité, car il permet de reproduire des textures anatomiques différenciées – plus lisses en zone cervicale, plus texturées en zone incisive. Solution pratique : séquencer le polissage par zones anatomiques. Utiliser des cupules silicone de granulométrie décroissante en respectant une pression légère et constante. Sur KATANA™ Zirconia YML, en restauration monolithique, finaliser avec une pâte diamantée 1 μm pour atteindre un lissé de surface comparable à l’émail naturel. En stratifié CERABIEN™ MiLai, texturer avant glaçure avec un instrument rotatif fin, et vérifier l’état de surface avant cuisson finale. Conseil polissage : je conserve toujours une dent naturelle extraite (non traitée) sur mon plan de travail comme référence de texture. Avant de valider le polissage final, je compare la restauration à cette dent sous lumière rasante. C’est un test simple, gratuit, et redoutablement efficace. Erreur n°7 – Evaluer son travail sous une seule source lumineuse Le laboratoire dentaire est souvent équipé d’un éclairage néon blanc froid – pratique pour travailler, mais trompeuse pour évaluer une restauration. La lumière froide surestime la valeur (blancheur), atténue les rouges et les jaunes, et efface les translucidités. Une restauration qui semble parfaite sous cet éclairage peut paraître grise ou mate en lumière naturelle, et trop chaude à la lumière incandescente d’une salle à manger.Ce phénomène, connu sous le nom de métamérisme, est particulièrement critique avec les céramiques à haute fluorescence comme CERABIEN™ MiLai. Lespigments fluorescents répondent différemment selon le spectre lumineux : une restauration très fluorescente semblera éclatante en lumière UV ou naturelle riche en UVA, et plus ordinaire en lumière artificielle filtrée. Ignorer ce comportement conduit à des restaurations qui surprennent en bouche. Solution pratique :Mettre en place un protocole de contrôle à trois éclairages : lumière du jour naturelle (nord, diffuse), lumière artificielle chaude (3000K), et lumière fluorescente ou LED neutre (4000K).Observer à chaque fois la restauration seule, puis en contexte (posée sur le modèle contre les dents adjacentes). Les différences de comportement entreéclairages vous diront plus sur votre restauration que n’importe quel autre test. Conseil éclairage : j’ai, dans mon laboratoire, une petite fenêtre orientée nord, sans soleil direct. C’est ma référence lumineuse principale. Chaque restauration passe obligatoirement par cette fenêtre avant de quitter le labo. Deux minutes qui évitent bien des retours. Ce protocole d’évaluation tricolore permet de détecter le métamérisme avant la pose, d’anticiper le comportement de la restauration dans tous les environnements du patient, et de valider la fluorescence de la céramique dans des conditions spectrales variées. CONCLUSION : LA MAITRISE OPTIQUE AVANT LES EFFETS Après des années à travailler avec la zircone KATANA™ Zirconia YML et la céramique CERABIEN™ MiLai de Kuraray Noritake, ma conviction est inchangée : ce ne sont pas les matériaux qui limitent le résultat, c’est la compréhension que l’on en a. Ces sept erreurs ne sont pas des fautes professionnelles – ce sont des pièges logiques que tout prothésiste rencontre sur la route de l’excellence. Les identifier, les nommer et les comprendre est déjà la moitié du chemin.Ce qui distingue une restauration médiocre d’une restauration remarquable, c’est rarement la complexité de sa stratification.C’est la cohérence de ses choix : le grade de zircone adapté au contexte clinique, la lecture juste de la lumière dans la dent naturelle, le dialogue avec le praticien sur la préparation et le ciment, la retenue dans les effets, la rigueur du polissage, et la discipline du contrôle lumière. Ce sont des principes simples, mais leur application systématique transforme le niveau de production d’un laboratoire. Compréhension optique Analyser la lumière, les volumes et les transitions avant de toucher un pinceau. La restauration commence dans l’observation, pas dans la stratification. Cohérence de la chaîne Infrastructure, moignon, ciment et céramique forment un système. Chaque élément influence les autres. Aucune correction isolée ne peut compenser un maillon faible. Retenue dans les effets Les dents naturelles sont subtiles. La naturalité naît de la cohérence des transitions, pas de l’accumulation des effets céramiques. Rigueur de contrôle Évaluer sous différents éclairages, à distance et en situation clinique. Un protocole de validation rigoureux est la dernière ligne de défense avantla pose. La céramique CERABIEN™ MiLai, dans sa richesse chromatique et sa réponse optique proche du tissu naturel, n’exprime pleinement son potentiel que lorsqu’elle est utilisée avec discernement. Elle pardonne peu les excès – mais elle récompense généreusement la maîtrise. C’est en cela qu’elle est, pour moi, l’outil de stratification le plus fidèle disponible aujourd’hui, capable de s’adapter aussi bien aux restaurations unitaires qu‘aux restaurations plurales. « Une restauration naturelle ne se voit pas. Elle se ressent. Ce sont les principes optiques, pas laquantité d’effets, qui créent l’illusion du vivant. » – Jade Sidou Trabuc SANS COMPROMIS.INEGALE.A VOTRE IMAGE. Oct 16, 2026
Nouveau BOND magazine pour prothésistes dentaires : Materials Meet Mastery Que faut-il pour réaliser des restaurations alliant efficacité, précision et esthétique naturelle ? Dans cette nouvelle édition lab-side de BOND Magazine, des prothésistes dentaires partagent leur expérience des zircones modernes, de la micro-stratification et des techniques permettant d’exploiter pleinement le potentiel des matériaux actuels. Découvrez des cas pratiques, des techniques d’experts, de nouvelles perspectives et laissez-vous inspirer pour votre pratique quotidienne. A lire - en anglais - ici : Start Reading: BOND | VOLUME 13 | 09/2026 Previous versions: BOND | VOLUME 12 | 12/2025 BOND | SPECIAL LAB SIDE EDITION | 07/2025 BOND | VOLUME 11 | 07/2024 BOND | VOLUME 10 | 10/2023 BOND | VOLUME 9 | 08/2022 Oct 9, 2026
Futureproof your lab with CERABIEN™ MiLai LOOKING FOR PORCELAINS AND INTERNAL STAINS FOR MICRO-LAYERING ON LITHIUM DISILICATE AND ZIRCONIA? The innovative product CERABIEN™ MiLai, based on synthetic feldspar, enables dental technicians to add the final touch to their zirconia or lithium disilicate restorations in a simple and time-saving procedure – for outstanding aesthetics right from the start. Check out the video to learn about the features of CERABIEN MiLai and the resulting benefits. Jun 10, 2025
A Fresh Look at the Future of Ceramics Recently we introduced CERABIEN™ MiLai - a brand-new line of porcelains and internal stains specially developed for micro-layering on zirconia and lithium disilicate. In this special edition of BOND magazine, we're excited to share the very first clinical cases using this innovative system. From beautifully natural veneers to streamlined lab workflows, these real-world examples show just what’s possible with CERABIEN™ MiLai. If you’re curious about what the future of aesthetic dentistry looks like, this is the place to start! Start Reading: BOND | VOLUME 12 | 07/2025 Previous versions: BOND | VOLUME 11 | 07/2024 BOND | VOLUME 10 | 10/2023 BOND | VOLUME 9 | 08/2022 BOND | VOLUME 8 | 12/2021 BOND | VOLUME 7 | 10/2020 Jul 15, 2025
Welcome to the future of ceramic layering Cases by DT Ioulianos Moustakis and MDT Andreas Chatzimpatzakis Producing dental restorations that are not recognizable as such – this is probably the ultimate goal of every dental technician. For a long time, pursuing this goal was complicated by core materials whose optical properties were very different from those of natural teeth. The dark metal or opaque zirconia substructures had to be masked by applying multiple layers of intensively coloured ceramic powders, topped by more translucent porcelains imitating the enamel. The rise of modern, tooth-coloured core materials such as lithium disilicate and zirconia has changed the game. With a core that is highly aesthetic, translucent and close to the final shade, it became much easier to produce a restoration that is virtually indistinguishable from the adjacent teeth. The thickness of the porcelain layer decreased as did the number of shades to be combined and necessary bakes to be conducted. The use of the existing porcelain systems for the new micro-layering techniques posed several new challenges: those systems originally developed for opaque zirconia were indicated for the more translucent zirconia core materials, but usually not for lithium disilicate. Moreover, the complexity of the systems made their use unnecessarily complicated for inexperienced users. Consequently, Kuraray Noritake Dental Inc. developed a new porcelain system for micro layering on zirconia and lithium disilicate core materials. The portfolio of CERABIEN™ MiLai, which refers to micro-layering and the Japanese word for future (mirai), consists of 15 internal stains (13 tooth colours including Bright to boost the translucent and Fluoro to boost the fluorescent effect, and two tissue colours) and 16 porcelains (12 tooth porcelains and four tissue porcelains). Hence, it enables dental technicians to implement a modernized version of the original Internal Live Stain Technique developed by Hitoshi Aoshima in the early 1990s in a porcelain layer of minimal thickness. The following demo cases are used to show how to achieve lifelike aesthetic restorations based on aesthetic zirconia and on lithium disilicate. Illustrating each step, the cases allow users to anticipate how much time and effort can be saved compared to traditional layering techniques. CASE 1 MAXIMALLY SIMPLE APPROACH ON LITHIUM DISILICATE In this case, the idea was to restore the six maxillary anterior teeth in a simple way. The selected core material for the planned veneers was Amber Press (HASS Bio) LT in the shade B1. The lithium disilicate restorations were pressed with a micro cut-back and their fit was checked on the model, followed by surface texturing, sandblasting and steam cleaning [Fig. 1a]. When the veneers are milled instead of pressed, the procedure is the same. After that, the restorations are ready for the application of the CERABIEN™ MiLai internal stains for characterization of the core. In order to achieve the desired result, it is critical to mix the selected stains with the internal stain Bright responsible for a translucent effect. The chroma map for internal staining is shown in figure 1b, the outcome of the procedure in figure 1c. Subsequently, the veneers were built up to their final anatomy with selected CERABIEN™ MiLai Porcelains [Fig. 1d] to imitate the enamel and create a window effect. In this approach, simple layering and a single bake are sufficient to create the desired restoration. After glazing with Clear Glaze, finishing of the restorations was accomplished with paper-abrasive cones, a rubber polisher and polishing paste. The outcome is shown in figure 1e. Fig. 1a. Pressed lithium disilicate veneers after surface optimization (grinding), sandblasting and steam cleaning on the model. Fig. 1b. Chroma map for the application of CERABIEN™ MiLai Internal Stains to the lithium disilicate surface. We selected B+ (red colour) for the cervical area. For the proximal and middle incisal areas, Incisal Blue 1 & 2 (gradient blue colour) were applied and incisally in the middle, we chose Cervical 2 (orange colour). Tip: all internal stains were mixed with Bright and IS Liquid. Fig. 1c. Appearance of the veneers after the application of CERABIEN™ MiLai Internal Stains. Fig. 1d. CERABIEN™ MiLai Porcelains applied on top of the internal stains: LT1 is used for the cervical area (red) and a mixture of TX and E2 (30:70 ratio) for the middle and the incisal third. Fig. 1e. The final restorations after glazing with Clear Glaze and mechanical polishing using paper-abrasive cones, a rubber polisher and Pearl Surface Z (Kuraray Noritake Dental Inc.). Images courtesy of Andreas Chatzimpatzakis. CASE 2 ADVANCED APPROACH ON LITHIUM DISILICATE In order to imitate a more complex inner colour structure with mamelons, different levels of translucency and more individual effects, a slightly more complex micro-layering approach was selected. Again, the core was produced using Amber Press in the LT variant and the shade B1. After pressing and fitting on the model, we reduced the incisal third to create space for the transparent porcelain [Fig. 2a]. Subsequently, an extremely thin layer of CERABIEN™ MiLai Porcelain adding translucency to the enamel surface (TX) was applied in the incisal third of the veneers [Fig. 2b]. In this way, it is possible to create an optimally translucent basis for the application of the internal stains. The first bake was conducted and the surfaces were sandblasted as well as steam cleaned to create the conditions needed for internal staining [Figs. 2c and 2d]. The chroma map for and outcome of the internal stain application are shown in figures 2e and 2f. Afterwards, a final layer of CERABIEN™ MiLai Porcelain was applied [Fig. 2g]. All four incisors received a layer of LTx to add ultimate translucency and opalescence to the enamel, while LT1 was the material of choice in the cervical third of the canines, where LTx completed the layer in the other areas. As LT1 is slightly less translucent and opalescent, a natural effect is obtained in this way. The outcome obtained after glazing and mechanical polishing is shown in Figure 2h. Fig. 2a. Lithium disilicate veneers reduced for the advanced layering procedure involving more porcelains and bakes. Fig. 2b. Thin layer of TX applied to the incisal third of the restorations to boost the translucency in this area. Fig. 2c. Appearance of the veneers after the first bake. Fig. 2d. Ceramic surfaces after sandblasting and steam cleaning. Fig. 2e. Chroma map for the application of the internal stains. Cervical 2 was used for the cervical third, Incisal Blue 2 for the proximal regions and Mamelon Orange 2 for the mamelons. As mentioned before, the selected internal stains were mixed with Bright. Fig. 2f. Appearance of the veneers after the bake of the applied CERABIEN™ MiLai Internal Stains. Fig. 2g. Final build-up to reach the desired shape of the veneers. LTx is the only material applied to the central and lateral incisors, while the canines are built up with LTx in the incisal and middle and LT1 in the cervical third. Fig. 2h. Glazed and polished veneers on the model. Images courtesy of Andreas Chatzimpatzakis. CASE 3 ADVANCED APPROACH WITH GUM AREAS ON ZIRCONIA In this case, a highly complex ten-unit bridge with gum parts in the anterior region had to be produced. The selected framework material was KATANA™ Zirconia HTML Plus (Kuraray Noritake Dental Inc.), which offers a multi-layered colour structure, an optimized translucency and the high flexural strength required for long-span bridges. The restoration was milled in an anatomically reduced design and the surface texture was optimized with rotating instruments before sintering [Fig. 3a]. After the final sintering procedure, the restoration had a favourably high translucency in the incisal region and a natural shade structure [Figs. 3b and 3c]. In the first step of the micro-layering procedure, the application of the CERABIEN™ MiLai Internal Stains was planned and carried out [Figs. 3d and 3e]. Subsequently, different layers of CERABIEN™ MiLai Porcelain were applied. The images 3f to 3h reveal which shades were combined and illustrate the procedure, while the outcome before and after the last bake is shown in Figures 3i to 3k. In the next step, the gum areas were completed using the CERABIEN™ MiLai tissue porcelains Tissue 4, 5 and 6 in the order and locations described in Figures 3l to 3o. In the final layer, Tissue 1 was mixed with ELT1 to imitate the labial frenulum and with LTx to create a smooth transition to the natural gingiva [Figs. 3p and 3q]. The final restoration is shown in Figure 3r. Fig. 3a. Milled restoration after surface texturing. Fig. 3b. Shade and translucency of the sintered zirconia restoration. Fig. 3c. Highly translucent bridge on the model. Fig. 3d. Chroma map for the application of CERABIEN™ MiLai Internal Stains. Fig. 3e. Applying a mixture of Bright, Salmon Pink and Tissue Pink to the gum area. Fig. 3f. Application of CERABIEN™ MiLai E2 to add translucency to the structure. Fig. 3g. Application of Tx and a mixture of Tx and CCV-2 to individualize the cervical and incisal areas while boosting the translucency of the enamel in the middle and incisal third. Fig. 3h. Adding a final layer of LT1 for additional translucency and opalescence. Fig. 3i. Appearance of the ten-unit bridge before the bake – labial view. Fig. 3j. Appearance of the ten-unit bridge before the bake – palatal view. Fig. 3k. Appearance of the ten-unit bridge after the bake. Fig. 3l. Application of small amounts of Tissue 5 … Fig. 3m. … covered with a layer of Tissue 6 alternating with Tissue 5. Fig. 3n. Following another bake, Tissue 5 is applied in the proximal areas. Fig. 3o. How to combine Tissue 6 and Tissue 4 in the next layer. Fig. 3p. How to complete the tissue layer with Tissue 1, locally mixed with ELT1 or LTx. Fig. 3q. Restoration before the final bake. Fig. 3r. Final ten-unit bridge ready for placement. Images courtesy of Ioulianos Moustakis. Article first published in Labline Magazine Issue 45, Spring 2022 edition. Mar 25, 2025
Fire it right! Achieving consistent, high-quality ceramic restorations requires more than just premium materials — it demands a deep understanding of your tools and processes. The CERABIEN™ MiLai Firing Guide is designed to help dental technicians unlock the full potential of this advanced micro-layering porcelain system. With tips on optimal furnace positioning, trial baking, and troubleshooting, this guide supports efficient, aesthetic results every time. Whether you're new to CERABIEN™ MiLai or looking to refine your firing process, this resource lays the groundwork for success. Aug 26, 2025
Micro-layering on lithium disilicate Case by Francesco Ferretti, MDT Is it possible to produce lifelike porcelain veneers using lithium disilicate and a porcelain system with a reduced number of internal stains and porcelains designed for micro-layering? This is what we wanted to find out when we decided to test the new CERABIEN™ MiLai line-up. As loyal users of the CERABIEN ZR family for porcelain layering on zirconia, we hoped that the new product would offer similar handling and optical properties. The CERABIEN™ MiLai line-up consists of 15 internal stains and 16 porcelains, which are - like CERABIEN ZR - based on synthetic feldspathic porcelain technology from Kuraray Noritake Dental Inc. With a comparatively low firing temperature of 740 °C (or 1,364 °F), the system may be used on zirconia as well as silicate ceramic restorations, provided that the CTE value of the materials is between 10.2 and 10.5 × 10-6/K (50 °C – 500 °C). This is true for lithium disilicate, our preferred base material for the production of ceramic veneers. The thickness of the porcelain layer is usually smaller than 0.5 mm, which allows us to exploit the aesthetic potential of the underlaying ceramic, while creating some individual effects for the underlying structure and the enamel. A clinical case predestined for the use of the new system is shown below. Fig. 1. Young male patient with discoloured composite restorations on his maxillary central incisors. Fig. 2. The patient was unhappy with his smile aesthetics, so that it was decided to place more durable ceramic veneers. Fig. 3. Appearance of the central incisors after minimally invasive tooth preparation. Fig. 4. Veneers made of lithium disilicate individualized with CERABIEN™ MiLai placed on the model. Fig. 5. Intraoral view of the teeth after adhesive cementation of the veneers. Fig. 6. Close-up view of the anterior teeth. Fig. 7. Smooth optical integration of the veneers: They show some individual effects and are virtually indistinguishable from natural tooth structure of the adjacent lateral incisors. Fig. 8. Black-and-white photograph of the maxillary anterior teeth. Fig. 9. Smile aesthetics. Fig. 10. Beautiful treatment outcome. COMPACT SYSTEM The compact line-up of CERABIEN™ MiLai with its nicely developed internal stains and porcelains enables us to imitate the patient’s natural teeth very well in the great majority of cases. Shades are easily selected and the favourable consistency of the porcelains facilitates application in thin layers. Due to the reduced thickness of the porcelain layer, it is possible to play with the optical properties of the underlying lithium disilicate, creating a final restoration with a natural appearance despite the simplified procedure. Jul 8, 2025
Practical chroma maps for anterior case CERABIEN™ MiLai in Daily Use A tooth with crack lines, a characteristic round shape, age-related changes, or medication-induced discoloration — there’s no one-size-fits-all solution when it comes to all-ceramic anterior restorations, even when the porcelain system and production technique are defined. To support technicians who wish to simplify their layering workflow using the micro-layering technique and CERABIEN™ MiLai — whether just getting started or looking to refine their process — we’ve collaborated with DT Dumitru Leahu to create a Chroma Map Catalogue featuring seven typical anterior restoration scenarios. Each case example includes a detailed screenshot of the framework design, chroma maps outlining the planned steps, images of internal staining and micro-layering procedures, and the final restoration on the model. You’ll also find essential information about the selected framework material, target shade, and other relevant details. We invite you to use the CERABIEN™ MiLai Catalogue as a step-by-step guide to success or simply as inspiration for individual cases. It offers a fast track to understanding the material’s optical properties and will make planning your next micro-layering case more intuitive. No need to start from scratch — instead, adapt what’s already there and gradually develop your own maps and techniques. Interested in the CERABIEN™ MiLai Chroma Map Catalogue? Download it here! Sep 18, 2025
Micro-layering: are there benefits of using a dedicated porcelain system? Case by Andreas Chatzimpatzakis When dental technicians from all over the world started using the micro-layering technique, they simply combined a reduced number of porcelains and stains from their original porcelain system. After some time, porcelains specifically designed for micro-layering were introduced to the dental market. Consequently, early adopters had to decide whether or not to switch to one of those new systems. For me as a frequent user of CERABIEN™ ZR (Kuraray Noritake Dental Inc.), a porcelain system based on synthetic feldspathic porcelain developed for porcelain layering on zirconia frameworks, switching to any micro layering porcelain system was not an option. However, when I had the chance to test the brand-new CERABIEN™ MiLai porcelains and internal stains (Kuraray Noritake Dental Inc.), I grabbed it for two reasons. Firstly, the simplicity! I was surprised how easily I could achieve a high aesthetic result without using too many different ceramic powders. Secondly with this system, I have a micro-layering porcelain system at my disposal that works for both, zirconia and lithium disilicate. Farther more, the product is well-aligned to CERABIEN™ ZR – and offers a very similar handling. CASE EXAMPLE The following case is a nice example of how it may be used in the anterior region. The male patient had already been treated with monolithic zirconia crowns from another dental laboratory in the posterior region. Now, he desired a maxillary anterior smile makeover due to discoloured composite restorations and signs of tooth wear. The decision was made to produce six veneers with frameworks made of lithium disilicate (Amber Press), individualized with CERABIEN™ MiLai using the micro-layering technique. I would like to thank the prosthodontist Dr Konstantina Aggelara for the excellent collaboration and the intra oral photos. For layering, I simply applied CERABIEN™ MiLai Value Liner 1. Then, I used CCV2 in the cervical and Tx in the incisal area, as well as Liner 2 for the mamelons. Internal stains were applied after the first bake. Subsequently, the canines were completed with LT1. The lateral and central incisors were built up with LT1 in the cervical area, Creamy Enamel on the marginal ridges and the middle and E2 mixed with Tx in the ratio 70/30 in the incisal area. Fig. 1. Initial situation: The patient was unhappy with his lip line and facial appearance, … Fig. 2. … particularly due to discoloured composite restorations and severe wear in the maxillary anterior region. Fig. 3. Shade determination after tooth preparation. Fig. 4. Restorations produced with Amper Press (Shade LT A2), individualized with CERABIEN™ MiLai. Fig. 5. Lateral view: The internal play of colours (internal stains) creates a nice effect. Natural shading and surface texture. FINAL SITUATION Fig. 6a and 6b. Restorations placed in the patient’s mouth. THE PERFECT COMPLEMENT TO MY STANDARD PORCELAIN SYSTEM As hoped, CERABIEN™ MiLai offers similarly great handling properties as CERABIEN™ ZR – probably mainly due to the fact that it is also based on synthetic feldspathic ceramic. It is not only responsible for consistent handling, but also for predictable optical properties, eliminating unwanted shadow effects. As the system is designed for micro-layering, it offers a natural appearance when applied in thin layers. This fact – in addition to the broader compatibility (to high-strength oxide and silicate ceramics) – makes it worthwhile to consider using a specific porcelain system for micro-layering. Experience shows that it works just as well on zirconia as it does on lithium disilicate, so that combining both framework materials in a single patient becomes a lot easier, while the line-up is neat. Aug 12, 2025
The new way of micro-layering Case by Andreas Chatzimpatzakis With CERABIEN™ ZR, Kuraray Noritake Dental Inc. offers a whole porcelain portfolio for the finishing of restorations based on zirconia. Originally developed for complex layering techniques, the synthetic feldspathic porcelain powders, liquid ceramics, internal and external stains allow for the creation of beautiful dental artwork. We love to work with the system as it offers consistent handling and mechanical properties, allowing us to produce predictable outcomes. However, the complexity of the system with its huge number of different shades can pose challenges to less experienced users. This complexity is further increased when different substructure materials are used, as CERABIEN™ ZR works exclusively on zirconia, so that users would need to select and manage a second porcelain system when opting for a lithium disilicate framework, for example. For dental technicians who would like to keep it smartly simple, the new CERABIEN™ MiLai line-up is certainly a great solution. Specifically developed for micro-layering on pre-shaded, highly translucent substructure materials such as lithium disilicate or a latest-generation zirconia, CERABIEN™ MiLai porcelains and internal stains may be applied in a thin (micro-) layer on restorations with a small (vestibular) cut-back. Just like CERABIEN™ ZR, the new system is based on synthetic feldspathic porcelain delivering consistent properties, but the line-up is reduced to 15 internal stains and 16 porcelains. As the CERABIEN™ MiLai has a firing temperature of 740 °C (1,364 °F), it works on oxide ceramics like zirconia, but also on reinforced silicate ceramics like lithium disilicate*. *The material should have CTE value within 9.5~11.0×10-6 /K (50~500 °C) Consequently, the system may be used as the universal porcelain system for micro-layering on aesthetic ceramics. With its slim portfolio, it fits the philosophy of creating impressive restorations with fewer components, layers and bakes very well, as demonstrated in two different case examples below. VENEERS BASED ON LITHIUM DISILICATE Fig. 1. Six anterior veneers made of lithium disilicate (Amber Press LTA2 HASS Bio), designed with a slight cut-back to create the space needed for micro-layering. Fig. 2. Restorations after the application of CERABIEN™ MiLai Value Liner 1 followed by wash firing and internal staining. This type of porcelain increases the value of lithium disilicate restorations. By staining the core, we control the chroma and add some internal characteristic effects. In this case, we added Cervical 2 to the marginal area and characterized the incisal third with Cervical 2 and Incisal Blue 1 & 2. Fig. 3. First porcelain layer consisting of CERABIEN™ MiLai LT1 applied to the cervical, ELT1 to the mesial third and TX to the incisal third before … Fig. 4. … and after the first bake. Fig. 5. Application of internal stains for special effects like cracks, intense chroma etc. Fig. 6. Second porcelain layer consisting of CERABIEN™ MiLai LT1 applied to the canines as well as the cervical third of the central and lateral incisors, while the middle and incisal third of the four incisors is individualised with LTx. Fig. 7. Finished restorations on the master cast. Fig. 8. Lateral view of the restorations highlighting their natural surface texture. ANTERIOR BRIDGEWORK BASED ON ZIRCONIA Fig. 1. KATANA™ Zirconia HTML Plus (A2 shade) structure immediately after milling. Fig. 2. Appearance of the substructure after sintering. Fig. 3. High translucency of the zirconia with the applied CERABIEN™ MiLai stains and porcelains on teeth and gingiva. Fig. 4. Palatal view of the individualized restoration before the firing process. Fig. 5. Restoration ready for try-in. CONCLUSION The two different cases confirm that CERABIEN™ MiLai works very well on lithium disilicate and zirconia. Despite the reduced number of stains and shades, it is possible to imitate most of the shades and individual effects found in natural teeth, which are important for lifelike outcomes. Hence, the new material is worth a try for everyone who prefers standardized and simplified procedures. Apr 8, 2025
Veneer Characterization with CERABIEN™ MiLai Internal Stains on KATANA™ Zirconia YML In the first part of this aesthetic veneer workflow, dental technician Roberto Rossi demonstrates how to apply internal stains to KATANA™ Zirconia YML. This crucial step enhances the restoration by adding depth, translucency, and natural character from within. After refining the anatomy and surface texture, Roberto skillfully blends and applies selected shades such as A+, Fluoro, and Incisal Blue. These shades create depth, opalescence, and inner vitality that radiate through the final restoration. A must-watch for dental technicians looking to elevate their zirconia restorations with advanced, yet straightforward, internal staining techniques. Oct 21, 2025
A dynamic duo for natural-looking, functional restorations Case by Kostia Vyshamirski, DT KATANA™ Zirconia YML AND CERABIEN™ MiLai Virtually every patient in need of restorative treatment desires functional restorations with an aesthetic appearance. However, the individual expectations and needs may be very different depending on the clinical situation (state of the natural tooth structure, parafunctional behaviour, periodontal health etc.), the patient’s financial resources and personal preferences. A versatile material combination fulfilling many different needs and desires is KATANA™ Zirconia YML finished using micro-layering with the new CERABIEN™ MiLai (both Kuraray Noritake Dental Inc.). This system supports low invasive preparations due to a favourable minimum wall thickness of the merely monolithic multi-layered zirconium oxide prosthesis and a minimal thickness of the porcelain layer in the aesthetic zone. Moreover, the high strength zirconium oxide prosthesis combined with only a very thin layer of porcelains makes this technique extremely useful in patients with parafunctional habits like bruxism. Last but not least, consisting of a carefully compiled selection of internal stains and porcelain shades, CERABIEN™ MiLai supports the creation of individual 3D shade effects that mimic those of natural teeth even when space is limited. The following case example reveals how this is possible. INITIAL SITUATION The patient presented with concerns related to both function and appearance. During the diagnostic phase, it was determined that increasing the vertical dimension of occlusion (VDO) and creating a wax-up in the new jaw position would be necessary to improve both the occlusion and the aesthetic appearance of the smile. Fig. 1. Intraoral scan of the maxillary teeth revealing severe tooth wear. Fig. 2. Intraoral scan of both jaws confirming the need for an increase of the VDO. Fig. 3. Intraoral scan: Occlusal view of the maxillary teeth. TREATMENT PLANNING AND COMPUTER-AIDED DESIGN Following the approval of the wax-up, the treatment plan was created. It consisted of restoring the four anterior incisors with zirconia crowns and performing direct composite restorations on the posterior and lower teeth. To conserve as much of the healthy tooth structure as possible, the space created was aligned to the required wall thickness of the planned restoration (framework + micro-layer of porcelain in the vestibular areas only). Following an aesthetic analysis, the crowns were designed with a minimal vestibular cutback. This was due to the patient’s functional problems, which would increase the chipping risk in case of using a more heavy cutback design with a thicker, more conventional porcelain layer. KATANA™ Zirconia YML offers exceptional aesthetics, requiring only a 0.3 mm reduction for the porcelain to achieve natural results. Therefore, it was the logical material choice for this specific case. Fig. 4. Minimally invasive preparations for the crowns. Fig. 5. Occlusal view of the preparations. Fig. 6. Aesthetic analysis – a crucial step for achieving the desired new smile. Fig. 7. Frontal view of the crowns in their final cutback design. Fig. 8. Lateral view of the crowns in the CAD software. CROWN PRODUCTION Immediately after milling, the zirconia surface was treated with effect liquids. This kind of pre-sintered characterization helps enhance the characteristics of zirconia restorations. In the presented case, orange stain was applied to the cervical area, while a blue stain was used at the incisal edge. In addition, a white opaque liquid was applied to the inner surface of the central zirconia crowns to block out any discolouration from the underlying tooth structure. Following final sintering, the vestibular layer of porcelain was built up with CERABIEN™ MiLai using a combination of internal stains and porcelain micro-layering. After morphological adjustments and surface polishing, the restorations were completed by applying CERABIEN™ ZR FC Paste Stain and Glaze. Final polishing was then performed to enhance the natural appearance of the surfaces. Fig. 9. Effect liquids applied to the cervical and incisal areas of the crowns. Fig. 10. Treatment of the central incisor crowns’ inner surfaces. Fig. 11. KATANA™ Zirconia YML framework after sintering. Fig. 12. CERABIEN™ MiLai Internal Stains and Porcelains. Fig. 13. Prepared vestibular surfaces ready for application of the internal stains. Fig. 14. Application of 0.2-0.3 mm layers of CERABIEN™ MiLai porcelain: CCV2 for the cervical area, LT1 – Creamy Enamel for the main body and luster, LTX at the incisal edge. Fig. 15. Frontal view of the final restorations on the model. Fig. 16. Lateral view of the final restorations on the model. Fig. 17. Polished and glazed palatal surfaces of the crowns. FINAL OUTCOME The finalized restorations showcase great details, crafted with CERABIEN™ MiLai internal stains and porcelains. The result are natural-looking restorations. An additional benefit of using zirconia as a restorative material is its excellent compatibility, which is evident in the healthy gingival conditions. Fig. 18. Restorations in place. Fig. 19. Natural-looking restorations in the patient’s mouth. Sep 23, 2025
Finishing Veneers with CERABIEN™ MiLai Lusters on KATANA™ Zirconia YML In part two of this veneer workflow, Roberto Rossi completes the restoration by applying CERABIEN™ MiLai lusters to the pre-stained and sintered KATANA™ Zirconia YML. Watch as he enhances surface texture, gloss, and lifelike detail through precise finishing techniques. With just a few simple steps, Roberto creates depth, dynamic light effects, and natural contours that rival real enamel. The process is intuitive and efficient, delivering a high-end finish—culminating in a final self-glazing fire for a polished, natural result. An intelligent solution for dental technicians seeking efficiency without compromising on aesthetics. Oct 23, 2025
How does Nondas Vlachopoulos baking schedule optimize aesthetic quality and mechanical performance? HOW TO OPTIMIZE ALL-CERAMIC RESTORATION BOTH AESTHETIC AND MECHANICAL? A homogeneous porcelain structure, a strong bond between framework and veneering layer and a natural play of colours: All those characteristics of a high-quality all-ceramic restoration are not only strongly dependent on manual skills of the dental technician, but also on ideal firing conditions. Only with a well maintained and properly functioning furnace and the right protocols, it is possible to obtain consistently great results in terms of aesthetics and function. This is true for all kinds of all-ceramic restorations consisting of a framework and a veneering layer: It applies to full layering with a classical anatomical framework design and a relatively thick layer of porcelain, as well as to various cut-back designs finished using the modern micro-layering technique. A material that belongs to the latter category of porcelains and is becoming increasingly popular among dental technicians worldwide is CERABIEN™ MiLai (Kuraray Noritake Dental Inc.). The set of low-fusing porcelains and internal stains has been specifically developed for micro-layering, and works well with different variants of lithium disilicate and zirconia. While the firing parameters provided by manufacturers like Kuraray Noritake Dental serve as reliable and thoroughly tested guidelines, experienced technicians often explore beyond these standards to achieve the highest possible aesthetic and functional outcomes. This is precisely what MDT Nondas Vlachopoulos has done with CERABIEN MiLai. Would you like to continue reading as a PDF? Please leave your email address below. Jan 7, 2026
Micro-layering with CERABIEN™ MiLai Case by Andreas Chatzimpatzakis A CONCEPT EVEN FOR AESTHETICALLY DEMANDING CASES The micro-layering technique is regarded as a more efficient, streamlined approach used as an alternative for full porcelain layering. It requires aesthetic, high-strength ceramics like lithium disilicate or zirconia as a base and – ideally – a set of porcelains specifically designed for reduced layer thicknesses that allows users to focus on imitating the characteristics of enamel. A high-quality example is CERABIEN™ MiLai (Kuraray Noritake Dental Inc.). Consisting of a set of internal stains and porcelains with a firing temperature of just 740 °C and a coefficient of thermal expansion in the range of 9.5~11.0×10-6/K (50 °C – 500 °C), this product works well on lithium disilicate and zirconia. Its aesthetic potential is surprisingly high: Depending on case-specific requirements, users are given the choice between maximum efficiency using a single-bake technique and maximum aesthetics achieved with more complex layering. The latter option is demonstrated below using the example of six maxillary anterior veneers. Fig. 1. Lithium disilicate frameworks (Amber Press) on the model. Fig. 2. CERABIEN™ MiLai Value Liner 1 applied to the framework. This porcelain is typically used on lithium disilicate for wash baking. Fig. 3. First build-up with CERABIEN™ MiLai CCV2 in the cervical section, … Fig. 4. … Value Liner 2, … Fig. 5. … Creamy Enamel in the middle area … Fig. 6. … and Tx used to add ultimate translucency. Fig. 7. Appearance of the restorations after the first bake. Fig. 8. Outcome of the internal staining procedure. Fig. 9. Application of CERABIEN™ MiLai LT1 for a standard translucency and opalescence effect, … Fig. 10. … E2, … Fig. 11. … a mixture of E2 and ELT1 (mixing ratio: 50:50) for translucency and brightness and along the marginal ridges, … Fig. 12. … Tx mixed with Royal Blue (mixing ratio 70:30) for a blueish translucency in the incisal area… Fig. 13. … as well as a final layer of LTx to add ultimate translucency and opalescence to the whole enamel surface. Fig. 14. Outcome of the third bake. Fig. 15. Cutback for the final layer of porcelain. Fig. 16. Final layer of CERABIEN™ MiLai added to the central and lateral incisors for translucency. Fig. 17. Situation after the fourth bake, grinding and use of a rubber polisher. Fig. 18. Outcome of the fifth bake (self-glaze). Fig. 19. Beauty shots … Fig. 20. … of the restorations … Fig. 21. … on the model. TRULY BEAUTIFUL OUTCOMES POSSIBLE This case example reveals that CERABIEN™ MiLai is much more than just a maximum-efficiency solution: With the current line-up of porcelains and internal stains, truly beautiful restorations can be produced. Hence, users are given high flexibility regarding not only the high-strength framework material they prefer, but also the effort and time they would like to invest. This makes CERABIEN™ MiLai a versatile porcelain system that meets many needs and covers a wide range of applications in the dental laboratory. Oct 14, 2025
Keeping it smart and simple: Micro-layering of implant supported reconstructions Case by Andreas Chatzimpatzakis Many modern, tooth-coloured dental materials enable us to achieve more with less. By using high-strength ceramics with a multi-layered colour structure and natural translucency, for example, the path to the desired outcomes involves fewer components, smaller layers and a reduced number of bakes. A possible streamlined procedure is illustrated below. The main materials used were KATANA™ Zirconia HTML PLUS for the screw-retained implant-supported superstructure and CERABIEN™ MiLai (both Kuraray Noritake Dental Inc.) for vestibular micro-layering. Fig. 1. Zirconia-based screw-retained implant-supported prosthesis after milling and carving to obtain a natural surface texture. Fig. 2. Restoration after sintering. To intensify the colour characteristic of the multi-layered blanks, the surface was treated with Esthetic Colorant (mainly in the incisal area and the gum parts). Fig. 3. Appearance after the application of CERABIEN™ MiLai SS Fluoro. Fig. 4. Restoration after the application of CERABIEN™ MiLai internal stains. They add some natural shading effects to the tooth and gum areas. Fig. 5. Restoration on the model after micro-layering. In the cervical area, CERABIEN™ MiLai LT1 was mainly used, while the middle and incisal areas were individualized with E2 and Tx, the latter adding a seamless gradient in translucency. For the gingiva, the choice fell on the tissue porcelains 1, 5 and 6. Fig. 6. Finished restoration on the model. Fig. 7. The micro-layer of porcelain has a brilliant effect. Fig. 8. The lifelike appearance is due to a smart combination of surface texturing … Fig. 9. … and micro-layering with a comprehensive set of internal stains plus porcelains. CONFIDENCE AND CONTROL Full ceramic layering can produce beautiful results, but can be quite complex and time-consuming. In times with limited availability of skilled personnel and high-performance materials being offered, it may be a valuable strategy to opt for micro-layering with CERABIEN™ MiLai whenever appropriate. The system provides precise control over the layering and shading procedure, so that highly aesthetic and functional outcomes are easily and confidently obtained. Nov 11, 2025
A new porcelain system for micro-layering Case by MDT Andreas Chatzimpatzakis and DDS Manousos Pissadakis ONE SOLUTION, MULTIPLE NEEDS COVERED The treatment of young patients with a dental condition that affects the appearance of multiple teeth – like enamel hypomineralisation or hyperplasia – is particularly challenging for the restorative team. Dental practitioners and technicians need to be aware of the fact that the condition often involves a life-long disease burden, which typically goes hand in hand with an immense treatment need and increasingly invasive measures required with advancing age. It is their task to make the situation as bearable as possible for patients by delivering treatment that is very well aligned to their specific aesthetic, functional and financial needs, both in the short and long term. Whenever all-ceramic restorations seem most appropriate, material and technique selection are particularly important: Protection of the affected teeth from extrinsic influences, the saving of sound tooth structure and the safeguarding of the long-term stability of the restorations are key to success. Depending on the aesthetic expectations of the patient, veneers made of zirconia or lithium disilicate, produced with a minimal vestibular cutback and finished using the micro-layering technique, are a great option. A prime example of an innovative porcelain system specifically developed for this technique is CERABIEN™ MiLai (Kuraray Noritake Dental Inc.). It includes a collection of internal stains and porcelains that fire at just 740 °C. With this low firing temperature and a coefficient of thermal expansion between 9.5~11.0×10-6/K (50 °C – 500 °C), this product is ideal for use with lithium disilicate and zirconia. In addition, it offers impressive aesthetic capabilities: Depending on the specific needs of each case, users can adjust the level of complexity and number of bakes. CASE EXAMPLE In the present case of a young female patient with hypomineralisation, it was decided to follow a straightforward approach to restore the maxillary teeth for the time being. For this purpose, we produced a wax-up and transferred it into the patient’s mouth in the form of a mock-up. Following guided tooth structure removal trough this mock-up, an impression was taken. The restorations were designed in full contour, pressed using lithium disilicate-based press ingots (Amber® Press LTW3, HASS Corp.) and cut back slightly in the vestibular area (reduction: 0.3 mm). The selected micro-layering system was applied according to the internal stain technique. The following CERABIEN™ MiLai Internal Stains were used: A little Red in the cervical, and Mamelon 2, Incisal Blue 1 and White in the incisal third. What followed was build-up with CERABIEN™ MiLai Porcelains Tx incisally and LTx proximally; some whitish lines were created with Value Liner 1. Then, I applied a mixture of E2 and ELT1 in the middle and LT1 in the cervical area. After the bake, the restorations were treated with green stones, sandpaper and rubber wheels to pre polish the surface. After glazing with CERABIEN™ ZR FC Paste Stain Clear Glaze, final polishing was carried out. The whole treatment procedure including tooth preparation, shade determination, veneer production and adhesive cementation is illustrated below. Fig. 1. Portrait of the patient prior to treatment. Fig. 2. Enamel defects in the maxilla and mandible. Fig. 3. Initial clinical situation in the maxilla with whitish-brown discolouration and composite restorations in need of replacement. Fig. 4. Mock-up in the patient’s mouth. Fig. 5. Labial reduction through the mock-up: The depth of tooth preparation is controlled by using a depth guide and by marking the created depth grooves with a colour marker. Fig. 6. Silicon index used to check the space created for the veneers. Fig. 7. Prepared teeth ready for impression taking and temporization. Fig. 8. Shade determination for the veneers. Fig. 9. Pressed lithium-disilicate restorations on the model. Fig. 10. Appearance of the restorations after internal staining. Fig. 11. Appearance of the teeth after build-up with CERABIEN™ MiLai Porcelain. Fig. 12. Final restorations on the model. Fig. 13. Adhesive cementation procedure carried out for two teeth at once: Isolated teeth and a perfectly dry working field. Fig. 14. Etching of the tooth structure with phosphoric etchant (K-ETCHANT Syringe, Kuraray Noritake Dental Inc.). Fig. 15. PANAVIA™ V5 Tooth Primer (Kuraray Noritake Dental Inc.) applied to the etched tooth surfaces. Fig. 16. Veneers – pre-treated with hydrofluoric acid and CLEARFIL™ Ceramic Primer Plus – filled with PANAVIA™ V5 Paste (Both from Kuraray Noritake Dental Inc.) and placed in the patient’s mouth. Fig. 17. Restorations after excess removal. Fig. 18. All eight restorations in place. Fig. 19. Treatment outcome after two weeks. Fig. 20. Portrait of the patient taken two weeks after treatment. CONCLUSION Repeated dental treatment, increasing invasiveness of the measures, often resulting in early tooth loss: To break the vicious cycle in young patients with enamel defects, it is important to carefully evaluate the treatment need and select the appropriate solutions. As dental technicians, we can contribute to long-term treatment success by using high quality materials and production techniques that allow us to create restorations that last. The presented material combination and the micro-layering technique are very well suited as they offer the required mechanical and optical properties for high aesthetics and durability. Plus, the risk of complications is low due to the high biocompatibility and the layer of porcelain limited to non-load-bearing areas. Dec 9, 2025
Micro-layering: a great concept for zirconia-based screw-retained implant-supported prostheses Case by Andreas Chatzimpatzakis For zirconia-based screw-retained implant-supported prostheses, diverse finishing concepts are available. Most of them are quite complex and time-consuming. A streamlined approach that brings efficiency into the finishing procedure without compromising aesthetics and function is micro-layering with CERABIEN™ MiLai (Kuraray Noritake Dental Inc.) on a zirconia superstructure with just a slight vestibular cutback. A possible technical procedure is demonstrated using the following case example. The patient was treated by prosthodontist Dr. Georgios Siavikis from Ioannina, Greece. Fig. 1. Occlusal view of an implant-supported overdenture made of KATANA™ Zirconia HTML PLUS (Kuraray Noritake Dental Inc.) for a male patient with an edentulous maxilla and a removable partial denture in the mandible. Fig. 2. Frontal view of the milled and sintered screw-retained implant-supported prosthesis. Fig. 3. Appearance after the application of CERABIEN™ MiLai SS Fluoro and internal stains to enhance the natural shading of the restoration in the tooth and gum areas. Fig. 4. Result of micro-layering with CERABIEN™ MiLai porcelains LT1 for the cervical as well as E2 and TX for the middle and incisal sections for a seamless gradient in translucency. For an optimal gingival harmony and match with the surrounding tissue, the tissue shades 1, 5 and 6 were applied. Fig. 5. The restoration after finishing. Fig. 6. The gingiva and tooth areas have a natural appearance … Fig. 7. … due to a natural colour, translucency and surface texture. Fig. 8. Intraoral harmony. PREDICTABLE OUTCOMES In this case, the use of an aesthetic, high-strength multi-layered zirconia was a true enabler of a streamlined finishing technique. As a convinced and frequent user of CERABIEN™ ZR, micro-layering with CERABIEN™ MiLai appeared to work flawlessly right from the start. The systems are perfectly aligned to each other, and as they are both based on synthetic feldspathic technology, they offer consistent material properties. These provide precise control over the layering and shading, thus supporting a highly aesthetic and well-integrated implant restoration. Dec 23, 2025
Two high-strength ceramics, one micro-layering system Case by DT Andreas Chatzimpatzakis AESTHETIC AND EFFICIENT SMILE MAKEOVER Most patients asking for a smile makeover desire custom solutions rather than an off-the-peg smile: Individual tooth shapes that fit their face and their character, an internal play of colours that matches their age and natural dentition. Modern dental materials allow us to deliver what they demand in many situations – usually at a reasonable price. For a long time, however, we have been facing challenges when combining cosmetic and medically indicated treatment – e.g. a smile makeover including the rehabilitation of a missing lateral incisor. A straightforward solution – using lithium disilicate veneers alongside a zirconia cantilever bridge, both finished with their respective porcelain systems – would have been complicated by potential differences in the final appearance. With CERABIEN™ MiLai (Kuraray Noritake Dental Inc.), a set of internal stains and porcelains designed for micro-layering, the situation is different: Suitable for micro-layering on zirconia and lithium disilicate, it supports its user ideally in creating a harmonious smile even when the two framework materials are combined. A NEW CUSTOM SMILE The following patient case is a perfect example: A female patient with a missing lateral incisor, multiple visible composite restorations in the anterior region and an enamel fracture at her incisal edge desired a smile makeover. The selected materials were Amber Press LT (HASS), shade A1, for four veneers on the central incisors and the left lateral incisor and canine (teeth # 11, 21, 22 and 23 according to the FDI notation) and KATANA™ Zirconia YML (Kuraray Noritake Dental Inc.), shade A2, for the planned cantilever bridge on the maxillary right canine, replacing the missing lateral incisor (teeth # 12 and 13). Fig. 1. Female patient with a missing maxillary lateral incisor and multiple composite restorations in the anterior area – a smile makeover is desired. Fig. 2. Patient with mock-up. Fig. 3. Minimally invasive preparation through the mock-up, which takes into account the minimum space required for the planned materials and restorations. Fig. 4. Teeth prepared for the all-ceramic restorations. Fig. 5. Occlusal view of the maxillary teeth after tooth preparation. Fig. 6. Full-contour veneers and cantilever bridge on the model. Fig. 7. Restorations after a cutback limited to the vestibular and incisal area. Fig. 8. CERABIEN™ MiLai LT1 is applied to the middle and cervical area of the zirconia cantilever bridge. Fig. 9. CERABIEN™ MiLai Value Liner 2... Fig. 10. … and Value Liner 1 applied to the incisal area of the central and lateral incisor restorations. Fig. 11. CERABIEN™ MiLai porcelain Creamy Enamel mixed with Value Liner 2 (70/30) added to the middle and cervical areas of the four lithium disilicate restorations to increase and control the value. Fig. 12. ... while E2 is added to the incisal area of both canines. Fig. 13. Restorations covered by a layer of Tx ... Fig. 14. ... and LTx. Fig. 15. Appearance of the restorations after the first bake. Fig. 16. Adding translucency and opalescence to the cervical area with LT1 and brightness to the ridges with Creamy Enamel. Fig. 17. Completion of the enamel surface with a cover layer of LTx, which is responsible for a high translucency and opalescence. Fig. 18. Result of the second bake. Fig. 19. Final restorations with a natural self-glaze effect on the model. Fig. 20. Final restorations with a natural self-glaze effect in the patient’s mouth. Fig. 21. Smooth optical integration of the restorations. Fig. 22. Beautiful treatment outcome. CONCLUSION With the described approach and selected materials, it was possible to create restorations with a natural shade, shape and texture. They matched not only the appearance of the remaining natural teeth, but also showed internal consistency across the selected framework materials. The technical procedure was quite straightforward and efficient, while the result speaks for itself. Special thanks to Dr. Kanellos Ioannis for the collaboration on this case and for kindly providing the pre- and post-treatment photographs that complemented it. Oct 16, 2026
A smooth path towards beautiful smiles Case by DT Vasilis Vasiliou MICRO-LAYERING WITH CERABIEN MiLai No matter whether young or old, male or female: Our patients deserve a beautiful smile that matches their adjacent teeth, their face, their character and their individual needs. To be able to produce beautiful restorations that change their life for the better, we (as dental technicians) have to observe closely – and to listen attentively to the stories they tell. ‘We have to observe closely – and to listen attentively to the stories our patients tell us.’– Vasilis Vasiliou – Mr Andreas is a perfect example. He presented in the dental office in need of a full-mouth rehabilitation and the wish to improve the aesthetics of his smile. He asked for an age-appropriate, natural restoration design. After careful observation and listening, I decided that the best way to restore his maxillary incisors would be with zirconia restorations. The plan was to mill the frameworks using low-value KATANA™ Zirconia YML, shade D3 (Kuraray Noritake Dental Inc.). To facilitate the integration of some natural characteristic effects, a framework design with a primarily vestibular cutback was selected. The finishing technique of choice was micro-layering with CERABIEN™ MiLai (Kuraray Noritake Dental Inc.), a porcelain designed specifically for this approach. Important steps in the finishing procedure were: Characterization of the milled zirconia with colouring liquids Pre-treatment of the sandblasted zirconia surfaces with SS Fluoro and Margin porcelain Internal staining with CERABIEN™ MiLai internal stains Application of CERABIEN™ MiLai luster porcelains LABORATORY WORKFLOW Zirconia splinted crowns were designed in full contour with the aid of the Leahu Library featuring tailored tooth designs (part of the Truedental Library available for exocad DentalCAD design software; Fig. 1), cut back merely in the vestibular area using the ‘calma’ reduction option (Fig. 2), and then milled and characterized with colouring liquids to optimize the chroma. Figure 3 shows the sintered frameworks on the model, Figure 4 the try-in in the patient’s mouth. As the fit and shape of the restorations turned out to be excellent, it was time to plan the internal staining and micro-layering procedure (Figs. 5 and 6), always trying to imitate nature as closely as possible. The tricky part is to use the available space wisely – the reason why a detailed layering sketch is useful even when in the context of micro-layering. Once the planned layering procedure had been put to practice (Figs. 7 to 10), the surface texture was finalized and the restorations were tried in again for an aesthetic evaluation. Finally, they were cemented with the adhesive resin cement PANAVIA™ V5 (Kuraray Noritake Dental Inc.). The beautiful treatment outcome is shown in Figure 11. Fig. 1. Computer-aided design of the zirconia frameworks: Splinted crows displayed in a transparent mode to show the abutment teeth. Fig. 2. Computer-aided design of the zirconia frameworks: Outer contour of the splinted crowns with a strongly elaborated surface texture and sufficient room for micro-layering. Fig. 3. Restorations after characterization with colouring liquids and sintering on the model. Fig. 4. Try-in of the restorations. Fig. 5. Layering sketch for the restorations: Internal staining. Fig. 6. Layering sketch for the restorations: Luster porcelain application. Fig. 7. Internal staining – specific characteristics elaborated for a natural depth effect. Fig. 8. Layering in the cervical and body areas. Fig. 9. Final layering with luster porcelains to complete the morphology. Fig. 10. Final restorations after surface finishing and polishing as well as glazing on the model. Fig. 11. Treatment outcome. CONCLUSION The patient was thoroughly satisfied with the treatment outcome and confident that his investment was well worth it. By tailoring my approach to his unique needs, carefully observing his teeth, smile, and facial expressions, and utilizing my extensive knowledge of materials, I was able to achieve this goal successfully. Nonetheless, I remain committed to continuous improvement by critically evaluating each restoration and seeking areas for enhancement. My dedication to growth, supported by exceptional mentors who share innovative techniques and insights, supports me in staying at the forefront of my field, striving at consistently delivering the best possible care. I am deeply grateful to Dr. Zinonas Evagorou for invaluable partnership and clinical expertise, which were instrumental in achieving this result. Feb 18, 2026
Micro-layering meets fixed implant-based prosthetics Case by DT Andreas Chatzimpatzakis and Dr Evi Lianou Selecting the right materials for a successful rehabilitation of edentulous jaws with fixed implant-based prostheses can be quite challenging. High strength and stability are needed to securely connect the implants, biocompatibility is a must and the functional, aesthetic and financial expectations of the patient need to be respected. Experience shows that – in many situations – the combination of a titanium bar with a zirconia framework finished using the micro-layering technique is a great option. This material combination and approach meets the demands mentioned, while supporting efficient procedures and aesthetic outcomes. In the present case, a 53-year-old male patient with a history of periodontal disease presented in the dental office of Dr Evi Lianou (Dental Clinic, Lamia, Greece). Due to a poor prognosis of the remaining teeth, it was planned to extract them. As a removable full denture was not an option for the patient, the treatment plan included the insertion of four implants in the mandible and six in the maxilla, followed by a healing phase and subsequent definitive rehabilitation with screw-retained, titanium bar-based zirconia superstructures finished by micro-layering. The following figures and captions describe the technical procedure. Fig. 1. Initial clinical situation showing several remaining teeth with a poor prognosis. Fig. 2. Screw-retained titanium bar for the mandible. Fig. 3. Screw-retained titanium bar for the maxilla. Fig. 4. Mandibular restoration: Milled framework made of KATANA™ Zirconia HTML PLUS (Kuraray Noritake Dental Inc.) with a minimal (0.3 mm) vestibular cutback placed only on the six anterior teeth. Fig. 5. Maxillary restoration: Milled framework made of KATANA™ Zirconia HTML PLUS with a minimal vestibular cutback (0.3 mm) placed only on the six anterior teeth. Fig. 6. Mandibular restoration, 33-43 internal staining with CERABIEN™ MiLai Internal Stains (Kuraray Noritake Dental Inc.). 34-37 & 44-47 External characterization with CERABIEN™ ZR FC Paste Stain. Fig. 7. Maxillary restoration 13-23 internal staining with CERABIEN™ MiLai Internal Stains. 14-17, 24-27 External characterization with CERABIEN™ ZR FC Paste Stain. Fig. 8. Mandibular and maxillary restorations on the model: Additional internal staining to the anterior. Posterior teeth were completed with CERABIEN™ ZR FC Paste Stain. Fig. 9. Mandibular restoration after the application of CERABIEN™ MiLai Porcelains LT1 mixed with CCV2 (ratio 50:50) for the cervical and Tx for the incisal. Fig. 10. Maxillary restoration after the application of CERABIEN™ MiLai Porcelains LT1 mixed with CCV2 (ratio 50:50) for the cervical and Tx for the incisal third. Fig. 11. Mandibular restoration after the bake, showing some typical characteristics of aged teeth. Fig. 12. Maxillary restoration after the bake, showing some typical characteristics of aged teeth. Fig. 13. Mandibular restoration with applied tissue porcelains and corrections in the tooth area. Fig. 14. Maxillary restoration with applied tissue porcelains and corrections in the tooth area. Fig. 15. Mandibular restoration after finishing glazing and polishing. Fig. 16. Maxillary restoration after finishing glazing and polishing. Fig. 17. Final restorations on the model. Fig. 18. Final restorations in the patient’s mouth. Fig. 19. New smile of the patient. Fig. 20. Patient with new fixed dental prostheses. CONCLUSION The described material combination and technique allows for efficient workflows, while supporting aesthetic, durable treatment outcomes. With functional surfaces designed in plain, polished zirconia and just a tiny layer of porcelain in the vestibular region, the restorations are made to last. Moreover, the selected framework material and porcelain system are a perfect match. The chosen porcelain system works well with other zirconia brands and even with lithium disilicate. It can be used with or without internal stains, making it a versatile tool suitable for a wide range of applications, patient needs, and aesthetic demands. Oct 16, 2026
Biomimetics versus patient demands - finding the perfect balance INTRODUCTION Patient demands and expectations have never been as concrete as in this day and age: Influenced by role models on social media and new aesthetic standards, our patients ask for brighter smiles or for restorations with specific tooth forms rather than demanding a perfect copy of nature. For us dental technicians, the challenge lies in finding a perfect balance between fulfilling these demands and respecting established biomimetics-inspired principles of aesthetics and function. To accomplish this task, we need to know which principles need to be respected and where there is room for creativity. At the same time, it is essential to be well-informed about the latest technological advancements and developments in dental materials to be able to select the most appropriate restorative approaches. Only by understanding the selected materials and technological tools very well, will we be able to exploit their potential and deliver the best possible restorative solution. To sum up, we need to keep one foot in the boat of science and the other in the boat of art. Only by balancing both can we navigate the rapid advancements in the field effectively - ensuring they serve patients’ best interests while avoiding practices that lack purpose or meaning. The challenge lies in finding a perfect balance between fulfilling the patient‘s demands and respecting established biomimetics-inspired principles of aesthetics and function. MATERIAL CHOICES Our favored framework materials for the production of aesthetic anterior restorations include KATANA™ Zirconia UTML, KATANA™ Zirconia STML discs (both Kuraray Noritake Dental Inc.) and lithium disilicate-based press ingots Amber® Press (HASS). These high-strength ceramics are ideal for fulfilling the aesthetic and functional demands of anterior restorations. Their balanced optical properties allow for the creation of lifelike restorations. Their physical and mechanical properties, on the other hand, are responsible for stability during all clinical steps from try-in to permanent placement, proven bonding ability and a certain error tolerance: Minor adjustments or modifications are possible without the risk of inducing cracks or dimensional changes when firing repeatedly. Finally, both materials are digital workflow compatible, which means that procedures are quick, mock-up, temporary restoration and definitive restoration easily aligned, and remakes facilitated. The restorations are usually designed in full contour; a labial cutback of 0.3 to 0.5 mm creates sufficient space for the veneering porcelain. The preferred layering approach is micro-layering combined with the internal live stain technique, which offers the benefits of a controlled procedure and predictable, highly aesthetic outcomes with brilliant depth effects in short time. A layering material that precisely meets our needs regarding the preferred approach and is perfectly compatible with both, lithium disilicate and zirconia, is CERABIEN™ MiLai (Kuraray Noritake Dental Inc.). The following two case reports are used to illustrate how this material combines with the different framework materials, revealing further benefits of the selected ceramics and techniques. CASE #01 LITHIUM DISILICATE VENEERS This 36-year-old female patient wanted to replace her bonded composite veneers. She expressed the demand for a brighter smile with a bleached color (NW 0.5) selected for her six maxillary anterior teeth and first premolars. However, she wanted the tooth preparation for this treatment to be as minimally invasive as possible. In addition, she specifically requested that the teeth be square in form, with the lateral incisors the same length as the central incisors and the incisal edges straight, without rounded corners – clearly influenced by modern aesthetic standards. We explained our concerns regarding potential aesthetic and functional issues that might necessitate further intervention or adjustments, but she remained firm in her choices. FROM DESIGN TO PRESSED FRAMEWORK In line with the patient’s demands, it was planned to restore her maxillary teeth from first premolar to first premolar with lithium disilicate veneers (Amber® Press HT in the shade W2), which would allow for the desired minimally invasive preparations and bright appearance. Following tooth preparation, an analog impression was taken and sent to our laboratory. After the production of the model, the case was digitalized for the virtual designing of the veneers. In order to create space for the porcelain, the labial surfaces of the full-contour restorations were reduced by 0.3 mm with the software (exocad® DentalCAD, Figs. 1 and 2). The frameworks were then milled in wax and pressed in Amber® Press HT W2 (Figs. 3 and 4). Sprues were cut and the surfaces of the veneer frameworks processed with a Diagen-Turbo-Grinder Ø 3,5 x 11 mm Cone and Wheel. Would you like to continue reading as a PDF? Please leave your email address below. Apr 8, 2026
CERABIEN MiLai MICRO LAYERING KIT (160 g) Tx (10 g)ELT1 (10 g)LTx (10 g)LT1 (10 g)LT Super Gray (10 g)LT Royal Blue (10 g)Aqua Blue 2 (10 g)Creamy Enamel (10 g)E2 (10 g)CCV-2 (10 g)Tissue 1 (10 g)Tissue 4 (10 g)Tissue 5 (10 g)Tissue 6 (10 g)Value Liner 1 (10 g)Value Liner 2 (10 g) - + Add to Cart
CERABIEN MiLai INTERNAL STAIN KIT (45 g) White (3 g)Gray (3 g)Incisal Blue 1 (3 g)Incisal Blue 2 (3 g)Blue (3 g)Yellow (3 g)Mamelon Orange 2 (3 g)Cervical 2 (3 g)Salmon Pink (3 g)Tissue Pink (3 g)Tissue Red (3 g)A+ (3 g)B+ (3 g)Fluoro (3 g)Bright (3 g)Internal Stain LIQUID (10 ml)COLOUR GUIDE - + Add to Cart
CERABIEN MiLai ADVANCED LAYERING KIT (200 g) OBXW (10 g)OBA1 (10 g)OBA3 (10 g)OBB1 (10 g)XWB (10 g)A1B (10 g)A3B (10 g)B1B (10 g)B3B (10 g)C2B (10 g)D2B (10 g)E1 (10 g)SILKY E2 (10 g)CCV-1 (10 g)CCV-3 (10 g)Fluoro Mamelon 1 (10 g)Fluoro Mamelon 2 (10 g)LT0 (10 g)ELT2 (10 g)LT CORAL (10 g) - + Add to Cart
CERABIEN MiLai POWDER STARTER KIT (85 g) CCV-2 (10 g)Value Liner 2 (10 g)E2 (10 g)LT0 (10 g)LT1 (10 g)Aqua Blue 2 (10 g)Creamy Enamel (10 g)IS Incisal Blue 1 (3 g)IS Mamelon Orange 2 (3 g)IS Cervical 2 (3 g)IS A+ (3 g)IS Bright (3 g) - + Add to Cart