429 Too Many Requests

Case report by Dr Mediha Isikver

Tooth fractures and secondary caries are frequently observed in posterior teeth, often resulting from occlusal stress, restoration failure, or secondary bacterial infiltration. These conditions compromise tooth integrity, function, and aesthetics. With advancements in adhesive dentistry, minimally invasive and durable restorative solutions have become achievable. Material selection plays a critical role in the success of composite restorations, influencing marginal adaptation, wear resistance, and patient satisfaction. This case report describes the step-by-step clinical management of a fractured and secondary carious permanent molar restored using materials from Kuraray Noritake Dental Inc.

CASE PRESENTATION

A 32-year-old female patient presented to the clinic with sensitivity and discomfort in the upper left posterior region. Clinical examination revealed a distal wall fracture on tooth #26 (maxillary left first molar) with a secondary carious lesion extending subgingivally. Radiographic evaluation confirmed the absence of periapical pathology. Adjacent teeth (#25 and #27) showed early carious activity, but the patient opted for the restoration of tooth #26 only. The tooth was asymptomatic to percussion and showed normal vitality on pulp testing.

Fig. 1. Initial clinical view of tooth #26 under rubber dam isolation.

TREATMENT PROTOCOL

1. Isolation and caries removal: The tooth was isolated with rubber dam. The existing defective restoration and carious tissue were carefully removed using tungsten carbide burs and a slow-speed handpiece.
2. Surface cleaning: After preparation, KATANA™ Cleaner was applied to remove contaminants and optimize bonding surface quality.
3. Bonding procedure: A single-step, self-etch adhesive, CLEARFIL™ Universal Bond Quick 2, was applied to both enamel and dentin following the protocol recommended by the manufacturer.
4. Restorative phase: The deep and undercut areas were resin coated with CLEARFIL MAJESTY™ ES Flow Universal Low (U shade), ensuring adaptation and stress relief in undercut regions. The remaining cavity was restored incrementally using CLEARFIL MAJESTY™ ES-2 Universal (U shade) paste-type composite, with each 2 mm layer light-cured for 20 seconds.

Fig. 2. Clinical view of tooth #26 after removal of the defective restoration and carious tissue.

Fig. 3. Application of KATANA™ Cleaner to remove contaminants and optimize bonding surface quality after preparation.

Fig. 4. Selective enamel etching performed on tooth #26.

Fig. 5. CLEARFIL™ Universal Bond Quick 2 applied to both enamel and dentin following the manufacturer’s recommended protocol.

Fig. 6. Resin coating with CLEARFIL MAJESTY™ ES Flow Universal Low (U shade).

Fig. 7. Reconstruction of the mesial and distal walls with CLEARFIL MAJESTY™ ES-2 Universal (U shade) composite.

Fig. 8. Incremental build-up of cusps and occlusal anatomy using CLEARFIL MAJESTY™ ES-2 Universal composite, refined with a brush for contour adjustment.

Fig. 9. Initial finishing of the composite restoration performed with darkcoloured TWIST™ DIA for Composite (medium) rubber points to refine surface texture and anatomy.

Fig. 10. Final polishing performed with light-coloured TWIST™ DIA for Composite (fine) rubber points to achieve a highgloss, smooth surface.

FINAL SITUATION

Fig. 11. Final view of the restoration after occlusal adjustment and polishing.

CONCLUSION

This case demonstrates that adhesive and restorative systems from Kuraray Noritake Dental Inc. offer a reliable, efficient and effective approach for treating fractured and secondary carious posterior teeth. The integration of self-etch adhesives and high performance composites contributes to durable and aesthetically pleasing restorations. Continuous follow-up is essential to evaluate the long-term clinical behaviour of these materials.

Dentist:

MEDIHA ISIKVER

Dr Mediha Isikver is a graduate of the Ege University Faculty of Dentistry and the co-founder of Klinik M in Istanbul, Turkey. She focuses her professional practice on aesthetic and restorative dentistry, with particular expertise in composite laminate layering, porcelain laminates, and smile design. Believing that every smile tells its own story, she aims to create personalized aesthetic transformations that blend natural harmony with artistic detail.

Case by Dr. Onur Alp Yünük

COMBINING HIGH-PERFORMANCE TOOLS AND MATERIALS FOR A PREDICTABLE OUTCOME

Direct composite restorations are a high-quality treatment option even when large amounts of tooth structure need to be replaced. This is due to recent advancements in resin composite materials and adhesive technology. By selecting appropriate materials and layering techniques combined with modern digital tools for colour difference evaluation, it is possible to predictably produce highly aesthetic outcomes, as demonstrated in the following case example.

THE CHALLENGE

A young male patient presented to our clinic requesting the replacement of his existing composite restorations on his maxillary incisors (teeth #12 and #11 according to the FDI notation). Clinical examination revealed extensive restoration loss on the lateral incisor. Furthermore, anatomical irregularities, discolouration, and loss of surface gloss were observed on tooth #11. The adjacent central incisor exhibited similar issues regarding colour and surface polish.

In consultation with the patient, it was decided to replace the existing restorations using a modern composite material specifically developed for dual-shade layering – CLEARFIL MAJESTY™ ES-2 Premium (Kuraray Noritake Dental Inc.). For an exact shade analysis, photographs were taken with and without a cross-polarized filter (Figs. 1 to 4).

Fig. 1. Frontal view of the teeth with extensive restoration loss on the maxillary left lateral incisor.

Fig. 2. Cross-polarized photograph of the teeth allowing for a detailed analysis of the shade irregularities.

Fig. 3. Lateral view of the teeth.

Fig. 4. Lateral view – cross-polarized photograph.

THE SOLUTION

Following removal of the existing restorations, rubber dam was placed for working field isolation. A self-etching adhesive (CLEARFIL™ SE Bond 2, Kuraray Noritake Dental Inc.) was applied in the selective enamel etching mode before establishing the palatal shell using CLEARFIL MAJESTY™ ES-2 Premium in the shade A1E (Figs. 5 and 6). The mamelon structures were reconstructed with CLEARFIL MAJESTY™ ES-2 Premium in the shade A1D, while the translucent shade Blue was applied to the opalescent zone. Finally, yellow and white tints were used for characterization. Fig. 7 illustrates the appearance before, Fig. 8 after finishing and polishing.

Fig. 5. Palatal shell established with the enamel shade A1E of the selected composite.

Fig. 6. Lateral view of the teeth during the restoration procedure.

Fig. 7. Restoration before finishing and polishing.

Fig. 8. Appearance of the restorations after finishing and polishing.

THE OUTCOME

To evaluate the final colour integration, another photograph was taken with a cross-polarized filter, holding a grey reference card in place for calibration (Figs. 9 and 10). The lateral view of the restored teeth (Fig. 11) reveals that not only the right colour combination, but also a natural surface texture is required for a highly aesthetic outcome.

Fig. 9. Frontal view of the restored teeth taken with a cross-polarized filter.

Fig. 10. Gray reference card calibration and the resulting L*a*b* coordinates of the restoration.

Fig. 11. Lateral view of the restored teeth stressing the importance of surface texture.

DISCUSSION AND CONCLUSION

Observation, supported by modern tools for photography and image analysis (like polarized filters and L*a*b* coordinates), is an important skill needed for the lifelike reconstruction of teeth with direct composite materials. By combining this skill with a high-performance composite system that offers fixed shade combinations and innovative light diffusion technology for a nice blend-in with the surrounding tooth structure, creating beautiful restorations becomes a predictable business.

In the case presented, the patient was very satisfied with the outcome in terms of aesthetics and function. At regular recalls, the quality of the restorations is checked – they still offer a very nice functional and aesthetic integration.

Dentist:

ONUR ALP YÜNÜK

Dr. Onur Alp Yünük completed both his undergraduate and doctoral education at Istanbul University. He currently serves as an Assistant Professor in the Department of Restorative Dentistry at the Istinye University Faculty of Dentistry. His work primarily focuses on direct composite restorations of anterior teeth and on polychromatic layering systems.

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. 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.

Dental Technician:

VASILIS VASILIOU

Vasilis Vasiliou was born in Nicosia, Cyprus, and graduated from the Technical School for Dental Technicians in Athens in 2004. He has furthered his education by attending several advanced seminars led by mentors and experts in the field, such as Ilias Psarris and Nondas Vlachopoulos.

Throughout his career, Vasilis has made significant contributions to the dental community, including presenting at various conferences in Greece and publishing articles in Greek dental magazines. Since 2020, he has been a key opinion leader for MPF Brush Company and, since 2022, a HASS Ambassador.

Vasilis has been an active member of the International Team for Implantology (ITI) since 2019.

Together with his father, Vasilis runs a successful dental laboratory in Nicosia, specializing in all-ceramic and implant restorations. His extensive experience and commitment to excellence have established him as a respected professional in his field.

Case by Dr. Michał Jaczewski

FLOWABLE INJECTION TECHNIQUE

What are the most important properties of a flowable composite used for the flowable injection technique? Personal experience shows that balanced optical properties are essential, with an appropriate translucency, blend-in ability and surface gloss leading the way. However, the mechanical properties are also important, not least because the restorative material will be in direct contact with the antagonist teeth. And finally, handling properties are essential: The right level of flowability is needed for proper injection, while a void-free application is required for an intact, stain-resistant surface.

For the last seven years, CLEARFIL MAJESTY™ ES Flow Low (Kuraray Noritake Dental Inc.) has been my go-to flowable composite for the flowable injection technique. Its level of flowability is ideal for the technique in the anterior and posterior region. Whenever a lower flowability is needed, it is possible to switch to the Super Low variant. Moreover, I like the shade offering, which – together with the superior polishability of the material – leads to natural aesthetics. Finally, its mechanical properties are so good that the product is approved for a wide indication range without load limitations.

When the company announced the introduction of CLEARFIL MAJESTY™ ES Flow Universal, which comes in just two universal shades and two different levels of flowability (Low and Super Low), I immediately decided to give it a try: The prospect of balanced properties I am already familiar with, combined with a simplified shade selection sounded very promising. So far, the new product comes up to my expectations: The following case example reveals the simplicity of the procedure and the beauty of the results. The patient presented during orthodontic (aligner) treatment for a shape correction in the anterior region due to wear of the incisal edge.

Fig. 1. Initial clinical situation: Patient in need of a shape correction in the maxillary incisor region.

Fig. 2. Application of CLEARFIL™ Universal Bond Quick 2 (Kuraray Noritake Dental Inc.) to the enamel of a central incisor, which has been merely roughened by air abrasion with aluminium oxide (50 μm at low pressure) followed by etching with a phosphoric acid etchant.

Fig. 3. Transparent silicon index placed in the mouth and CLEARFIL MAJESTY ES Flow Universal Low (U shade) already injected in the position of the maxillary right central incisor.

Fig. 4. Shape correction on the maxillary right central incisor completed.

Fig. 5. Situation after finishing and polishing of the incisor restorations.

Fig. 6. Nice shade match leading to a smooth blend-in with the surrounding natural tooth structure.

Fig. 7. Immediate treatment outcome supporting an improvement of the smile aesthetics and hence, the patient‘s quality of life during aligner therapy.

RESULTS THAT SPEAK FOR THEMSELVES

Like its related product CLEARFIL MAJESTY ES Flow, the universal-shade version CLEARFIL MAJESTY ES Flow Universal offers properties which are – from a personal perspective – ideal for the flowable injection technique. The shade-matching properties are astonishing; the translucency is quite high when placed in thin layers (so that enamel is very well imitated), and the polishability is as good as that of CLEARFIL MAJESTY ES Flow. For virtually effortless, bubble-free injection, the product comes in a nicely designed syringe. And last but not least, the product’s mechanical properties provide peace of mind even in the posterior region.

Dentist:

MICHAŁ JACZEWSKI

Michał Jaczewski graduated from Wroclaw Medical University in 2006 and today runs his private practice in the city of Legnica, Poland. He specializes in minimally invasive dentistry and digital dentistry and is the founder of the Biofunctional School of Occlusion. Here he lectures and runs workshops with focus on full comprehensive patient treatments.

Case by Dt. Koray Kendir, DDS, Turkey (İzmir)

ABSTRACT

This clinical case report presents a posterior direct composite restoration performed using Kuraray Noritake Dental Inc.’s “Universal Excellence” product concept. A universal adhesive (CLEARFIL™ Universal Bond Quick 2) and a highly filled, universal-shade flowable composite (CLEARFIL MAJESTY™ ES Flow Universal) were utilized to achieve both simplicity and predictability. Step-by-step documentation demonstrates isolation, cavity preparation, deep margin elevation, adhesive protocol, and final restoration.

CASE DESCRIPTION

A 38-year-old female patient presented with complaints of interdental bleeding and cold sensitivity between her maxillary left canine and first premolar (teeth #23 and #24, FDI notation). Clinical examination revealed an open margin and secondary caries at the gingival floor of the existing restoration on tooth #23. After rubber dam isolation, the stepwise treatment procedure was initiated.

CLINICAL PROCEDURE

Step 1. Tooth #23 exhibited an open gingival margin and caries (Fig. 1).

Step 2. After enamel removal, caries was excavated down to the gingival level. The lesion on tooth #24 was observed to extend subgingivally (Fig. 2).

Step 3. After complete caries excavation and cavity refinement, the need for deep margin elevation (DME) on tooth #24 became evident (Fig. 3).

Step 4. Deep margin elevation (DME) was performed on tooth #24 using a custom sectional wedge. First, selective etching and CLEARFIL™ Universal Bond Quick 2 were applied, followed by the placement of CLEARFIL MAJESTY™ ES Flow Universal (Super Low) (Figs. 4 to 6).

Step 5. After completion of the DME (deep margin elevation), appropriate matrix bands were placed, followed by a direct restoration of teeth #23 and #24 with CLEARFIL MAJESTY™ ES Flow Universal (Super Low) (Figs. 7 to 9). Thanks to the material’s easy handling, shade adaptation, and excellent polishability, this challenging DME case was successfully and efficiently managed.

The treatment outcome is shown in Figures 10 and 11.

Fig. 1. Preoperative view under rubber dam isolation.

Fig. 2. Clinical situation after caries excavation.

Fig. 3. Refined cavities with a deep margin on the premolar.

Fig. 4. Custom wedge placed to elevate the margin.

Fig. 5. Buccal view of the teeth after deep margin elevation with universal products.

Fig. 6. Occlusal view of the teeth after deep margin elevation with universal products.

Fig. 7. Placement of a sectional matrix.

Fig. 8. Buccal view of the teeth restored with a universal-shade flowable composite with super low flowability.

Fig. 9. Occlusal view of the teeth restored with a universal-shade flowable composite.

Fig. 10. Occlusal view of the final restorations of teeth #23 and #24, showing colour blending, anatomical form, and surface gloss.

Fig. 11. Buccal view of the final restorations of teeth #23 and #24, showing colour blending, anatomical form, and surface gloss.

DISCUSSION

Universal adhesives and modern flowable composites simplify posterior direct restorations by reducing technique sensitivity while providing for durable outcomes. In this case, CLEARFIL™ Universal Bond Quick 2 provided strong adhesion with minimal application time. The universal flowable composite demonstrated excellent adaptability, polishability, and durability. Even with a subgingival margin requiring DME, a streamlined approach was achieved without compromising quality.

CONCLUSION

The combination of CLEARFIL™ Universal Bond Quick 2 and CLEARFIL MAJESTY™ ES Flow Universal allows clinicians to perform predictable, efficient posterior restorations. Their universal applicability and handling properties align with the “Universal Excellence” concept, supporting simplified, yet reliable daily practice.

Ethics & Disclosure

All procedures were performed in accordance with standard dental practice. The patient provided informed consent for treatment and publication of anonymized clinical images. Author collaborates with Kuraray Noritake Dental Inc. as an advisor; content reflects clinical experience.

Dentist:

KORAY KENDIR

Dt. Koray Kendir is a graduate of Hacettepe University Faculty of Dentistry and the co-founder of a private dental clinic in İzmir. He specializes in digital dentistry, smile design, and computer-aided restorative treatments. Known for his innovative approach, Dr. Kendir is a frequent speaker at national dental congresses and serves as an advisor to several dental companies.

Case by Dt. Koray Kendir, DDS, Turkey (İzmir)

LAYERED COMPOSITE TECHNIQUE WITH A1D AND A1E SHADES

Single-shade composite layering techniques are becoming increasingly popular among dental practitioners due to their simplicity. Used in combination with modern composite materials that offer improved optical properties, these techniques lead to aesthetic outcomes in many clinical situations. However, when it comes to restoring anterior teeth with pronounced enamel translucencies and a vivid internal colour structure, playing with two shades and opacities of composite may be the better option.

Luckily, a dual-shade technique does not have to be complicated, either: With CLEARFIL MAJESTY™ ES-2 Premium (Kuraray Noritake Dental Inc.), dental practitioners have a material at their disposal that supports simplified procedures and predictable outcomes as well. It comes with fixed shade combinations of Dentin and Enamel, each of which covers three VITA shades. Consequently, the need for complicated shade schemes and colour combination formulas is eliminated.

The following case reveals how to use it in the context of an anterior restoration procedure.

STEP 1 – ISOLATION AND INITIAL EVALUATION

Rubber dam isolation was performed to provide for optimal moisture control and field visibility. Initial photographs were taken to document the preoperative condition. The defects on teeth #22 (mesial), #21 (distal), #11 (distal), and #12 (mesial, FDI notation) were evaluated under dry conditions.

STEP 2 – SHADE SELECTION

Shade selection was performed under rubber dam isolation using CLEARFIL MAJESTY™ ES-2 Premium Shade Guide (Kuraray Noritake Dental Inc.). The selected shades were A1D (dentin) and A1E (enamel) from CLEARFIL MAJESTY™ ES-2 Premium, providing optimal blending with the surrounding natural teeth.

STEP 3 – CAVITY PREPARATION

After completing the shade selection, carious tissue was thoroughly removed from teeth #22, #21, #11, and #12. Conservative Class III cavity were prepared with a focus on maintaining maximum enamel support and preserving tooth structure. Palatal and buccal views were documented to demonstrate the cavity extension and cleanliness of the preparation.

STEP 4 – ETCHING

Selective etching was performed using K-ETCHANT Syringe (Kuraray Noritake Dental Inc.) on the enamel margins of the prepared cavities. Adjacent teeth were protected using PTFE tape to prevent unintended etching. This step provides for optimal micromechanical retention and enhances the bond strength of the adhesive system.

STEP 5 – ADHESIVE APPLICATION

CLEARFIL™ SE BOND 2 (Kuraray Noritake Dental Inc.) was used as the adhesive system. Following the manufacturer’s protocol, the primer was first applied to all cavity surfaces, left undisturbed for 20 seconds to allow adequate penetration, and then gently dried with air. The bond was then applied, air-thinned, and light cured. This two-step self-etch adhesive provides reliable adhesion and long-term stability in direct restorations.

STEP 6 – LIGHT POLYMERIZATION

Following the adhesive application, each surface was light-cured using a high power LED curing unit. The tip of the curing device was positioned as close as possible to the bonding surfaces to enable optimal polymerization of the adhesive layer.

STEP 7 – COMPOSITE RESTORATION AND FINISHING

The restorations were completed using a multilayering approach. Palatal shells were initially built with A1E (enamel shade) to establish the outline form. The dentin body was reconstructed with A1D, followed by a final enamel layer (A1E) to achieve natural translucency and surface texture. After finishing the contouring, polishing was performed to achieve a lifelike gloss and seamless integration with the surrounding dentition.

Dentist:

KORAY KENDIR

Dt. Koray Kendir is a graduate of Hacettepe University Faculty of Dentistry and the co-founder of a private dental clinic in İzmir. He specializes in digital dentistry, smile design, and computer-aided restorative treatments. Known for his innovative approach, Dr. Kendir is a frequent speaker at national dental congresses and serves as an advisor to several dental companies.

Case by Dr. Julien Molia

JA, DET FUNGERER!

Blant mange tannleger er det en utbredt oppfatning at flytende kompositter hovedsakelig egner seg som basemateriale under sterkere pakkbare kompositter og indirekte restaureringer, eller som en midlertidig løsning. Mange antar at bruksområdet er begrenset grunnet svakere mekaniske egenskaper.

EN NY GENERASJON AV FLYTENDE KOMPOSITT 

Heldigvis stemmer ikke dette lenger: Flere nye generasjoner av flytende kompositter – som CLEARFIL MAJESTY™ ES Flow og CLEARFIL MAJESTY™ ES Flow Universal (begge fra Kuraray Noritake Dental Inc.) – har mekaniske egenskaper som er  på nivå med mange pakkbare alternativer. Dette utvider bruksområdene betydelig. For eksempel har CLEARFIL MAJESTY™  ES Flow Universal en høy fyllstoffmengde på 75–78 vektprosent, bøyningsstyrke på over 150 MPa og trykkstyrke på over 370 MPa, ifølge produsenten. Takket være disse egenskapene er den egnet som en varig restaurering, selv i belastede områder som okklusjonsflater i molarområdet.

I tillegg finnes kompositten i to ulike viskositeter – LOW og SUPER LOW – for å tilpasses individuelle preferanser og indikasjoner. Den tilbys i kun to nyanser (universal og universal mørk), noe som gir et enkelt og intuitivt fargevalg, selv i fronten. Dette er muliggjort gjennom en kombinasjon av fargetilpasningsteknologier, inkludert optimalisert lysdiffusjon og emaljelignende translucens.

Det følgende kliniske eksempelelet viser hvordan CLEARFIL MAJESTY™ ES Flow Universal gjør livet mitt enklere i posterior restaureringsprosedyrer.  

KLINISK EXAMPLE

Pasienten kom for utskifting av to gamle amalgamrestaureringer i underkjevens høyre molarer (tenner 46 og 47 i henhold til FDI-notasjon) (Fig. 1). For å oppnå god tilpasning og enkel utfylling ble det valgt å bruke CLEARFIL MAJESTY™ ES Flow Universal LOW som eneste restaureringsmateriale. Tennenes plassering gjorde fargevalget enkelt – nyansen U (universal) fungerer optimalt i alle posteriore restaureringer.

Amalgamfyllingene ble fjernet, og kariøst vev ble ekskavert med fokus på maksimal bevaring av sunt tannvev (Fig. 2 og 3).  En selektiv emaljeetsing ble utført, etterfulgt av adhesivbehandling med CLEARFIL™ Universal Bond Quick 2. Deretter ble CLEARFIL MAJESTY™ ES Flow Universal LOW i nyanse U applisert (Fig. 4). Takket være den innovative sprøyteutformingen ble materialet påført nesten uten luftbobler. I tråd med produsentens retningslinjer ble lagtykkelsen holdt under 2 mm for å sikre full herding (Fig. 5 og 6), noe som er avgjørende for restaureringens langtidsprognose. Hvert lag herdes i 10–20 sekunder, avhengig av herdelampen, før neste lag appliseres. Som vist i Fig. 7, gir den lave viskositeten mulighet for enkel modellering av okklusal morfologi. For mer detaljert utforming kan varianten SUPER LOW være et alternativ. Det tok kun noen sekunder å polere restaureringene til høyglans (Fig. 8).

Fig. 1: To amalgamfyllinger som skal erstattes 

Fig. 2: Etter fjerning av eksisterende amalgam .

Fig. 3: Typisk amalgammisfarging synlig i bunn av kavitet 

Fig. 4: Fyllingsprosedyre: Applisering av det første laget av flytende kompositt

Fig. 5:  Andre molar ferdig fylt, første molar trenger et nytt lag 

Fig. 6: Fylling fullført. 

Fig. 7: Fin morfologi og god fargetilpasning 

Fig. 8: Endelig resultat etter fjerning av kofferdam. Restaureringene smelter naturlig inn i omgivende tannsubstans - med farge og overflateglans.

BRUKERVENNLIG ALTERNATIV FOR PAKKBARE KOMPOSITTER

Spesielt i krevende områder i munnen kan flytende kompositt med balanserte mekaniske egenskaper være et godt alternativ til pakkbare materialer. Egenskaper som avansert fargetilpasning, tilnærmet porefri påføring, enkel adaptering og modellering, samt rask polering, gjør hverdagen enklere for tannlegen. Mange antar at bruken er begrenset på grunn av svakere mekaniske egenskaper.

Dentist:

JULIEN MOLIA

Dr. Julien Molia ble uteksaminert i 2008 med en avhandling om dataassistert implantologi. Han etablerte en allmenn tannlegepraksis i Saint-Jean-de-Luz, hvor han har spesialisert seg på implantatkirurgi og rekonstruksjon av kjeven. I 2017 fullførte han en ny universitetsgrad innen implantologi for å oppdatere og utdype sin kompetanse. Han har også videreutdannet seg innen digital odontologi, ortodontiske miniscrews og mukogingival kirurgi. Med et sterkt engasjement for vevspreservasjon har han fått privat opplæring av Dr. Gil Tirlet og Dr. Jean-Pierre Attal i Paris. Dr. Molia er en av grunnleggerne av det franske forskningsnettverket Southwest BioTeam, en gruppe som fokuserer på klinisk forskning og innovasjon.

Case by Dr. Julien Molia

YES, IT WORKS!

In the minds of many dental practitioners, it has become firmly established that flowable composites are nice liner or base materials below stronger packable composites and indirect restorations or as a temporization material. Many of them assume, however, that their use is limited due to their poor mechanical properties.

A NEW GENERATION OF FLOWABLES

Luckily, this is no longer true: Several flowable composites of the latest generation – like CLEARFIL MAJESTY™ ES Flow and CLEARFIL MAJESTY™ ES Flow Universal (both Kuraray Noritake Dental Inc.) – are equipped with mechanical properties, which are on par with those of many packable alternatives. Consequently, the range of indications is extended. For example, CLEARFIL MAJESTY™ ES Flow Universal, has a high filler loading of 75 to 78 wt/%, a flexural strength of more than 150 MPa and a compressive strength exceeding 370 MPa according to the manufacturer. Thanks to its high strength, it serves as a reliable and permanent solution, even suitable for stress-bearing areas such as the occlusal surfaces of posterior teeth.

However, this flowable composite has even more to offer: It is available in two levels of flowability – LOW and SUPER LOW – to serve a wider range of personal preferences and individual indication-specific needs and in just two shades (universal and universal dark). The latter offers the benefit of intuitive shade selection even in the anterior area and is enabled by a mixture of shade matching technologies, including optimized light diffusion technology and an enamel-like translucency.

The following case example reveals how CLEARFIL MAJESTY™ ES Flow Universal makes my life easier in posterior restoration procedures.

CASE EXAMPLE

This patient presented for the replacement of two amalgam restorations in the mandibular right molars (teeth # 46 and 47 according to the FDI notation) (Fig. 1). As it would facilitate filling and provide for great adaptation to the cavity walls, it was decided to use CLEARFIL MAJESTY™ ES Flow Universal LOW as the only restorative material. The position of the teeth to be restored made shade selection easy: Shade U (universal) is designed to work perfectly for all posterior restorations.

The amalgam restorations were removed and caries was excavated, while saving as much of the healthy tooth structure as possible (Figs. 2 and 3). A selective enamel etching technique was chosen, followed by the application of a universal adhesive (CLEARFIL™ Universal Bond Quick 2, Kuraray Noritake Dental Inc.). Subsequently, CLEARFIL MAJESTY™ ES Flow Universal in the LOW version and the selected shade U was applied into the cavities (Fig. 4). Thanks to the innovative syringe design, the applied flowable composite is virtually free of voids. In line with the instructions for use of the product, the thickness of each layer did not exceed 2 millimetres to provide for a complete cure (Figs. 5 and 6), which has a decisive impact on the long-term performance of the final restorations. Each layer should be thoroughly cured for 10 to 20 seconds (depending on the curing light) before the next layer is applied. As shown in Figure 7, the low flowability of the selected material allows for some modelling of the occlusal surface morphology. When more anatomical details need to be restored, the steadier SUPER LOW variant may be an option. It took just a few seconds to polish the restorations to high gloss (Fig. 8).

Fig. 1. Two amalgam restorations to be replaced.

Fig. 2. Situation after removal of the existing amalgam restorations.

Fig. 3. Typical amalgam staining is visible at the bottom of the larger cavity.

Fig. 4. Filling procedure: Application of the first layer of flowable composite.

Fig. 5. Second molar already filled, first molar in need of another layer of flowable composite.

Fig. 6. Filling completed.

Fig. 7. Nice surface morphology and shade blend-in.

Fig. 8. Treatment outcome after rubber dam removal. The restorations blend in nicely with the surrounding dentition – qua shade and surface gloss.

EASY-TO-USE ALTERNATIVE TO PACKABLE COMPOSITES

Especially in difficult-to-reach areas in the mouth, the use of a flowable composite with well-balanced mechanical properties can be a nice alternative to packable ones. Advanced shade-matching abilities, virtually void-free application, easy adaptation and modelling, and quick polishing truly simplify the life of the dental practitioner. However, many assume their use is limited due to poor mechanical properties.

Dentist:

JULIEN MOLIA

Dr. Julien Molia graduated in 2008 with a thesis on computer-assisted implantology. He established a general dental practice in Saint-Jean-de-Luz, where he has since focused on implant surgery and jawbone reconstruction. In 2017, he completed a second university degree in implantology to update and deepen his expertise. He has also pursued advanced training in digital dentistry, orthodontic miniscrews, and mucogingival surgery. Committed to tissue preservation, he trained privately with Drs. Gil Tirlet and Jean-Pierre Attal in Paris. Dr. Molia is a founding member of the French Southwest BioTeam, a collaborative group dedicated to clinical research and innovation.

Case by Dt. Koray Kendir, DDS, Turkey (İzmir)

INTRODUCTION

Trauma-related fractures of anterior teeth require a precise balance between aesthetics and function, often under emotional pressure from the patient. This clinical case demonstrates the restorative rehabilitation of a previously mismanaged central incisor using CLEARFIL MAJESTY™ ES-2 Premium and PANAVIA™ V5 (both Kuraray Noritake Dental Inc.). The team followed a biomimetic approach to re-establish biological, functional, and aesthetic harmony.

CASE SUMMARY

A 23-year-old female patient presented one month after a traumatic injury involving tooth #11 (FDI notation). Immediate root canal treatment and a direct composite build-up had been performed elsewhere in a single visit. The existing restoration showed poor aesthetics and marginal adaptation (Fig. 1).

Fig. 1. Initial clinical situation.

CLINICAL PROCEDURE

STEP 1: ISOLATION AND REMOVAL OF OLD RESTORATION

For the planned rehabilitation, the tooth was isolated with rubber dam (Figs. 2 and 3) and the existing composite restoration was removed. Gutta-percha from the previous endodontic treatment was found to be severely coronally trimmed (Fig. 4). This poses a risk of future discolouration. Consequently, the gutta-percha was condensed apically to a more biologically appropriate level using a downpack device (Figs. 5 to 9).

Fig. 2. Isolation of the working field with rubber dam: Labial view.

Fig. 3. Isolation of the working field with rubber dam: Occlusal view.

Fig. 4. Gutta-percha from the previous treatment.

Fig. 5. Gutta-percha removed, …

Fig. 6. … placed back into the root canal …

Fig. 7. … and condensed …

Fig. 8. … with a downpack device.

Fig. 9. Result of the procedure: Occlusal view.

STEP 2: CORE BUILD-UP

Subsequently, a fiber-reinforced composite was used to provide root-anchored support for the core structure. Then, the bonding surface was treated with phosphoric acid etchant, CLEARFIL™ Universal Bond Quick (Kuraray Noritake Dental Inc.) was applied as a universal adhesive and the core build-up was performed with CLEARFIL MAJESTY™ ES-2 Premium A1D (Figs. 10 to 13).

Fig. 10. Etching with phosphoric acid etchant.

Fig. 11. Application of the universal adhesive.

Fig. 12. Core build-up after thorough light curing.

Fig. 13. Intra-oral periapical radiograph or the treated tooth.

STEP 3: PREPARATION AND DIGITAL IMPRESSION

For definitive restoration, a 3/4 crown preparation was performed and an intraoral scan was taken. Moreover, a temporary crown was fabricated (Fig. 14) and shade photos were taken to finalize the session.

Fig. 14. Temporary restoration in place.

STEP 4: FINAL CEMENTATION

Once the lithium disilicate restoration was received from the laboratory, the temporary crown was removed and the abutment tooth was evaluated (Figs. 15 and 16). Try-in was performed using PANAVIA™ V5 Try-in Paste White to check shade and fit (Fig. 17). No modifications were required; the selected try-in paste contributed to a lifelike appearance of the restoration. For definitive placement, the intaglio surface of the crown was etched with hydrofluoric acid (Fig. 18). Figure 19 shows the appearance of the intaglio after this measure. To provide for optimal bonding conditions, the tooth surface was then cleaned with KATANA™ Cleaner (Kuraray Noritake Dental Inc.), which should be applied with a rubbing motion to the contaminated prepared tooth for more than ten seconds (Figs. 20 to 22). It may also be used to clean the intaglio of a restoration, which is contaminated with blood and saliva e.g. after try-in.

Fig. 15. Situation after removal of the temporary crown: Labial view.

Fig. 16. Situation after removal of the temporary crown: Occlusal view.

Fig. 17. Try-in of the lithium disilicate crown.

Fig. 18. Etching of the crown’s intaglio surface with hydrofluoric acid.

Fig. 19. Appearance of the etched surface.

Fig. 20. Cleaning of the abutment tooth …

Fig. 21. … surface covered with the cleaning agent.

Fig. 22. Thorough rinsing, which should be followed by drying with air.

Adhesive cementation itself was accomplished with the three-component PANAVIA™ V5 (Figs. 23 to 28): The prepared tooth structure and build-up was treated with PANAVIA™ V5 Tooth Primer, the intaglio surface of the crown with CLEARFIL™ CERAMIC PRIMER PLUS. Finally, PANAVIA™ V5 Universal (White) was extruded into the crown and the crown placed. Excess cement is best removed in the gel phase – i.e. after brief polymerization for 3 to 5 seconds before final light curing is performed. Alternatively, it may be removed immediately after seating the restoration with a brush or similar instrument. In this case the first option was chosen. The treatment outcome after rubber dam removal and final clinical and aesthetic evaluation is displayed in Figure 29.

Fig. 23. Priming of the tooth structure.

Fig. 24. Selected resin cement.

Fig. 25. Tooth structure ready for crown placement.

Fig. 26. Restoration in place.

Fig. 27. Lateral view of the restoration.

Fig. 28. Final light curing of the crown.

Fig. 29. Treatment outcome immediately after rubber dam removal.

CONCLUSION

This case highlights a comprehensive restorative approach to preserving a traumatized anterior tooth at risk of loss, while restoring both function and aesthetics. The strong core foundation provided by CLEARFIL MAJESTY™ ES-2 Premium and the reliable adhesive performance of PANAVIA™ V5 played a pivotal role in the successful procedure and outcome.

Dentist:

KORAY KENDIR

Dt. Koray Kendir is a graduate of Hacettepe University Faculty of Dentistry and the co-founder of a private dental clinic in İzmir. He specializes in digital dentistry, smile design, and computer-aided restorative treatments. Known for his innovative approach, Dr. Kendir is a frequent speaker at national dental congresses and serves as an advisor to several dental companies.

Case by A/Prof Alan Yap, BDS (Syd), MDSc Hons (Pros)(Syd), FAANZP

Since 1983 PANAVIA™ by Kuraray Noritake Dental Inc. has been the gold standard for dental cements throughout the world. Their latest cement, PANAVIA™ Veneer LC, sets a new standard for porcelain veneer cements through incredible performance and ease of use. The following clinical case demonstrates the use of PANAVIA™ Veneer LC.

A 31-year-old female (Fig. 1) was referred for porcelain veneers to replace lost tooth structure and to improve aesthetics. The patient exhibited moderate attrition of her anterior and bicuspid teeth (Fig. 2), the result of nocturnal bruxism and a tendency to an edge-to-edge occlusion. She had a Class I malocclusion on a Skeletal Class I tending III base with the right maxillary canine in cross-bite. The treatment plan included orthodontic treatment, porcelain veneers, and an occlusal splint.

Fig. 1

Fig. 2

Orthodontic treatment (by Dr Nour Tarraf) included full-fixed appliances with TADs and IPR of mandibular anteriors, and arch retractions to reduce protrusion (Fig. 3, post-orthodontic treatment). A preliminary digital design (Fig. 4) was performed to guide the diagnostic wax-up and a digital mock-up (Fig. 5) was utilised to verify the diagnostic wax-up prior to carrying out the intra-oral mock-up. The patient was unable to afford the restoration of the maxillary bicuspids until a later stage so the reconstruction was limited to the maxillary anterior teeth.

Fig. 3

Fig. 4

Fig. 5

Using the diagnostic wax-up, silicone keys were fabricated to guide tooth preparations. Orthodontic treatment allowed prosthetic treatment to be additive in design which meant that tooth preparations could be conservative. Labial reductions were limited to 0.3 mm and incisal reductions were performed only where needed to create an incisal butt joint for the veneer (Fig. 6). Minimal preparations allowed the veneers to be bonded almost entirely to enamel, which is important for the long-term survival of porcelain veneers (Ref 1). There was no need to significantly mask the colour of the cervical region of the tooth and non-carious cervical lesions were absent, so fine chamfer margins were prepared at equi-gingival level.

Fig. 6

Splinted provisional veneers (Fig. 7) were fabricated using bisacryl ensuring sufficient interdental space to allow hygiene access for small interdental brushes. The labial surface of the provisional veneers were glazed with a unfilled resin and cemented using the spot-etch technique, ensuring all excess flowable composite was removed prior to curing (Fig. 8). Twice daily interdental cleaning of the provisional veneers and thorough brushing of labial margins during the provisional phase maintained soft tissue health, important for the try-in and cementation of the definitive veneers.

Fig. 7

Fig. 8

A dry try-in of the definitive veneers was performed to check the fit of the veneers and a wet try-in was performed using try-in paste to assess aesthetics. The PANAVIA™ Try-in pastes accurately mimic the cement shades. Four useful shades are available (Fig. 9). The White and Brown shades are useful to correct small discrepancies in shade requiring subtle increases or decreases in shade value respectively. Conveniently the try-in pastes are the same as the PANAVIA™ V5 range of try-in pastes (excluding opaque). Following the try-in procedure the teeth were isolated using rubber dam and the floss ligature technique. KATANA™ Cleaner (Fig. 10) was used to clean the veneers prior to silanating with CLEARFIL™ CERAMIC PRIMER PLUS (Fig. 11).

Fig. 9

Fig. 10

Fig. 11

Veneers that have not been pre-etched should be etched with hydrofluoric acid prior to silanization. The use of the ProsMate™ Baton allows the cleaning, etching and silanization of all veneers simultaneously (Fig. 12). The veneers are arranged systematically on the ProsMate™ Tray ready for the cementation procedure (Fig. 13). Tooth surfaces were pre-treated with phosphoric acid (K-ETCHANT Syringe) and PANAVIA™ V5 Tooth Primer (Fig. 14).

Fig. 12

Fig. 13

Fig. 14

The newly designed cement applicator tip reduces air bubbles and the wide 16-gauge tip (Fig. 15) allows light and easy control of cement extrusion while also providing efficient wide coverage during application. PANAVIA™ Veneer LC has excellent handling because of its ideal paste consistency. It is non-sticky and its viscosity prevents the cement from flowing beyond the veneer margins until the veneer is seated. It is not runny or stringy. Furthermore its thixotropic properties results in lower film thickness during seating of the veneer. These excellent handling properties are due to the development of new filler technology which consists of spherical silica and nano cluster fillers (Fig. 16). The “touch-cure” mechanism of PANAVIA™ V5 Tooth Primer importantly seals the bonding interface while the extended working time and stability of the cement under ambient light allows the simultaneous cementation of multiple veneers. In this case all six lithium disilicate veneers (technical work by Yugo Hatai) were cemented simultaneously with PANAVIA™ Veneer LC Paste (Clear).

Fig. 15

Fig. 16

Tack-curing each veneer for one second allowed smooth and easy bulk removal of excess cement with an explorer (Fig. 17). Remaining excess of uncured paste was removed with brushes. Final curing was performed by light curing lingual and labial surfaces.

Fig. 17

The optical characteristics of PANAVIA™ Veneer LC, use of fine chamfer margins, and well-fitting translucent restorations produces a gradual and smooth transition of colour from tooth to veneer where margins disappear and soft tissues respond in a healthy way (Fig. 18). The color stability, excellent abrasion resistance and high gloss durability of PANAVIA™ Veneer LC preserves integrity and aesthetics at the margins over the long term. The extraordinary bond strength of PANAVIA™ products, so familiar to our profession over the last 20 years, is still second to none (Fig. 19).

Fig. 18

Fig. 19

“KATANA” is a registered trademark or trademark of NORITAKE CO., LIMITED - “PANAVIA” and “CLEARFIL” are registered trademarks or trademarks of KURARAY CO., LTD.

References

1. Layton DM, Walton TR. The up to 21-year clinical outcome and survival of feldspathic porcelain veneers: accounting for clustering. Int J Prosthodont. 2012 Nov-Dec; 25(6):604-12. PMID: 23101040.