By Jade Sidou Trabuc, CDT

Lifelike results: restoration of a micro-layered lateral incisor using CERABIEN™ MiLai ceramic. Internal characterization and minimal layering were performed to reproduce a natural shape, harmonious translucency, and realistic surface texture. Powders used: CCV2 and LTx, internal staining for effects, and surface stains to reproduce details and harmonize the smile.

7 MISTAKES TO AVOID TO ACHIEVE A NATURAL RESULT

Aesthetic failures in ceramic restorations are almost never the fault of the material itself. In ten years of laboratory practice, I have rarely seen a restoration fail because of the zirconia or the ceramic material. What I observe instead is a series of recurring mistakes – often invisible during the fabrication process – that ultimately compromise the final result under natural lighting conditions or during intraoral evaluation.

KATANA™ Zirconia YML and CERABIEN™ MiLai (Kuraray Noritake Dental Inc.) are materials with remarkable optical properties. Their interaction with light closely resembles that of natural dentition, provided that the entire fabrication process is carried out consistently. The quality of a restoration is not determined by the number of effects applied; rather, it depends on understanding the principles that govern the perception of shade, translucency and surface texture.

Born from my daily experience in the laboratory, this article presents the seven most common mistakes I have observed – both in my own work and among fellow technicians – when fabricating micro-layered restorations. For each of them, I explain why it occurs, what its optical consequences are, and which practical solution can be implemented immediately.

• Mistake n°1: Choosing the wrong translucency from the start
• Mistake n°2: Copying a photograph instead of understanding the natural tooth
• Mistake n°3: Neglecting the impact of clinical preparation
• Mistake n°4: Trying to correct shade with ceramic alone
• Mistake n°5: Creating excessive contrast between ceramic effects
• Mistake n°6: Underestimating the importance of polishing and surface finish
• Mistake n°7: Evaluating your work under a single light source

FRAMEWORK, OPTICAL INTERPRETATION AND CLINICAL PREPARATION

Mistake n°1 – Choosing the wrong translucency from the start

Why it happens: The selection of KATANA Zirconia YML is often driven by habit or used as a default choice because of its outstanding versatility in terms of mechanical strength, without considering the actual clinical situation – namely, the colour of the underlying substrate (light or dark abutment, cast post-and-core/inlay core). The translucency/opacity level of KATANA Zirconia (UTML, STML or HTML PLUS) should be selected according to the shade of the prepared abutment, the available reduction thickness and the brightness of the adjacent teeth.

Consequences: A framework that is too translucent over a dark abutment will create a deep greyish effect that cannot subsequently be corrected with ceramic layering. Conversely, an excessively opaque framework blocks the transmission of light, resulting in a dull, chalky and lifeless appearance.

Solution: Always assess the shade of the prepared abutment before ordering the disc. Use the KATANA Zirconia YML selection guides, which correlate abutment value, available reduction thickness and the target shade. When working with lithium disilicate over C3 or D4 abutments, favour ML or HT blocks to preserve brightness without allowing the underlying darkness to influence the final surface appearance.

Mistake n°2 – Copying a photograph instead of understanding the natural tooth

Why it happens: The temptation to reproduce exactly the shade photograph provided by the clinician is strong. However, a photograph is an interpretation of light, not light itself. It flattens volumes, exaggerates certain reflections and eliminates subtle transitions.

Consequences: Effects are reproduced without understanding their origin. An incisal halo visible in a photograph may simply be an optical illusion created by the angle of the flash. Attempting to replicate it in ceramic may result in an artificial and static appearance.

Solution: Learn to read a tooth rather than copy it. Analyse the distribution of the developmental lobes, the direction of light in the photograph, and distinguish genuine areas of translucency from simple reflections. With CERABIEN MiLai, we work by considering how light circulates within the restoration, rather than focusing solely on its surface appearance.

Mistake n°3 – Neglecting the impact of clinical preparation

Why it happens: The dental technician works from the impression or digital model provided by the clinician. It is not always possible to reject an under-reduced or irregular preparation, particularly when working under tight deadlines.

Consequences: Insufficient tooth reduction forces the technician to fabricate a framework that is too thin, leaving inadequate space for CERABIEN MiLai ceramic layering. A discoloured preparation, or a nonopaque post-and-core restoration, compromises the entire optical chain: even the finest ceramic cannot compensate for an opaque, greyish underlying substrate.

Solution: Establish a systematic communication protocol with the clinician, including a space assessment form (facial, occlusal and interproximal clearance), photographs of the abutment shade taken under natural light and, whenever possible, under polarized lighting. Never hesitate to request preparation modifications in writing. A well-documented fabrication report protects the dental technician and contributes to a better clinical outcome.

CERAMIC CANNOT COMPENSATE FOR EVERYTHING

Mistake n°4 – Trying to correct shade with ceramic alone

This is one of the most common – and most time-consuming – mistakes. It stems from a misconception: that layering ceramic is a universal shade-correction tool. In reality, the final colour of a micro-layered restoration is the result of an equation with four variables – framework, abutment, cement shade and ceramic – and modifying one without taking the others into account is bound to fail.

In practical terms: if the selected KATANA Zirconia YML framework is too light for a C4 abutment, applying a more saturated CERABIEN MiLai ceramic on the surface will produce a restoration with two different appearances – too warm in reflected light and too grey in transmitted light. Light reflection and light transmission do not behave in the same way, and the human eye perceives both simultaneously.

Practical solution: Establish the complete optical chain before you begin. Know the shade of the cement planned by the clinician (or ask for this information specifically), evaluate the framework under transmitted light before layering, and build the restoration with the overall value in mind rather than focusing solely on the surface shade.

POLISHING, SURFACE TEXTURE, AND LIGHT MANAGEMENT

Mistake n°6 – Underestimating the importance of polishing and surface finish

The surface condition of a ceramic restoration is one of the most critical factors influencing its final optical appearance – and one of the most frequently overlooked. Surface texture acts as an interface between incident light and the observer.

An excessively smooth surface reflects light specularly, creating bright highlights that may reveal subtle shade imperfections. Conversely, an overly rough surface scatters light in an uncontrolled manner, lowering the perceived value and accentuating chromatic irregularities. With CERABIEN MiLai ceramics, glazing plays a particular role: it homogenizes the micro-textures generated during the layering process and contributes to the perception of depth. A glaze layer that is either too thick or too thin alters the hierarchy of the visual layers. When properly mastered, post-firing manual polishing can even surpass glazing in terms of naturalness, as it enables the reproduction of differentiated anatomical textures – smoother in the cervical area and more textured in the incisal region.

Practical solution: Sequence the polishing procedure according to the different anatomical areas. Use silicone polishers with progressively finer grit sizes while maintaining light, constant pressure. For monolithic restorations fabricated from KATANA Zirconia YML, complete the polishing protocol with a 1-μm diamond paste to achieve a surface smoothness comparable to that of natural enamel. When working with CERABIEN MiLai layered restorations, create the surface texture before glazing using a fine rotary instrument, and verify the surface condition prior to the final firing cycle.

Mistake n°7 – Evaluating your work under a single light source

Dental laboratories are often equipped with cool white fluorescent lighting – practical for daily work, but misleading when evaluating a restoration. Cool light tends to overestimate value (brightness), suppress red and yellow hues, and diminish the perception of translucency. A restoration that appears ideal under these conditions may look gray or dull in natural daylight, and excessively warm under the incandescent lighting commonly found in residential environments.

This phenomenon, known as metamerism, is particularly critical with highly fluorescent ceramics such as CERABIEN MiLai. Fluorescent pigments respond differently depending on the spectral composition of the light source: a highly fluorescent restoration may appear exceptionally vibrant under UV-rich natural light or ultraviolet illumination, yet much more ordinary under filtered artificial lighting.

Ignoring this optical behavior can lead to restorations whose appearance changes unexpectedly once placed intraorally.

Practical solution: Implement a three-light evaluation protocol consisting of natural daylight (diffused northern light), warm artificial light (3000 K), and neutral fluorescent or LED lighting (4000 K).

Under each lighting condition, assess the restoration first in isolation and then in context, positioned on the model and adjacent to the neighboring teeth.

The variations in optical behavior observed under these different light sources will reveal more about the quality and integration of the restoration than any other evaluation method.

This three-light evaluation protocol makes it possible to detect metamerism before delivery, anticipate the restoration‘s behavior under the various lighting conditions encountered by the patient, and validate the fluorescence of the ceramic under different spectral conditions.

CONCLUSION: OPTICAL MASTERY BEFORE OPTICAL EFFECTS

After years of working with KATANA Zirconia YML and CERABIEN MiLai, one conviction remains unchanged: it is not the materials that limit the outcome, but our understanding of how to use them. These seven mistakes are not professional failures – they are logical pitfalls that every dental technician encounters on the path to excellence. Identifying, naming, and understanding them is already half the journey.

What distinguishes an average restoration from an exceptional one is rarely the complexity of its layering. More often, it is the consistency of the decisions behind it: selecting the appropriate zirconia translucency and opacity according to the clinical situation; accurately interpreting the optical characteristics of the natural dentition; maintaining an effective dialogue with the clinician regarding tooth preparation and cement selection; exercising restraint in the use of effects; applying meticulous polishing protocols; and adhering to a disciplined lighting evaluation procedure. These are simple principles, yet their systematic application has the power to elevate the overall quality and consistency of a laboratory‘s work.

After years of experience, I have found that CERABIEN MiLai, with its exceptional chromatic richness and optical behavior closely resembling that of natural dental tissues, reveals its full potential only when used with discernment. It is unforgiving of excess – but generously rewards mastery. This is precisely why, in my view, it is one of the most faithful layering systems available today, capable of adapting equally well to single-unit and multi-unit restorations. Its versatility and optical consistency allow the ceramist to achieve highly natural results while maintaining complete control over the restorative process.

“A natural restoration should not draw attention to itself. It should simply feel right. It is optical principles – not the quantity of effects that create the illusion of life.”

– Jade Sidou Trabuc

UNCOMPROMISED.
UNMATCHED.
YOURS.

In busy dental laboratory environments, efficiency matters just as much as reliability. TiBase cementation is performed daily — but reducing unnecessary steps while maintaining strong, durable bonding can make a real difference in productivity and consistency.

 
In this video, we demonstrate a streamlined, step-by-step approach using PANAVIA SA Cement Universal for cementing zirconia restorations to titanium bases. From surface pretreatment and sandblasting to cement application and final finishing, the workflow is designed to simplify the process without compromising performance.

By adopting a more efficient cementation protocol, you can save time, reduce technique sensitivity, and achieve predictable, long-term results in implant-supported restorations.

 
Discover more: Learn more about PANAVIA™ SA Cement Universal and the KATANA™ Zirconia portfolio.

PREFERRED PRODUCT RECOGNITION FOR CLEARFIL CERAMIC PRIMER PLUS

Efficient workflows, simplified protocols, and excellent  adhesion are essential in modern indirect restorative procedures. With CLEARFIL™ CERAMIC PRIMER PLUS, Kuraray Noritake Dental Inc. offers a versatile, one-step universal primer designed to streamline bonding while delivering consistent, high bond strength.

CLEARFIL CERAMIC PRIMER PLUS is formulated to promote strong, durable adhesion to a wide range of restorative materials, including silica-based ceramics, zirconia and composite restorations. By integrating advanced functional monomers into one universal primer, it optimizes both performance and clinical protocols.

Key benefits of CLEARFIL CERAMIC PRIMER PLUS include:
•    Universal, one-step primer for indirect restorations
•    Strong, durable bond to silica-based ceramics, zirconia, and composites
•    Streamlines procedures and reduces chair time
•    Easy application with predictable results
•    Trusted performance in daily clinical practice

DENTAL ADVISOR PREFERRED PRODUCT AWARD

Recognized for versatility and performance

The main feature that made CLEARFIL CERAMIC PRIMER PLUS win a Preferred Product Award in 2026 (and in previous years since 2018) is its versatile, one-step formulation, which performed very well in laboratory testing and in the clinical environment.

Among the clinical evaluators' comments was: "Easy to use on a variety of materials," while the product's wetting ability and the speed of application were highlighted as well. These outcomes contributed to a high overall clinical performance rating (of 96%) in the original clinical evaluation.

An efficient universal primer

By once again earning the Dental Advisor Preferred Product Award, CLEARFIL CERAMIC PRIMER PLUS reinforces its reputation as an efficient and strong universal primer. Its combination of simplified handling and proven bonding performance makes it an essential solution for modern indirect restorative workflows.

For more information, visit Dental Advisor.

TiBase cementation is a routine step in many dental laboratory workflows — yet it remains a critical one. Getting the bond right between zirconia restorations and titanium bases is essential for the long-term success of implant-supported restorations.

 
In this video, we walk through a complete, step-by-step lab protocol using PANAVIA™ V5, covering all key stages from surface preparation and controlled sandblasting to priming, cement application, and final finishing. The workflow is designed to help you achieve consistent, high-strength adhesion while maintaining efficiency and control in your daily lab work.

By following this structured approach, you can minimise risk, improve predictability, and deliver durable clinical outcomes.

 
Discover more: Explore PANAVIA V5 and the KATANA™ Zirconia range.

Article by Peter Schouten

The restoration of endodontically treated teeth often requires the use of core build-ups to provide a foundation for the final restoration. Historically, root posts served as a common method to enhance retention and stability for core build-ups. However, resin composite materials have gained popularity for core build-ups due to their excellent aesthetics, adhesive properties, and versatility. As the reinforcement of the remaining tooth structure (and replacing the missing tooth structure) remains fundamental, the decision to use a root post is a subject of ongoing debate.

This article aims to explore several key factors related to restoring endodontically treated teeth using resin composite with or without the introduction of a root post.

HISTORY

Core build-ups with a root post originally used metal as a post material for their strength. Stainless steel, titanium, and gold were popular choices. However, concerns about potential complications like root fractures prompted a shift in treatment philosophy.

The advent of adhesive dentistry brought about the rise of resin composite core build-ups, offering a less invasive and more conservative alternative. The possibility of bonding restorative materials to dental tissue reduced the need to remove sound dental tissue. This shift in perspective allows for a more conservative approach, prioritizing tooth preservation while still providing sufficient strength and retention for long-term success.

POST OR NO POST

Preserving as much tooth structure as possible is a general prerequisite in modern dentistry. Therefore, omitting the use of a post must be considered, especially in cases where root dentine must be sacrificed to create sufficient space and access to insert the post. The decision to use a post should consider the following factors:

1. The amount and quality of the remaining tooth structure*
2. The presence of a ferrule effect
3. The clinician's experience

*Several studies suggest that in cases where an adequate amount of tooth structure remains and when the remaining tooth structure is of good quality, root posts may not be necessary.

THE AMOUNT AND QUALITY OF THE REMAINING TOOTH STRUCTURE

Preserving as much dental tissue as possible is the first requirement. The presence of at least two intact axial walls is considered ideal for optimal clinical outcomes. Teeth with no- or only one residual wall appear to have reduced survival rates compared to teeth with more than one wall.

THE PRESENCE OF A FERRULE EFFECT

The ferrule effect refers to the presence of a circumferential band of tooth structure encircling the coronal portion of the tooth. This effect has been shown to contribute significantly to the resistance of the restored tooth to fracture. Minimal ferrule dimensions are not set in stone. Some general recommendations can be given to help evenly distribute forces, resist occlusal forces, and give enough retention. The ferrule should ideally extend at least 2 mm above the cementoenamel junction, have a circumferential width of approx. 1 mm and a thickness of 1 to 1.5 mm. Finally, the axial walls should have a slight taper towards the occlusal plane.

*This flowchart has been put together with the greatest care. The “workflows” shown in this article only intended as a brief indication of the actual procedure to follow. This procedure is for general information purposes only and no rights may be derived from it. Always follow the instructions for use (IFU) that come with the product(s).

THE ADHESIVE APPROACH

Proper adhesive techniques should be employed to maximise the bond strength between the post, luting agent, and root canal walls. Here are several issues to look out for:

Debonding

It is believed that debonding is one of the most common failures in teeth restored with adhesively cemented endodontic posts and can be directly associated with adhesive bonding issues within the root canal (e.g., insufficient polymerisation, inadequate application of adhesive, resin and reduced evaporation of solvents). The right choice of materials plays an important role here.

Appropriate Post-Cementation Procedure

First of all the selection of the proper adhesive system should consider factors such as bond strength, biocompatibility, and ease of use. Various adhesive strategies have been suggested for cementing posts, ranging from the separate application of adhesive (etch-and-rinse as well as self-etch adhesives) and resin cement, to the use of self-adhesive resin cement. Compared to etch-and-rinse adhesives, the bond strength of self-etch systems to root canal dentine seems not strongly affected by the post-space region. Zenthöfer et al. concluded the performance of self-etch adhesives to be comparable with that of materials processed using the total-etch technique, at least in the short term.

Clean Surface

An adequately performed adhesive cementing procedure, including a clean dentine surface, seems important for the success of the coronal restoration of endodontically treated teeth.** Remaining sealer after post-space preparation negatively influences the bondability of the root canal dentine. Tian et al. conducted a study comparing the effectiveness of different sealer cleaning methods prior to bonding procedures. They found KATANA™ Cleaner to be capable of restoring the bonding potential to sealer contaminated dentine.

Direct Composite Resin Core Build-Ups

Today, the use of direct composite resins for core build-ups has become popular. Their use permits the conservation of dentine and facilitates adhesive bonding to the radicular and root dentine. The continuous development of (self-adhesive) resins, both cement and build-up materials, has provided greater applicability to endodontically treated tooth restoration. With proper tooth preparation, adhesive techniques and protocols, direct composite resin can provide predictable and long lasting results.

CLEARFIL Universal Bond Quick 2 and CLEARFIL DC CORE PLUS

Using adhesives in core build-ups and post & core restorations can be challenging because of the need for adequate energy from the curing light to polymerise the adhesive properly. To overcome curing problems in deeper root canal regions, manufacturers have developed self-cure promoters that can be added to light-curable adhesives. These, however, can lead to pooling of the adhesive in the apical area of post preparations, hampering the insertion of the post to the desired depth and also limit the working time. Kuraray Noritake Dental Inc. addressed this clinical issue with an advanced and improved single-component self-etch adhesive, CLEARFIL™ Universal Bond Quick 2, when combined with CLEARFIL™ DC CORE PLUS dual-cure core build-up resin composite. New initiators have been added to the adhesive and core build-up resin as an alternative to using a self-cure promoter, causing CLEARFIL Universal Bond Quick 2 to set when CLEARFIL DC CORE PLUS contacts the adhesive.

Improved properties

Kuraray Noritake Dental Inc. has improved their dual-cure core build-up resin, CLEARFIL DC CORE PLUS, to offer better flow during dispensing and stability afterwards of the uncured resin core material. The filler technology has been modified in a way that the paste became thixotropic. This "non-slumping formula" enables easy dispensing and allows the creation of a build-up without the need for a matrix. The improved flow also permits its use, combined with CLEARFIL Universal Bond Quick 2, for the cementation of posts, resulting in a product that is suitable for post cementation as well as the build-up.

Core composite or adhesive cement?

In clinical situations where a post is included, the post-cementing process can be covered with either CLEARFIL DC CORE PLUS or PANAVIA™ SA Cement Universal. The latter one can be used with or without CLEARFIL Universal Bond Quick 2. Choosing between the two products is, for a large part, dependent on the space between the post and the canal wall:

1. Tight-fit: So-called tight-fit situations, meaning the post snugs tightly to the canal, might benefit from using a highly bondable resin cement of low thickness (PANAVIA SA Cement Universal).
2. Loose-fit: Loose-fit cases need a larger amount of resin-based material and are better off using a material that has better physical properties for use as a filling material (CLEARFIL DC CORE PLUS) instead of cement.

CONCLUSION

The general prerequisite in modern dentistry is to preserve as much tooth structure as possible. Based on the premises identified in this article, the choice for the placement of a post and the use of the restorative materials can be decided based on the case in front of the clinician. The stability of core build-ups is no longer dependent on the support by a post. After analyzing the remaining tissue and keeping in mind the success factors for a strong bond, patients can be offered highly aesthetic and sustainable restorations without large interventions.

*This flowchart has been put together with the greatest care. The “workflows” shown in this article only intended as a brief indication of the actual procedure to follow. This procedure is for general information purposes only and no rights may be derived from it. Always follow the instructions for use (IFU) that come with the product(s). Please note that only a selection of treatment options have been explored. Our main focus is on the use of a core build-up composite and fibre post placement.

The following sources of information were used in writing this article:

• Zenthofer, A., Bermejo, J. L., Bomicke, W., Frese, C., Gulmez, R., Rammelsberg, P., & Ohlmann, B. (2022). Early failures when using three different adhesively retained core build-up materials-a randomized controlled trial. Clin Oral Investig, 26(2), 1927-1936. doi:10.1007/s00784-021-04170-6
• Tian, F., Jett, K., Flaugher, R., Arora, S., Bergeron, B., Shen, Y., & Tay, F. (2021). Effects of dentine surface cleaning on bonding of a self-etch adhesive to root canal sealer-contaminated dentine. J Dent, 112, 103766. doi:10.1016/j.jdent.2021.103766
• Bhuva, B., Giovarruscio, M., Rahim, N., Bitter, K., & Mannocci, F. (2021). The restoration of root filled teeth: a review of the clinical literature. Int Endod J, 54(4), 509-535. doi:10.1111/iej.13438
• Ozcan, M., & Volpato, C. A.M. (2020). Current perspectives on dental adhesion: (3) Adhesion to intraradicular dentine: Concepts and applications. Jpn Dent Sci Rev, 56(1), 216-223. doi:10.1016/j.jdsr.2020.08.002
• Lazari, P. C., de Carvalho, M. A., Del Bel Cury, A. A., & Magne, P. (2018). Survival of extensively damaged endodontically treated incisors restored with different types of posts-and-core foundation restoration material. J Prosthet Dent, 119(5), 769-776. doi:10.1016/j.prosdent.2017.05.012
• Carvalho, M. A., Lazari, P. C., Gresnigt, M., Del Bel Cury, A. A., & Magne, P. (2018). Current options concerning the endodontically-treated teeth restoration with the adhesive approach. Braz Oral Res, 32(suppl 1), e74. doi:10.1590/1807-3107bor-2018.vol32.0074
• Magne, P., Lazari, P. C., Carvalho, M. A., Johnson, T., & Del Bel Cury, A. A. (2017). Ferrule-Effect Dominates Over Use of a Fiber Post When Restoring Endodontically Treated Incisors: An In Vitro Study. Oper Dent, 42(4), 396-406. doi:10.2341/16-243-L
• Scotti, N., Rota, R., Scansetti, M., Migliaretti, G., Pasqualini, D., & Berutti, E. (2012). Fiber post adhesion to radicular dentine: The use of acid etching prior to a one-step self-etching adhesive. Quintessence Int, 43(7), 615-623. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/22670257
• Ferrari, M., Vichi, A., Fadda, G. M., Cagidiaco, M. C., Tay, F. R., Breschi, L., Goracci, C. (2012). A randomized controlled trial of endodontically treated and restored premolars. J Dent Res, 91(7 Suppl), 72S-78S. doi:10.1177/0022034512447949
• Breschi, L., Mazzoni, A., De Stefano Dorigo, E., & Ferrari, M. (2009). Adhesion to Intraradicular
• Dentine: A Review. Journal of Adhesion Science and Technology, 23(7-8), 1053-1083. doi:10.1163/156856109X440957
• Watzke, R., Blunck, U., Frankenberger, R., & Naumann, M. (2008). Interface homogeneity of adhesively luted glass fiber posts. Dent Mater, 24(11), 1512-1517.doi:10.1016/j.dental.2008.03.022
• Fokkinga, W. A., Kreulen, C. M., Bronkhorst, E. M., & Creugers, N. H. (2007). Up to 17-year controlled clinical study on post-and-cores and covering crowns. J Dent, 35(10), 778-786. doi:10.1016/j.jdent.2007.07.006
• Fokkinga W.A. Post it? Reconstruction of the endodontically treated tooth. Thesis. ISBN: 978-90-9021726-0
• Fokkinga, W. A., Kreulen, C. M., & Creugers, N. H. (2006). [In vitro fracture behaviour of composite crowns with and without posts]. Ned Tijdschr Tandheelkd, 113(8), 313-318. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/16933594

CHOOSE AWARD-WINNING TEETHMATE DESENSITIZER

Immediate relief, long-term protection, and easy application — these are key requirements when managing dentin hypersensitivity. With TEETHMATE™ DESENSITIZER, Kuraray Noritake Dental Inc. offers a non-invasive, clinically proven solution designed to provide rapid and lasting relief.

TEETHMATE DESENSITIZER is a powder-liquid formulation that, once mixed, creates a hydroxyapatite slurry. Applied to exposed or freshly prepared dentin, this slurry seals open dentinal tubules. As the material sets, hydroxyapatite crystals are formed, providing a biomimetic barrier that supports both immediate pain relief and long-term sensitivity reduction — without affecting bond strength when applied in the context of restorative procedures.

Key benefits of TEETHMATE DESENSITIZER include:
•    Ease of mixing and application
•    Scientifically proven long-term effect
•    Tissue-friendliness and biocompatibility
•    Compatibility with restorative procedures – no effect on bond strength

DENTAL ADVISOR TOP PRODUCT AWARD

Hydroxyapatite formation: a true game changer

The clinicians who tested TEETHMATE DESENSITIZER in clinical practice identified the material's ability to form hydroxyapatite in an easily applicable slurry consistency as a top feature. In a long-term study conducted by the Dental Advisor, hypersensitivity relief was achieved in 85% of patients.

Representative comments included: "TEETHMATE DESENSITIZER is easy to apply and seems to provide consistent relief…" and "at six months, the majority of patients continue to experience marked improvement from their preoperative sensitivity or no sensitivity at all."

These outcomes contributed to a high overall clinical performance rating and the product's continued recognition as a Top Product in its category – the twelfth time in a row.

DEMONSTRATING LONG-TERM EFFECTIVENESS

By earning another Dental Advisor Top Product Award in 2026, TEETHMATE DESENSITIZER continues to demonstrate long-term effectiveness in managing dentin hypersensitivity. Its biomimetic mechanism of action, ease of use, and clinically proven relief make it a trusted solution for both preventive and restorative treatment protocols.

For more information, visit Dental Advisor.

WITH AWARD-WINNING CLEARFIL SE Protect

While many clinical situations call for a bonding agent that delivers strong, durable adhesion quickly and easily, some cases demand more than that. Developed by Kuraray Noritake Dental Inc., CLEARFIL™ SE Protect goes beyond dependable bonding performance by offering additional protective benefits – most notably an antibacterial cavity-cleansing effect.

CLEARFIL SE Protect is a proven two-step self-etch adhesive built on the same trusted platform as the recognized Gold Standard - CLEARFIL™ SE BOND, known for its excellent bond strength to tooth structure. 

In addition, CLEARFIL SE Protect incorporates two advanced technologies: long-term fluoride release and the antibacterial MDPB monomer, which destroys bacteria on contact. These added benefits eliminate the need for a separate cavity cleanser, contributing to both clinical efficiency and restorative longevity. As a result, the product has once more been named a Top Product in the Direct Restoratives – Bonding Agent: Self-Etch category by Dental Advisor.

The key features of CLEARFIL SE Protect include:

• Fast, simple application with minimal technique sensitivity
• A tried-and-tested two-step self-etch system providing high bond strength to enamel and dentin
• An effective antibacterial cavity-cleansing action
• Virtually no post-operative sensitivity

DENTAL ADVISOR RECOGNITION: LONG-TERM PERFORMANCE AND ANTIBACTERIAL PROPERTIES

This year, Dental Advisor consultants highlighted CLEARFIL SE Protect's long-term clinical performance and antibacterial effectiveness as top features. Long-term studies confirmed strong resistance to microleakage and the absence of marginal staining.

The antibacterial cavity-cleansing effect is achieved through the MDPB monomer, which contains a positively charged pyridinium group that attracts negatively charged bacterial cells. Upon contact, the bacterial cell membrane is disrupted, resulting in bacteriolysis and a clean cavity surface – an ideal foundation for durable restorations. Once polymerised, the MDPB monomer becomes immobilised, remaining latently active without causing harm to surrounding tissues.

Evaluators also praised the product's handling characteristics and lack of post-operative sensitivity. One evaluator commented, "The flow of the primer and bond is easily controlled using the unique dispensing system".

A DEPENDABLE BONDING SOLUTION

By combining proven adhesive performance with antibacterial protection and long-term success, CLEARFIL SE Protect continues to set itself apart in the self-etch category. Its repeat recognition by Dental Advisor underscores its value as a dependable, multifunctional bonding solution for clinicians seeking both efficiency and enhanced patient outcomes.

For more information, visit Dental Advisor.

ACCORDING TO DENTAL ADVISOR: CLEARFIL MAJESTY ES Flow

Exceptional aesthetics, precise handling, and dependable performance are the hallmarks of a flowable composite clinicians return to year after year. With CLEARFIL MAJESTY™ ES Flow, Kuraray Noritake Dental Inc. delivers a highly filled flowable composite designed to offer versatility across a wide range of restorative procedures, without compromising aesthetics.

In 2026, the medium viscosity variant of CLEARFIL MAJESTY ES Flow (Low) was once again recognised by Dental Advisor. It earned a Top Product Award in the category Direct Restoratives – Composite: Highly-Filled Flowable for the 10^th time! This continued recognition underscores its consistent clinical performance and long-standing trust among dental professionals.

CLEARFIL MAJESTY ES Flow is available in three flowability options in Europe, allowing clinicians to select the ideal viscosity for each indication.

Containing Kuraray Noritake Dental Inc.'s Light Diffusion Technology, the material delivers natural-looking restorations that blend seamlessly with the surrounding tooth structure.

Key advantages of CLEARFIL MAJESTY ES Flow include:
•    Outstanding aesthetics with lifelike opacity and shade blending
•    Three flowability options for maximum clinical flexibility
•    Excellent handling properties 
•    Easy finishing and polishing
•    A syringe design that helps prevent voids and dripping

ELEVEN-TIME RECOGNITION FOR AESTHETICS AND HANDLING

CLEARFIL MAJESTY ES Flow's eleventh Dental Advisor Award reflects its ability to deliver reliable results in everyday clinical practice. Evaluators consistently highlighted the composite's excellent handling, controlled viscosity, and highly aesthetic outcomes.

Minimal finishing and polishing were necessary thanks to the material's natural opacity and shade behaviour, while the high filler content was found to support stability without slumping. The updated syringe design was also praised for contributing to smooth dispensing and reduced risk of air bubbles.

Evaluator feedback included comments such as: "The material blended so well with the tooth structure that you had to look hard to find the interface" and "My go-to flowable composite. Looks beautiful in any clinical case, any class, anywhere".

A PROVEN FAVOURITE

Earning a Product Award for the eleventh time, CLEARFIL MAJESTY ES Flow stands as a proven favourite in highly filled flowable composites. Its combination of aesthetic excellence, dependable handling, and clinical versatility continues to make it a trusted choice for restorative dentistry – year after year.

For more information, visit Dental Advisor.

THE IMPACT OF A MATERIAL SWITCH IN THE DENTAL LABORATORY

Switching to a different type of zirconium is not something you do lightly. Was the leap to KATANA™ Zirconia worth it? Three dental lab owners share their experience!

Not all zirconium oxide materials are created equal. Dental technicians worldwide recognise that zirconium oxide discs vary significantly in quality depending on their composition and manufacturing process. The most noticeable differences lie in their mechanical and optical properties, both of which are determined during production.

At first glance, zirconium oxide products from leading manufacturers may seem similar. However, -sometimes invisible- differences can exist. Achieving the highest quality requires the use of premium raw materials, advanced cleaning and pressing techniques, and precise pre-sintering methods. These factors help ensure superior results while minimizing the risk of remakes.

Selecting a high-quality zirconium oxide product is crucial, particularly when working with complex structures or specialised processing techniques. The right choice can significantly impact the final outcome and durability of dental restorations.

We had a conversation with three decision makers of Norwegian dental laboratories to learn more about their reasons to switch to the KATANA™ Zirconia Multi-Layered Series (Kuraray Noritake Dental Inc.) and their path to success with these materials. Espen Rørstad is the owner and general manager of Vestfold Dental in Tønsberg, Lucas Andvik the general manager of Cicero Dental AS in Trondheim and Egil Berg the general manager of dental technology at Berg Dental in Askim. They are happy to share their experience and practical tips and tricks.

TIME FOR CHANGE

The reasons to start testing alternative zirconium oxide materials were different: Espen Rørstad, who has been a dental technician for 24 years, was looking for improvements in strength and aesthetics: "Nowadays, zirconium materials are evolving quickly, and specifically those blanks with multi-layered colour, translucency and flexural strength attracted my attention. I first tested a material from another leading manufacturer. Then, I received a single disc of KATANA™ Zirconia YML. I was immediately impressed by the homogeneous, densely pressed material and its optical properties. Ever since my first trial case with KATANA Zirconia YML, I have not used any other zirconium oxide again."

"I was immediately impressed by the homogeneous, densely pressed material and its optical properties."

- Espen Rørstad -

CHOOSING THE RIGHT MATERIAL

Egil Berg uses KATANA Zirconia YML for most indications, and KATANA™ Zirconia HTML Plus for large reconstructions of ten or more units. The design is predominantly monolithic with a small (vestibular) cutback. The approach of Espen Rørstad is similar. He also uses KATANA Zirconia YML on a regular basis for reconstructions with up to ten units, even on implants in combination with Ti-bases. "For larger-span restorations, I most frequently opt for KATANA Zirconia HTML Plus or, occasionally KATANA™ Zirconia HT combined with a traditional layering approach". Lucas Andvik uses all four types of multi-layered zirconia from Kuraray Noritake Dental Inc. (KATANA Zirconia UTML, STML, HTML Plus and YML) to have the best of all worlds.

ESTABLISHING WORKFLOWS

Switching materials always means investing time and effort until processes run smoothly and predictably. According to Espen Rørstad, it did not take long with KATANA Zirconia to get the parameters right and obtain high-quality results. According to him, a factor that is critical for good outcomes with KATANA Zirconia YML is positioning of the restoration in the disc. "Proper positioning is key to success - long-span reconstructions are only stable if positioned according to the manufacturer's recommendations. The learning curve is quite steep and we have no issues with fractures," he says. Lucas Andvik slightly adjusted his production procedure to provide for great outcomes: "Initially, we tried to position our restorations in blanks of the heights we had used before, and this turned out to be quite challenging. In order to have enough space for the connectors and be able to position long-span restorations in the middle of the disc as recommended, we started utilising higher blanks. With this strategy, the initial challenges were a thing of the past."

EASY CARVING

One of the practical benefits of using KATANA Zirconia is the fact that it is perfectly suitable for carving. Lucas Andvik states: "Carving is easier with KATANA Zirconia than with other materials. It is even possible to go close to the margins without increasing the fracture risk. Other materials seem to be much less dense and softer, which may result in marginal fractures. Carving is really a feature that transformed our inhouse production procedure and contributes to great outcomes." Espen Rørstad and Egil Berg agree that carving feels great with this material, while the former also stresses that the overall aesthetics when using the carving technique are very well received by partners from dental offices.

"Carving is easier with KATANA Zirconia than with other materials."

- Lucas Andvik -

MASTERING THE SINTERING PROCESS FOR OPTIMAL RESULTS

A procedure known as a critical step in the production procedure is the sintering. Virtually every leading manufacturer of high-translucency zirconium oxide advises users to calibrate furnaces and check the achieved temperatures on a regular basis to provide for optimal outcomes. The actual sintering protocols recommended for each material, however, are very different. Kuraray Noritake Dental Inc. offers three sintering programms valid for all four materials of the KATANA Zirconia Multi-Layered series: The standard seven-hour programme is available for all kinds of prostheses, while the high-speed 54-minute and 90-minute programmes are suitable for restorations with up to three units. For KATANA™ Zirconia Blocks, even 18-minute sintering is possible. Lucas Andvik uses the seven-hour programme for over-night sintering of all large restorations, and speed sintering for single-tooth restorations and small bridgeworks during the day. With his new furnace, he simply adopted the recommended protocols. Espen Rørstad  modified the protocols slightly for his furnace and regards speed sintering as a great option for rush cases. Egil Berg prefers over-night sintering. He reports: "It is really important to have a high-quality, modern furnace, calibrate it regularly and follow the manufacturer's instructions. My recommendation for everyone experiencing issues is to pay extra attention to warming up and cooling down properly. That way, you achieve the highest possible strength and aesthetics, including an absolutely smooth transition between the different layers in the blank."

MICRO-LAYERING: A GAME CHANGER FOR FINISHING

In all three dental laboratories, the integration of KATANA Zirconia has led to a shift towards higher-efficiency finishing approaches. Espen Rørstad reports: "The switch to KATANA Zirconia enabled us to increase the amount of monolithic and micro cut-back zirconium oxide restorations from around 40 to 80 percent. In the anterior area, we use a minimal vestibular cutback and micro-layering, while the restorations are purely monolithic and only minimally pre-coloured in the posterior area. Classical layering is only delivered on special request." Egil Berg states: "We completely stopped using traditional porcelain layering approaches and prefer micro-layering instead - especially in combination with KATANA Zirconia YML. The aesthetic outcomes are so good that a cosmetic dentist recently called me and asked if I had used lithium disilicate instead of zirconium." Lucas Andvik also likes to add a little bit of porcelain: "We moved away from a full cutback to micro-layering approaches, using the same porcelain system for lithium disilicate and zirconium oxide," he says. In subgingival areas, he often just polishes the restorations for highest biocompatibility, a concept that is very well received by dental practitioners.

HAPPY WITH THE RESULTS?

Egil Berg concludes: "Once you have implemented the workflow and set all parameters, working with KATANA Zirconia is really great. My staff likes its handling during carving, the efficient workflows and predictable results. Although sometimes the product may be more expensive than other brands' zirconium oxide, the total economy is a lot better: We do no longer face any issues with fractures and remakes, and due to the homogeneous material structure, the service life of our milling tools is extended, while, at the same time, the edge stability of the milled restorations is increased. The blanks are so homogeneous that I am able to sinter long-span restorations without a lateral support!"

The conclusion of Lucas Andvik is similarly good: "everyone in my laboratory working with KATANA Zirconia is more than satisfied. My co-founder, Katharina, has tested many different materials on behalf of notable manufacturers and has never seen anything that compares to KATANA. All the technicians that work with KATANA here consider it to the most versatile and aesthetic we have ever utilized. I think that all four variants are super nice to work with. My personal recommendation is to attend one of the courses offered by Kuraray Noritake Dental Inc. The instructors are super knowledgeable and we got a completely new conception of zirconium oxide as well as practical advice that was really useful for our daily work."

"The blanks are so homogeneous that I am able to sinter long-span restorations without a lateral support!"

- Egil Berg -

Espen Rørstad is sure that "in terms of aesthetics, KATANA Zirconia is the best zirconium oxide tested, and I really tested a lot in the past decades! I am happy with the material, the interaction with the Kuraray Noritake Dental team and the support offered. My team is also happy with the material, but even more important is the positive feedback of my customers: One of them requested a specific zirconium all the time, and when we switched, we did not tell him immediately. Now he knows and is very happy with what he gets." Espen is sure that economically, KATANA Zirconia YML is even able to compete with cheap zirconium oxide brands, as the production procedure is much more efficient and the results are predictable.

Switching zirconium oxide materials is a significant investment in both time and resources, but for many dental laboratories, the results speak for themselves. The experiences shared by these Norwegian technicians demonstrate that KATANA Zirconia offers a balance of aesthetics, strength, and efficiency. While adapting to new workflows takes effort, the improved outcomes, fewer remakes, and enhanced handling make the transition worthwhile. For those considering the switch, thorough testing and training are key to ensuring a smooth and successful integration.

PANAVIA SA Cement Universal NAMED A TOP PRODUCT BY DENTAL ADVISOR

Strong, durable adhesion in a simplified single-step cementation procedure – this is what clinicians expect from a modern self-adhesive resin cement. With PANAVIA™ SA Cement Universal, Kuraray Noritake Dental Inc. delivers a versatile cementation solution designed to bond to virtually every restorative substrate – without requiring a separate primer or silane.

Key benefits of PANAVIA SA Cement Universal include:
•    Wide variety of indications, including cementation of crowns/bridges, inlays/onlays, posts, splints, and even adhesion bridges
•    Adheres to a wide variety of restorative materials (including lithium disilicate) without separate primers
•    Easy, gingival-friendly excess removal
•    Ready for use immediately as it requires no refrigeration

DENTAL ADVISOR TOP PRODUCT AWARD

Open options and minimized materials are the top features

PANAVIA SA Cement Universal contains two advanced monomers – the LCSi monomer as a silane coupling agent and the original MDP monomer – to establish a strong chemical bond to a wide variety of substrates. It is thus no surprise that "Open Options" (as it adheres to virtually all substrates) and "Minimized Materials" (as it does not need any separate adhesive and primers) were the top features that made the product win a Top Product Award in 2026 (and every year since 2020).

Evaluators also enjoyed its user-friendly handling with an "Amazing viscosity, tack cure-ability and very easy cleanup" as well as the fact that it "can be used in a moist environment with no setting issues".

Its user-friendly handling and predictable outcomes make it a popular choice for clinicians who value both efficiency and performance.

Dependable choice for efficient cementation

By earning the Dental Advisor Top Product Award for the seventh consecutive year, PANAVIA SA Cement Universal once again demonstrates excellent performance in clinical practice. Its innovative monomer technology, simplified protocol, and consistent bonding performance make it a dependable choice for efficient, universal cementation.

PANAVIA SA Cement Universal AS PART OF THE EXPANDING PORTFOLIO

At Kuraray Noritake Dental Inc., we understand the demands of modern dental practices. Balancing complex procedures, tight schedules, and patient care is no easy task. That is why we have spent years refining our materials—so you can focus on what matters most: your patients.

Our Universal Excellence portfolio is designed to streamline clinical workflows, providing high-quality materials that work seamlessly together and support efficient, reliable treatment outcomes.

For more information, visit Dental Advisor and the Kuraray Noritake Dental Europe website.

Article by Peter Schouten

The restoration of endodontically treated teeth often requires the use of core build-ups to provide a foundation for the final restoration. Historically, root posts served as a common method to enhance retention and stability for core build-ups. However, resin composite materials have gained popularity for core build-ups due to their excellent aesthetics, adhesive properties, and versatility. As the reinforcement of the remaining tooth structure (and replacing the missing tooth structure) remains fundamental, the decision to use a root post is a subject of ongoing debate.

This article aims to explore several key factors related to restoring endodontically treated teeth using resin composite with or without the introduction of a root post.

HISTORY

Core build-ups with a root post originally used metal as a post material for their strength. Stainless steel, titanium, and gold were popular choices. However, concerns about potential complications like root fractures prompted a shift in treatment philosophy.

The advent of adhesive dentistry brought about the rise of resin composite core build-ups, offering a less invasive and more conservative alternative. The possibility of bonding restorative materials to dental tissue reduced the need to remove sound dental tissue. This shift in perspective allows for a more conservative approach, prioritizing tooth preservation while still providing sufficient strength and retention for long-term success.

POST OR NO POST

Preserving as much tooth structure as possible is a general prerequisite in modern dentistry. Therefore, omitting the use of a post must be considered, especially in cases where root dentine must be sacrificed to create sufficient space and access to insert the post. The decision to use a post should consider the following factors:

1. The amount and quality of the remaining tooth structure*
2. The presence of a ferrule effect
3. The clinician's experience

*Several studies suggest that in cases where an adequate amount of tooth structure remains and when the remaining tooth structure is of good quality, root posts may not be necessary.

THE AMOUNT AND QUALITY OF THE REMAINING TOOTH STRUCTURE

Preserving as much dental tissue as possible is the first requirement. The presence of at least two intact axial walls is considered ideal for optimal clinical outcomes. Teeth with no- or only one residual wall appear to have reduced survival rates compared to teeth with more than one wall.

THE PRESENCE OF A FERRULE EFFECT

The ferrule effect refers to the presence of a circumferential band of tooth structure encircling the coronal portion of the tooth. This effect has been shown to contribute significantly to the resistance of the restored tooth to fracture. Minimal ferrule dimensions are not set in stone. Some general recommendations can be given to help evenly distribute forces, resist occlusal forces, and give enough retention. The ferrule should ideally extend at least 2 mm above the cementoenamel junction, have a circumferential width of approx. 1 mm and a thickness of 1 to 1.5 mm. Finally, the axial walls should have a slight taper towards the occlusal plane.

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DENTAL ADVISOR AWARDS 2026

Smooth and quick procedures, enhanced patient experience, and great treatment outcomes – this is virtually every dental practitioner's goal. Kuraray Noritake Dental Inc. supports this ambition through continuous innovation in advanced dental materials and devices. Building on the success of the popular universal bonding agent CLEARFIL™ Universal Bond Quick, its successor CLEARFIL™ Universal Bond Quick 2, introduced in 2025, takes simplicity and performance to the next level.

CLEARFIL Universal Bond Quick 2 offers:
-    Rapid application with no waiting time and no need for rubbing
-    A strong and durable bond to enamel and dentin
-    A high-strength bonding layer with increased resistance to shrinkage forces
-    Maximum flexibility across a wide range of clinical indications
-    Minimized risk of pooling thanks to enhanced flowability and even spreading

DENTAL ADVISOR RESEARCH AWARD

Laboratory testing confirms consistent performance

Research conducted for the in-vitro evaluation demonstrated excellent bond strength to both enamel and dentin, even after artificial aging and under saliva-contaminated conditions. This highlights the adhesive's consistent performance in challenging, non-ideal clinical environments such as the oral cavity.

The evaluation also confirmed a thin film thickness (below 5 µm), supporting precise seating of indirect restorations and maintaining a strong, durable bonding interface. These results reflect the scientific rigor behind CLEARFIL Universal Bond Quick 2 and were a key factor in receiving the Dental Advisor Research Award, which recognizes outstanding physical property testing and innovation in dental materials.

DENTAL ADVISOR PREFERRED PRODUCT AWARD

Evaluators highlight smooth and efficient handling

CLEARFIL Universal Bond Quick 2 was also named a Dental Advisor Preferred Product, based on both laboratory data and extensive clinical evaluation resulting in a 98% overall clinical rating. Consultants particularly praised the product's rapid working time, enabled by a unique formulation combining the Original MDP with AMIDE and newly developed UTM monomers.

The ability to apply the adhesive and proceed immediately resonated strongly with evaluators: "Extremely quick application time that allowed me to get right to work. Every time-saving ability is ideal." With its low film thickness, easy handling, and predictable results, CLEARFIL Universal Bond Quick 2 integrates seamlessly into everyday clinical workflows while supporting consistent outcomes.

A RARE COMBINATION OF SCIENTIFIC EXCELLENCE AND REAL-WORLD CLINICAL VALUE

By earning both the Dental Advisor Research Award and the Preferred Product Award, CLEARFIL Universal Bond Quick 2 demonstrates a rare combination of scientific excellence and real-world clinical value. Its advanced bonding technology, ease of use, and dependable performance make it a compelling solution for clinicians seeking efficiency without compromise.

THE HEART OF THE UNIVERSAL EXCELLENCE PORTFOLIO

At Kuraray Noritake Dental Inc., we understand the demands of modern dental practices. Balancing complex procedures, tight schedules, and patient care is no easy task. That is why we have spent years refining our materials—so you can focus on what matters most: your patients.

Our Universal Excellence products simplify your workflow, offering you high-quality materials and tools that work seamlessly with your expertise. CLEARFIL Universal Bond Quick 2 forms literally the connection between several universal resin-based products of our portfolio.

For more information, visit Dental Advisor.