CLEARFIL™ Universal Bond Quick 2 est notre dernière avancée technologique en adhésion dentaire. Basé sur la performance fiable de son prédécesseur, cet adhésif de la prochaine génération incorpore une technologie novatrice qui apporte une multitude d'avantages remarquables. En combinant trois monomères clés dans notre propre technologie Advanced Rapid Bond, nous avons augmenté la fluidité et la force, mais aussi la résistance à la rétraction - tout en rendant le produit adapté à une conservation à température ambiante.

CLEARFIL Universal Bond Quick 2 fournit une solution rapide et fiable pour le scellement de pilier. Sa technologie d'adhésion avancée assure une adhésion forte, moins de micro-fuites et un scellement durable. Appliquez, séchez et polymérisez. Découvrez ce flux de travail efficace et prévisible qui protège le pilier et améliore la réussite de la restauration sur le long terme.

Workflow for sealing a prepared abutment tooth (for indirect restorations and CLEARFIL Universal Bond Quick 2.

CLEARFIL™ Universal Bond Quick 2 est notre dernière avancée technologique en adhésion dentaire. Basé sur la performance fiable de son prédécesseur, cet adhésif de la prochaine génération incorpore une technologie novatrice qui apporte une multitude d'avantages remarquables. En combinant trois monomères clés dans notre propre technologie Advanced Rapid Bond, nous avons augmenté la fluidité et la force, mais aussi la résistance à la rétraction - tout en rendant le produit adapté à une conservation à température ambiante.

Un temps de travail idéal. Inutile de secouer le flacon, de frotter, d'attendre ni d'appliquer plusieurs couches. Il faut seulement appliquer, sécher et polymériser.

PANAVIA™ SA Cement Universal transforme le collage en supprimant les étapes superflues. Pas besoin d'un apprêt séparé - appliquez tout simplement la colle et poursuivez votre restauration. Conçue pour exceller avec toute une série de matériaux restauratifs, dont la vitrocéramique, cette colle vous offre plus d'assurance quant à vos résultats.

Combinés, ces deux produits incarnent l'essence même de Universal Excellence, simplifiant votre flux de travail et vous offrant l'assurance de bons résultats, fiables et esthétiques.

Workflow for cementation of indirect restorations with PANAVIA SA Cement Universal and CLEARFIL Universal Bond Quick 2.

CLEARFIL™ Universal Bond Quick 2 est notre dernière avancée technologique en adhésion dentaire. Basé sur la performance fiable de son prédécesseur, cet adhésif de la prochaine génération incorpore une technologie novatrice qui apporte une multitude d'avantages remarquables. En combinant trois monomères clés dans notre propre technologie Advanced Rapid Bond, nous avons augmenté la fluidité et la force, mais aussi la résistance à la rétraction - tout en rendant le produit adapté à une conservation à température ambiante.

Un temps de travail idéal. Inutile de secouer le flacon, de frotter, d'attendre ni d'appliquer plusieurs couches. Il faut seulement appliquer, sécher et polymériser.

Ces améliorations s'inscrivent parfaitement dans la vision de Kuraray Noritake, celle d'un monde où vos matériaux et outils sont efficaces, faciles à utiliser et parfaitement coordonnés, où la complexité est réduite à un minimum et où vous disposez de suffisamment de temps pour vous concentrer sur ce qui compte le plus, à savoir les souhaits et besoins individuels de chacun de vos patients.

Pour y parvenir, nous nous attelons sans cesse depuis des décennies à rationaliser, améliorer et parfaire nos produits. Par une conception aboutie et la création de synergies entre différentes technologies, nous avons fait en sorte qu'ils se complètent et fonctionnent à l'unisson. Nous développons des solutions qui soutiennent les traitements doux, ciblés sur les défauts - gardant toujours à l'esprit que le bien-être de chaque patient est central dans les soins prodigués.

CLEARFIL™ Universal Bond Quick 2 est au cœur de la gamme Universal Excellence. En combinaison avec des produits Universal Excellence ou d'autres voire avec des ciments de résine des concurrents, il fournit d'excellents résultats.

Cette vidéo présente le flux de travail pour la restauration directe avec CLEARFIL MAJESTY ES-2 Universal et CLEARFIL Universal Bond Quick 2.

CLEARFIL MAJESTY ES-2 Universal a été développé pour s'affranchir de la sélection de teinte et améliorer l'efficacité clinique sans compromis en termes de résultats esthétiques. La gamme consiste en seulement trois teintes. La technologie de diffusion de la lumière améliorée permet au composite de se fondre naturellement dans la structure dentaire, ce qui réduit vos choix et augmente l'assurance d'un résultat réussi.

Interview with the team at Kuraray Noritake Dental Inc., who developed and brought to life this new universal adhesive.

Streamlining, enhancing and refining adhesive procedures – these are the aims of an 5-person team at Kuraray Noritake Dental Inc. in Japan. Recently, the team has developed a next-generation universal adhesive CLEARFIL™ Universal Bond Quick 2 that offers quick and easy application combined with an optimised bonding performance. To learn more about the goals and achievements of the development project, and the benefits of the product, we had a conversation with them.

From left to right: Ryo Matsuura and Ryota Murayama (R&D Department), Kazutoshi Ikeda (Production Department), Marina Okada and Yamato Nojiri (Planning & Development Department).

Why did you decide to improve CLEARFIL™ Universal Bond Quick?

Universal adhesives like CLEARFIL™ Universal Bond Quick are very well received by dental practitioners all over the world mainly due to their versatility and procedural simplicity. In the clinical setting, however, we have identified room for improvement. For example, it can be difficult to establish thin, uniform and strong bonding layers with the currently available products. Water and solvents in universal adhesives often limit the formation of a strong bond layer. A thin bonding layer and the relatively thick oxygen inhibition layer make this type of bonding agent susceptible to degradation by water sorption from dentinal moisture. Highly viscous bonding agents also complicate the ease of application in small cavities and can easily lead to pooling of the adhesive in critical parts of the cavity. Adhesives with a relatively high viscosity may pool or accumulate along margins, and may form a layer that is too thick and may change the morphology of the abutment tooth, a critical factor potentially affecting the fit of an indirect restoration. Generally, bonding agents with a low film thickness and/or are low-filled or unfilled, in turn have a potentially negative effect on the strength of the bonding layer. At Kuraray Noritake Dental Inc., we wanted to address the aforementioned issues and have developed a universal adhesive that is easy to apply and facilitates the establishing of thin, uniform bonding layers exhibiting high strength.

What are the indications of CLEARFIL™ Universal Bond Quick 2?

The new universal adhesive is indicated for bonding procedures in the context of creating direct restorations with light-cured composite, sealing of a prepared cavity or abutment tooth as a pretreatment for indirect restorations, treatment of exposed root surfaces and hypersensitive teeth, and also the intraoral repair of fractured restorations. Furthermore, the product is a suitable adhesive in post-cementation and core build-up procedures as well as in adhesive cementing of indirect restorations. When used in the context of the cementing of indirect restorations, the bonding to tooth structure of PANAVIA™ SA Cement Universal and of other manufacturers’ self-adhesive resin cements improves, leading to higher bond strengths.

What are the corresponding general benefits of CLEARFIL™ Universal Bond Quick AND CLEARFIL™ Universal Bond Quick 2?

The general benefits of both products are that they may be used with any etching procedure, plus the fact that there is no need to wait for the adhesive to penetrate the tooth structure after application. In addition, both products contain the original MDP monomer and the amide monomer, responsible for the formation of a thin and strong surface coating. Both products exhibit low technique sensitivity and are suitable for a wide range of indications. Finally, the adhesive monomers and fluoride offer extra protection to the underlying dentin.

Monomer image from the brochure

You mentioned the original MDP monomer as one of the essential components of the new adhesive and its predecessor. Is there a difference between this original MDP monomer and other MDP monomers available on the market?

Our MDP monomer is the only MDP monomer that is manufactured using the originally developed synthesis and purification process. Research has shown that the way MDP is manufactured has indeed an impact on the performance of the monomer itself1. While impurities and dimers detected in MDP monomers synthesized elsewhere negatively affected the immediate and aged micro-tensile bond strength in the in-vitro study, our MDP monomer shows high purity and more favourable test results.

Most universal adhesives need to be rubbed into the tooth structure extensively for 10 to 20 seconds. What did you do to eliminate the waiting time independent of the etching procedure, which led to an ultra-quick application procedure?

It is the amide monomer which is mainly responsible for an improved penetration speed into the tooth structure. The hydrophilicity of this monomer is much higher than the hydrophilicity of the HEMA monomer that is typically used. This provides for a better penetration into the moist dentin. The amide monomer’s polymerisation characteristics are better, and, following polymerisation, leads to higher stability in a wet environment due to the formation of a highly cross-linked polymer network. In combination with MDP, an efficient long-term performance will likely be achieved. For optimal outcomes, the adhesive is simply rubbed into the tooth structure as described in the IFU: “Apply BOND with a rubbing motion to the entire cavity wall with the applicator brush. No waiting time is required.”

What are the additional benefits that CLEARFIL™ Universal Bond Quick 2 has to offer?

First of all, we improved the viscosity and film thickness by optimizing the manufacturing method. The thin adhesive layer prevents pooling in the cavity, around abutments and along margins, creating a uniform bonding layer. Simply put, the new adhesive is applied thinly and spreads evenly. At the same time, the product offers high mechanical strength and excellent resistance to water sorption. Its bond strength is high in all etching modes and the new formulation allows for the product to be stored at room temperature.

Please explain the clinical benefit of an improved mechanical strength.

The risk of decreasing the film thickness lies in a possible decrease in the strength of the bonding layer which can lead to reduced bond durability. By introducing a new multifunctional urethane methacrylate monomer, we have been able to increase the strength. The effective advantage of the new bonding agent is that it can easily be used in small, difficult-to-access cavities or in cavities with complex morphology. The result is a thin yet strong adhesive layer that also allows for easy placement of any type of restoration.

How did you manage to improve the storage conditions?

Component stability was not an issue with CLEARFIL™ Universal Bond Quick. However, for a stable viscosity, it needed low-temperature storage. By optimizing the manufacturing method and decreasing the viscosity of CLEARFIL™ Universal Bond Quick 2, storage at room temperature became possible.

Was it difficult to integrate the new components and keep the existing benefits? How did you manage?

Integrating new components and removing others always means that the whole formulation needs to be rebalanced properly. This was particularly challenging for the multifunctional urethane methacrylate monomer we wanted to add. It improves the strength and hardness of the universal adhesive, but may affect adhesion depending on the amount of the compound in the formulation. Consequently, we needed to carefully find optimal balance, which took some time and required thorough testing, but in the end, we succeeded.

At the moment, the immediate dentin sealing technique is popular in indirect restoration procedures. What makes CLEARFIL™ Universal Bond Quick 2 suited for this technique?

Immediate dentin sealing is indeed a popular and useful technique that can result in significantly increased retention, reduced marginal leakage, improved bond strength, and less postoperative sensitivity. Using CLEARFIL™ Universal Bond Quick 2 in this context is beneficial as the procedure is quick, the resulting bonding layer is thin and strong, and the dentin is effectively protected.

Why should a dental practitioner switch to CLEARFIL™ Universal Bond Quick 2?

For users of CLEARFIL™ Universal Bond Quick, switching to CLEARFIL™ Universal Bond Quick 2 is worthwhile, as it offers additional advantages and improved performance while retaining the benefits of its predecessor. For users of other universal adhesives, the major benefit lies in the shortened application time: CLEARFIL™ Universal Bond Quick 2 is the only universal adhesive that can achieve a high bond strength and a high-strength bonding layer without any waiting time. In addition, it is suitable for a wide range of indications including core build-up procedures and cementation.

Thank you very much for these insights!

References
1. Yoshihara K, Nagaoka N, Okihara T, Kuroboshi M, Hayakawa S, Maruo Y, Nishigawa G, De Munck J, Yoshida Y, Van Meerbeek B. Functional monomer impurity affects adhesive performance. Dent Mater. 2015 Dec;31(12):1493-501.

Case by Dr. Julien Molia

UNE NOUVELLE GÉNÉRATION DE FLUIDES

Heureusement, cela a changé : À ‚l‘instar de CLEARFIL MAJESTY™ ES Flow et CLEARFIL MAJESTY™ ES Flow Universal (tous deux de Kuraray Noritake Dental Inc.), plusieurs composites fluides de la dernière génération sont dotés de propriétés mécaniques équivalentes à celles de nombreuses alternatives compactes. Ainsi, le champ des indications est large. Par exemple, CLEARFIL MAJESTY™ ES Flow Universal présente selon la fabricant une charge élevée de 75 à 78 % en poids, une résistance à la flexion supérieure à 150 MPa et une résistance à la compression dépassant 370 MP. Grâce à sa résistance élevée, il constitue une solution fiable et permanente, qui convient même pour les zones avec tensions en flexion comme les surfaces occlusales des dents postérieures.

Ce composite fluide a toutefois encore plus à offrir : Il est disponible en deux niveaux de fluidité – LOW et SUPER LOW – pour répondre à un plus grand nombre de préférences personnelles et besoins individuels spécifiques à une indication et en seulement deux teintes (universal et universal dark). Ce concept de deux teintes offre l‘avantage d‘une sélection des teintes intuitive, même dans la zone antérieure, et est rendu possible par un mélange de technologies de correspondance des teintes comprenant la technologie optimisée de diffusion de la lumière et une translucidité semblable à celle de l‘émail.

L‘exemple de cas suivant dévoile comment CLEARFIL MAJESTY™ ES Flow Universal me facilite la vie dans les procédures de restauration postérieure.

EXEMPLE DE CAS

Ce patient s‘est présenté pour le remplacement de deux restaurations en amalgame dans les molaires mandibulaires droites (dents #46 et #47 selon la notation FDI) (Ill. 1). Afin de simplifier le remplissage et l‘adaptation aux parois de cavité, j‘ai décidé d‘utiliser CLEARFIL MAJESTY™ ES Flow Universal LOW en tant qu‘unique matériau restauratif. La position des dents à restaurer a rendu la sélection de teinte facile : La teinte U (universal) est conçue pour parfaitement fonctionner pour toutes les restaurations postérieures.

Les restaurations en amalgame ont été retirées et les caries excavées, avec conservation d‘autant de structure dentaire saine que possible (Ill. 2 et 3). Une technique de mordançage sélectif pour l‘émail a été choisie, suivie de l‘application d‘un adhésif universel (CLEARFIL™ Universal Bond Quick 2, Kuraray Noritake Dental Inc.). Puis, CLEARFIL MAJESTY™ ES Flow Universal en version LOW et dans la teinte sélectionnée a été appliqué dans les cavités (Ill. 4). Grâce au concept de seringue innovant, le composite f luide appliqué est littéralement sans vides. Suivant le mode d‘emploi du produit, l‘épaisseur de chaque couche ne dépassait pas les 2 millimètres afin d‘assurer une polymérisation complète (Ill. 5 et 6), ce qui a un impact déterminant sur la performance des restaurations finales sur le long terme. Chaque couche doit être polymérisée soigneusement pendant 10 à 20 secondes (en fonction de la lampe de polymérisation) avant l‘application de la couche suivante. Comme le montre l‘illustration 7, la faible fluidité du matériau sélectionné autorise un certain degré de modelage de la morphologie de surface occlusale. Quand il faut restaurer davantage de détails anatomiques, la variante plus solide SUPER LOW est envisageable. Il n‘a fallu que quelques secondes pour polir les restaurations en haute brillance (Ill. 8).

Ill. 1: Deux restaurations en amalgame à remplacer

Ill. 2: Situation après retrait des restaurations en amalgame existantes.

Ill. 3: Une tâche typique d‘amalgame est visible au fond de la plus grande cavité.

Ill. 4: Procédure de remplissage : application de la première couche de composite fluide.

Ill. 5: Seconde molaire déjà remplie, première molaire en attente d‘une autre couche de composite fluide.

Ill. 6: Remplissage terminé.

Ill. 7: Belle morphologie de surface dans laquelle s‘est fondue la teinte.

III. 8: Résultat du traitement après retrait de la digue en caoutchouc. Les restaurations se fondent joliment dans les dents alentour sur le plan de la teinte et du brillant.

ALTERNATIVE FACILE AUX COMPOSITES COMPACTS

En particulier dans les zones difficilement accessibles dans la bouche, l'utilisation d'un composite fluide avec des propriétés mécaniques bien équilibrées peut être une bonne alternative aux produits compacts. Les capacités avancées de correspondance des teintes, l'application littéralement sans vides, l'adaptation et le modelage aisés, ainsi que le polissage rapide simplifient réellement la vie du praticien dentaire.

Dentist:

JULIEN MOLIA

Diplômé en 2008 avec une thèse sur l’implantologie assistée par ordinateur, le Dr Julien Molia a établi une cabinet dentaire à Saint-Jean-de-Luz, où il se focalise sur la chirurgie implantaire et la reconstruction maxillaire. En 2017, il obtient un second diplôme universitaire en implantologie pour actualiser et approfondir son expertise. Il a également suivi une formation avancée dans le domaine de la dentisterie numérique, des mini-vis orthodontiques et de la chirurgie muco-gingivale. Très soucieux de la préservation des tissus, il s’est formé en privé auprès des Dr Gil Tirlet et Jean-Pierre Attal à Paris. Le Dr Molia est membre fondateur de Sud-Ouest BioTeam un groupe collaboratif français dédié à la recherche clinique et à l’innovation.

Case by Kostia Vyshamirski, DT

KATANA™ Zirconia YML AND CERABIEN™ MiLai

Virtually every patient in need of restorative treatment desires functional restorations with an aesthetic appearance. However, the individual expectations and needs may be very different depending on the clinical situation (state of the natural tooth structure, parafunctional behaviour, periodontal health etc.), the patient’s financial resources and personal preferences. A versatile material combination fulfilling many different needs and desires is KATANA™ Zirconia YML finished using micro-layering with the new CERABIEN™ MiLai (both Kuraray Noritake Dental Inc.).

This system supports low invasive preparations due to a favourable minimum wall thickness of the merely monolithic multi-layered zirconium oxide prosthesis and a minimal thickness of the porcelain layer in the aesthetic zone. Moreover, the high strength zirconium oxide prosthesis combined with only a very thin layer of porcelains makes this technique extremely useful in patients with parafunctional habits like bruxism. Last but not least, consisting of a carefully compiled selection of internal stains and porcelain shades, CERABIEN™ MiLai supports the creation of individual 3D shade effects that mimic those of natural teeth even when space is limited. The following case example reveals how this is possible.

INITIAL SITUATION

The patient presented with concerns related to both function and appearance. During the diagnostic phase, it was determined that increasing the vertical dimension of occlusion (VDO) and creating a wax-up in the new jaw position would be necessary to improve both the occlusion and the aesthetic appearance of the smile.

Fig. 1. Intraoral scan of the maxillary teeth revealing severe tooth wear.

Fig. 2. Intraoral scan of both jaws confirming the need for an increase of the VDO.

Fig. 3. Intraoral scan: Occlusal view of the maxillary teeth.

TREATMENT PLANNING AND COMPUTER-AIDED DESIGN

Following the approval of the wax-up, the treatment plan was created. It consisted of restoring the four anterior incisors with zirconia crowns and performing direct composite restorations on the posterior and lower teeth. To conserve as much of the healthy tooth structure as possible, the space created was aligned to the required wall thickness of the planned restoration (framework + micro-layer of porcelain in the vestibular areas only). Following an aesthetic analysis, the crowns were designed with a minimal vestibular cutback. This was due to the patient’s functional problems, which would increase the chipping risk in case of using a more heavy cutback design with a thicker, more conventional porcelain layer. KATANA™ Zirconia YML offers exceptional aesthetics, requiring only a 0.3 mm reduction for the porcelain to achieve natural results. Therefore, it was the logical material choice for this specific case.

Fig. 4. Minimally invasive preparations for the crowns.

Fig. 5. Occlusal view of the preparations.

Fig. 6. Aesthetic analysis – a crucial step for achieving the desired new smile.

Fig. 7. Frontal view of the crowns in their final cutback design.

Fig. 8. Lateral view of the crowns in the CAD software.

CROWN PRODUCTION

Immediately after milling, the zirconia surface was treated with effect liquids. This kind of pre-sintered characterization helps enhance the characteristics of zirconia restorations. In the presented case, orange stain was applied to the cervical area, while a blue stain was used at the incisal edge. In addition, a white opaque liquid was applied to the inner surface of the central zirconia crowns to block out any discolouration from the underlying tooth structure. Following final sintering, the vestibular layer of porcelain was built up with CERABIEN™ MiLai using a combination of internal stains and porcelain micro-layering. After morphological adjustments and surface polishing, the restorations were completed by applying CERABIEN™ ZR FC Paste Stain and Glaze. Final polishing was then performed to enhance the natural appearance of the surfaces.

Fig. 9. Effect liquids applied to the cervical and incisal areas of the crowns.

Fig. 10. Treatment of the central incisor crowns’ inner surfaces.

Fig. 11. KATANA™ Zirconia YML framework after sintering.

Fig. 12. CERABIEN™ MiLai Internal Stains and Porcelains.

Fig. 13. Prepared vestibular surfaces ready for application of the internal stains.

Fig. 14. Application of 0.2-0.3 mm layers of CERABIEN™ MiLai porcelain: CCV2 for the cervical area, LT1 – Creamy Enamel for the main body and luster, LTX at the incisal edge.

Fig. 15. Frontal view of the final restorations on the model.

Fig. 16. Lateral view of the final restorations on the model.

Fig. 17. Polished and glazed palatal surfaces of the crowns.

FINAL OUTCOME

The finalized restorations showcase great details, crafted with CERABIEN™ MiLai internal stains and porcelains. The result are natural-looking restorations. An additional benefit of using zirconia as a restorative material is its excellent compatibility, which is evident in the healthy gingival conditions.

Fig. 18. Restorations in place.

Fig. 19. Natural-looking restorations in the patient’s mouth.

Dental Technician:

KOSTIA VYSHAMIRSKI

DT Kostia Vyshamirski, Riga, Latvia

After earning his Dental Technician Certificate from the Medical College in Minsk, Belarus, in 2014, Kostia began his career as a dental technician, focusing on aesthetic clinical cases that integrate the latest digital and manual technologies. Moving to Riga, Latvia, in 2015 greatly expanded his professional opportunities.

With over a decade of experience, Kanstantsin Vyshamirski now conducts courses, lectures, and seminars worldwide. He is a member of the DTG (Dental Technician Guild), a professional group of dental technicians based in the USA, and an invited guest of the AAED (American Academy of Esthetic Dentistry), an exclusive, invitation-only organization.

Operating his own lab in Riga, Latvia, Kanstantsin specializes in aesthetic prosthetic porcelain work and is an experienced, passionate user of KATANA™ Zirconia and Noritake porcelains.

CERABIEN™ MiLai in Daily Use

A tooth with crack lines, a characteristic round shape, age-related changes, or medication-induced discoloration — there’s no one-size-fits-all solution when it comes to all-ceramic anterior restorations, even when the porcelain system and production technique are defined.

To support technicians who wish to simplify their layering workflow using the micro-layering technique and CERABIEN™ MiLai — whether just getting started or looking to refine their process — we’ve collaborated with DT Dumitru Leahu to create a Chroma Map Catalogue featuring seven typical anterior restoration scenarios.

Each case example includes a detailed screenshot of the framework design, chroma maps outlining the planned steps, images of internal staining and micro-layering procedures, and the final restoration on the model. You’ll also find essential information about the selected framework material, target shade, and other relevant details.

We invite you to use the CERABIEN™ MiLai Catalogue as a step-by-step guide to success or simply as inspiration for individual cases. It offers a fast track to understanding the material’s optical properties and will make planning your next micro-layering case more intuitive. No need to start from scratch — instead, adapt what’s already there and gradually develop your own maps and techniques.

Interested in the CERABIEN™ MiLai Chroma Map Catalogue?

Download it here!