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.

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!

Interview with Takehiro Kameya
Manager of the Technology Division of Kuraray Noritake Dental Inc.

How did you identify the need for a universal flowable restorative?

Packable composites with a universal shade concept are becoming increasingly popular worldwide. This fact made us assume that there is a demand for the flowable type as well. Users will also benefit from simplified procedures and a reduced number of shades to be stocked, with a positive impact on inventory management. Accordingly, we introduced the universal flowable composite in Japan, where it already holds a significant market share. Users have been utilizing it for various cases with excellent feedback. As it turned out to be very well received in Japan, we approached the European team to extend the release area to Europe, and the decision was made to launch it. We pushed forward with commercialization in an ultra-short period of about one year.

Does it really create added value to use a universal flowable composite in addition to the universal packable variant?

Yes, several benefits arise from the additional use of a modern flowable composite. This is because – unlike earlier products – the latest generation of flowable composites offers sufficient mechanical strength to be used for regular restorations. The advantages of using a flowable composite include the ability to flow into even the narrowest parts of a (sometimes complex) cavity, which provides for easy and quick filling procedures, and to an intimate adaptation at the adhesive interface leading to a tight seal.

What are the differences between CLEARFIL MAJESTY™ ES Flow and CLEARFIL MAJESTY™ ES Flow Universal?

CLEARFIL MAJESTY™ ES Flow Universal maintains the distinctive features of CLEARFIL MAJESTY™ ES Flow, such as convenient dispensing, handling and sculpting, extremely easy and quick polishing, long-lasting gloss and great mechanical properties. Due to their high strength, both products can be used not only as liners, but also for regular direct restoration procedures. The difference lies in the shade concept. CLEARFIL MAJESTY™ ES Flow Universal introduces a universal shade system, allowing it to adapt to a wide range of colour tones with fewer shade variations.

Please describe the shade concept behind CLEARFIL MAJESTY™ ES Flow Universal. How many shades are available and how are they selected?

The CLEARFIL MAJESTY™ ES Flow Universal line-up consists of two shades: Universal (U) and Universal Dark (UD). U is an excellent choice for all posterior restorations, independent of the target shade. In the anterior region and cervical area (Class III, IV and V cavities), U is best suited for restoring teeth of the shades A1 to A3 (including B1, B2, C1, C2, D2, D2, D3 and D4), while UD is the shade of choice to match the target shades A3.5 to A4 (including B3, B4, C3 and C4).

Color matching with anterior and posterior restorations.

Why do you offer an additional shade for the anterior region?

Universal-shade composites need to take on the colour of the surrounding tooth structure to deliver a perfect match for a great number of target shades. In the posterior area, large amounts of surrounding tooth structure are usually available with several cavity walls still present. This facilitates the taking on of the tooth colour compared to cavities in the anterior region. Here, light easily passes through, so that the colour of the composite itself is more likely to be reflected. This can lead to limitations in colour matching. In the case of CLEARFIL MAJESTY™ ES Flow Universal, the U shade that turned to be ideal for the posterior area showed some colour-matching limitations in anterior restorations of darker teeth. Hence, we decided to offer a second colour option specifically designed for these situations. With U and UD, CLEARFIL MAJESTY™ ES Flow Universal offers great colour adaptability from light to dark shades and hence addresses the need for precise colour matching especially in the anterior region.

Developing just two shades of composite to cover so many target tooth shades sounds challenging. How did you evaluate whether the available shades are appropriate in the clinical environment?

Indeed, it has been quite challenging to develop the U shade, which is able to match a wider range of tooth colours for both anterior and posterior teeth than the U shade of CLEARFIL MAJESTY™ ES-2 Universal. In order to evaluate and fine-tune the shades we developed, we repeatedly conducted filling tests using a wide range of experimental shades in artificial teeth and extracted teeth of various tooth colours. Additionally, the final selection of shades was visually evaluated by consulting dental practitioners who used the composite in the clinical setting.

What are the greatest challenges in the context of determining and selecting the right shade in the clinical environment?

The major drawback of classical shade determination is that it simply increases the chair time. For both, the dental practitioner and the patient, however, minimizing chair time is the ultimate goal, as it reduces costs and increases patient comfort. A true drawback in terms of time and comfort is a colour mismatch produced due to an error during shade determination: it may necessitate intra-oral adjustments or, in the worst case, the creating of a new restoration.

CLEARFIL MAJESTY™ ES Flow Universal is available in two viscosities – Low and Super Low. Why is this the case and what is the difference in use?

We decided to offer two types of flowability with different thixotropic properties to cater to users’ preferences in terms of handling. Basically, there is no difference in usage between Low and Super Low. However, users are encouraged to use composites with different thixotropic properties according to their preferences and the specific case. For example, Super Low is useful for shaping the occlusal surface of posterior teeth. Low can be widely used for applications such as lining and filling in the cervical area and on proximal surfaces.

CLEARFIL MAJESTY™ ES Flow Universal – Great mechanical properties.

What are the technologies behind CLEARFIL MAJESTY™ ES Flow Universal that provide for a great blend-in?

The probably most popular technology used in this product is our proprietary Light Diffusion Technology. We determined the optimal light diffusion based on the observation that a strong diffuse reflection of incident light results in whitening, and weak light diffusion makes it easier to take on dark colours in the oral cavity, darkening the filling site. In addition, we focused on chroma adjustment: The universal shade concept is based on the ability to take on the colour of the surrounding tooth structure and blend with it. Therefore, we have set the chroma to be easily harmonized with a wide range of tooth shades. Finally, the translucency of the material was adjusted via its submicron fillers and silica clusters. Evaluation by key opinion leaders supported us in determining an appropriate level of translucency.

How to proceed in cases with discoloured tooth structure underneath – is there a need for masking with a blocker or opaquer?

The necessity depends on the degree of discolouration. Due to the light diffusion properties of CLEARFIL MAJESTY™ ES Flow Universal, it is generally believed that blocking is not required, and shading can be achieved. However, in cases of severe discolouration, it may be beneficial to fill the bottom of the cavity with A2D or A3D shades of CLEARFIL MAJESTY™ ES Flow, or to use CLEARFIL™ ST Opaquer.

What did you do to avoid void formation during application?

We have adopted the same packaging design used in CLEARFIL MAJESTY™ ES Flow to avoid void formation in this product as well. The innovative container design minimizes the gap between the needle tip and the syringe when the tip is attached.

Are there any recommendations of when to use CLEARFIL MAJESTY™ ES Flow and when to opt for CLEARFIL MAJESTY™ ES Flow Universal?

While the universal variant can be used for general lining and filling applications as described in the instruction for use, CLEARFIL MAJESTY™ ES Flow is recommended for those cases in which the tooth structure is covered and the colour of the entire tooth needs to be changed. Direct veneers are a perfect example. In those situations, the use of different shades and opacities is clearly beneficial.

What is the future of flowable composites?

As information on clinical performance and physical properties data continues to spread, the trust in flowable composites is expected to increase in Europe, leading to its expanded usage. Furthermore, an increased demand is anticipated due to the development of filling methods using flowable composites in conjunction with moulds or matrices.

TAKEHIRO KAMEYA

Interview with Ghaith Alousi, DT

He inspires dental technicians with his passion and creativity as a course instructor, and with Nature Style, he has developed a well-conceived concept for the creation of lifelike anterior restorations. We are talking about Ghaith Alousi, a dental technician based in Wiesbaden, Germany. While course participants usually attend his training courses eager to learn from his experience and technical knowledge, they often return to their laboratories bursting with positive energy, truly inspired and deeply motivated to break new ground.

Ghaith Alousi, what is the dental technician’s primary mission?

In my eyes, dental technicians are not artists; rather, their primary mission is to replicate nature – both functionally and aesthetically. Every tooth, like every patient, is as unique as a fingerprint. To recreate a natural tooth as accurately as possible, we must listen, observe, and understand. To truly perceive the details that matter, however, we need to know where to focus our attention. In my opinion, the three golden keys to anterior aesthetics are paramount: balanced translucency and opacity, morphology, and surface texture.

What about colour?

While colour is undoubtedly a crucial aspect, I believe it is often overemphasized. Many dental technicians focused on aesthetic anterior restorations find themselves preoccupied solely with colour. However, natural teeth – the model we aim to replicate – embody far more than just a blend of hues.

First and foremost, we must understand how light interacts with teeth. They diffuse light in a unique manner, with different layers of enamel and dentin each possessing distinct optical properties. Additionally, the individual shape and surface texture of a tooth significantly affect the perceived attractiveness of a patient’s smile and overall facial appearance. Therefore, I have learned to prioritize these elements, observing nature closely and striving to comprehend what I see before embarking on the replication process.

Fig. 1. Light-optical properties of natural teeth imitated with KATANA™ Zirconia YML, Esthetic Colorant and CERABIEN™ ZR porcelain (Kuraray Noritake Dental Inc.).

Let’s take a brief look at each of the three golden keys, starting with the light-optical properties.

To truly grasp how light interacts with natural teeth, we must first examine their structure. Natural teeth consist of various layers, each displaying unique light-optical behaviours, with enamel and dentin being the most significant. Upon closely observing the dentin core of a tooth, we realize it is not only responsible for the tooth’s fundamental colour but also exhibits distinct opacity – it does not transmit light; instead, it reflects and absorbs it. In contrast, enamel presents a different scenario: its thickness varies with factors such as the patient’s age, but it is consistently highly translucent. This translucency allows a portion of light to pass through, with only a minimal amount reflected or absorbed.

Once we have a solid understanding of the natural light dynamics inherent in a patient’s teeth, the next step is to replicate these characteristics using selected materials. Thus, comprehending the light-optical properties of available materials, choosing them wisely, and applying them effectively are crucial milestones on the path to success.

What about morphology?

I firmly believe that mastering morphology – the replication of natural tooth shapes – can significantly impact a dental technician’s work. The growing popularity of carving workshops in Japan and other parts of the world reinforces this idea. Aspiring technicians avoid using standard dental libraries that produce generic smiles for their patients. Rather than traveling long distances to attend workshops and build our own mental library of tooth shapes, we can explore the intricacies of form and shape right in our dental laboratories through careful observation and consistent practice. Some technicians capture images of the teeth they encounter, while others concentrate on their own teeth or those of colleagues and patients. This approach allows for the replication of shapes using materials like wax or ceramics. By honing our observation and replication skills, we expand our personal knowledge base. This commitment to detail fosters true mastery – a continuous journey toward perfection.

Fig. 2. Example of a natural surface texture reproduced with CERABIEN™ MiLai and different diamond burs, stones and rubber polishers.

Is surface texture similarly important?

Absolutely. The surface texture of a restoration, even more than its hue, must precisely match that of surrounding or opposing teeth to achieve a natural appearance. To accomplish this, we must understand and replicate the intricate interplay of micro- and macrotextures that create a tooth’s natural look. Macrotexture encompasses the tooth’s overall surface characteristics, including varying concavities, convexities, line angles, and vertical V-shaped grooves. In contrast, microtexture focuses on finer details, such as growth lines (striae of Retzius), perikymata, small grooves, and the degree of surface gloss. A keen eye is essential to replicate every surface detail harmoniously so that light interacts optimally, creating reflections, shadows, and highlights exactly where they are needed.

Fig. 3. Large tooth created with CERABIEN™ ZR.

How do you practice?

To practice replicating surface texture and morphology, I typically start with enlarged model teeth, first using wax and later transitioning to my preferred dental materials and instruments. The increased size of the working base allows for easier detection, reproduction, and assessment of relevant morphology and surface details compared to original-sized tooth forms. This enlargement also facilitates the evaluation of light-optical properties. For the final assessment, I often apply silver or gold powder to the surface of the model tooth, which highlights even the finest surface nuances. This method makes it easy to identify areas that are well-executed and those that may need improvement.

Fig. 4. Gold powder applied to anterior restorations …

Once I achieve a high level of quality with the enlarged model teeth, I transfer the acquired skills to real-life applications by working with actual-sized teeth. This practice framework allows me to continuously enhance my basic skills. Moreover, each time I start working with a new instrument or material, this approach streamlines the initial learning curve, quickly elevating my performance to a high standard.

Fig. 5. … to evaluate their shape and surface texture.

What are your preferred material combinations for different indications / needs?

For cases with highest aesthetic demands, CERABIEN™ ZR (Kuraray Noritake Dental Inc.) is my favourite porcelain system. I This system can be utilized either as a standalone solution for producing veneers using the refractory die technique or in conjunction with a zirconia framework – typically crafted from KATANA™ Zirconia variants such as KATANA™ Zirconia UTML, STML, HTML Plus, or YML (also from Kuraray Noritake Dental Inc.) – in a full layering approach.

I frequently employ this combination to produce single crowns in the anterior region, selecting the framework material based on the colour of the underlying tooth structure and the appearance of adjacent teeth. An alternative approach is layering with CERABIEN™ MiLai, which consists of internal stains and porcelains compatible with zirconia and lithium disilicate. I prefer to combine this system with the previously mentioned zirconia variants or with lithium disilicate, predominantly using the porcelain to replicate enamel. Sometimes, I employ the system’s internal stains to enhance the result with natural colour effects.

Apart from observing closely, selecting appropriate materials and copying carefully, are there any additional factors decisive for great treatment outcomes from the technician’s point of view?

To my mind, there are two additional essential factors: Proper interaction and communication within the restorative team and personal interaction with the patient. Especially in the highest aesthetic demand cases, meeting a patient in person is very important. They are usually invited to visit the dental laboratory twice, prior to treatment planning and for try-in. Nothing can replace personal interaction with them and a genuine impression of the initial situation. After all, we need to give them a sense of security and build trust, while analysing their character, facial characteristics, skin colour and more allows us to produce perfectly matching restorations.

Fig. 6. Full layering approach with CERABIEN™ ZR on a KATANA™ Zirconia YML framework.

And the restorative team?

We share a common goal: to fulfil the desires of our patients. I firmly believe that achieving this requires a united effort from the entire team. Collaboration hinges on appreciative and open communication at all levels and demands absolute honesty. Furthermore, everyone involved must be committed to continuously developing their skills.

I hold high expectations not only for my own work but also for the contributions of each dentist in our team. After all, their work forms the foundation of what I do. For example, when a dentist invests in an intraoral scanner and starts providing digital records, it is my responsibility to verify whether the quality of those scans meets our high standards. If I notice that the quality could be improved, I approach the situation with respect, offering constructive feedback and guidance to help them deliver quality scans consistently. This is crucial, as high-quality scans are the prerequisite for creating outstanding restorations.

In my experience, most dental practitioners appreciate this kind of honest and supportive communication. It creates an environment where we can all grow and evolve together.

Do you have any additional comments?

Be authentic, strive for excellence, and approach each day as an exhilarating opportunity. Courage plays a vital role, too – the readiness to venture beyond your usual routines, such as experimenting with different shades to discover new possibilities, fosters growth. Even if the outcome does not meet your expectations, there is valuable insight to gain from the experience that can guide you in the future. To reach new horizons, be open to exploring uncharted paths.

Dentist:

GHAITH ALOUSI

Ghaith Alousi, born in 1994, successfully completed his training as a master dental technician in 2013 in Damascus, Syria, where he gained initial experience in a dental laboratory. From 2014 to 2016, he worked independently in Damascus, using his craftsmanship to produce ceramic work such as frameworks, veneers, crowns and bridges, and implant-based restorations. He also engaged in shade determination, photography, and CAD/CAM technology.

He came to Germany in 2016 and quickly felt at home. Through further education, he has continuously expanded his knowledge and skills and is currently working as a dental technician in Wiesbaden. To achieve the best possible results, Ghaith Alousi places great value on collaboration with dentists and personal contact with patients.

Seamless, streamlined cooperation between dentist and dental technician is a recipe for success. The KIZUNA Symposium (Japanese for “bond, connection between people”) explores precisely that. Here are five key reasons you shouldn’t miss it:

1  A UNIQUE EXPERIENCE

KIZUNA is more than an event – it is a philosophy of collaboration. It brings together dentists and dental technicians, creating a shared space for dialogue, learning, and inspiration. Different perspectives converge in one direction: effective and harmonious patient care. The symposium features joint sessions at the beginning and end of the day, with separate sessions for dentists and dental technicians in between.

2  EXCELLENT SPEAKERS

Moderated by the inspiring Dr. Agnieszka Pacyk, the symposium brings together 14 leading professionals from across Europe. Expect scientific excellence, state-of-the-art technologies, the power of AI, new approaches, and plenty of practical tips and tricks. Learn from the very best – for example, MDT Nondas Vlachopoulos and MDT Antonio Corradini, who will conclude the day with a two-hour lecture on excellence in dentistry through outstanding cooperation.

3  NEXT-LEVEL NETWORKING

On the evening before the KIZUNA Symposium, a unique social gathering will set the tone for the day ahead. Guests will enjoy an exclusive dinner featuring authentic Japanese cuisine, blending refined flavours with artistry and elegance. This special evening will not only delight your senses, but also create the perfect atmosphere for networking and informal conversations with colleagues, lecturers, and fellow participants from across Europe. To make the night even more memorable, special attractions inspired by Japanese culture will be offered.

4  SUPERB VENUE AND ACCOMMODATION POSSIBILITIES

The ICE Kraków Congress Centre is a modern and prestigious venue that will become the heart of the KIZUNA symposium. Located in the very center of Kraków, will provide an inspiring setting for dialogue, innovation, and the exchange of expertise, blending Japanese precision with European openness. Near the ICE, you’ll find a wide selection of hotels within walking distance, offering both convenience and comfort throughout your stay. These hotels are not only ideally located for the event, but also nestled close to Kraków’s historic landmarks, allowing you to experience the city’s charm.

5 BEAUTIFUL KRAKÓW

Discover Kraków, a UNESCO World Heritage gem. The city is rich in history and charm – from the iconic Wawel Castle to the vibrant Cloth Hall in the Main Market Square. Stroll through historic districts like Kazimierz and Podgórze, relax in the greenery of Planty Park, and uncover hidden treasures throughout the city. Whether tasting traditional pierogi or admiring Gothic architecture, Kraków offers countless unforgettable experiences.

For more information click here.

See you in Kraków!

Achieving consistent, high-quality ceramic restorations requires more than just premium materials — it demands a deep understanding of your tools and processes. The CERABIEN™ MiLai Firing Guide is designed to help dental technicians unlock the full potential of this advanced micro-layering porcelain system. With tips on optimal furnace positioning, trial baking, and troubleshooting, this guide supports efficient, aesthetic results every time. Whether you're new to CERABIEN™ MiLai or looking to refine your firing process, this resource lays the groundwork for success.

CLEARFIL MAJESTY™ ES Flow (Low) WINS AWARD FOR THE TENTH TIME

Again, CLEARFIL MAJESTY™ ES Flow (Low) has been named a Top Product by Dental Advisor in 2025. This recognition was announced in the January/February 2025 issue of the publication, which highlights dental materials and equipment that deliver top-notch, practice-based performance. The medium viscosity version—Low of CLEARFIL MAJESTY™ ES Flow—was honored as the Top Product in the category Direct Restoratives – Composite: Highly-Filled Flowable. In Europe, the material is available in three distinct flowability levels.

PROPERTIES IN A NUTSHELL

Rather than restricting practitioners to a single viscosity that may not suit all flowable composite needs, CLEARFIL MAJESTY™ ES Flow offers a range of options. The product includes one version firm enough to stay in place when applied, another malleable enough to be shaped, and a third, more fluid, designed to flow into every corner and undercut. This variety allows clinicians to choose the best option for each procedure—opting for the high flowability variant for cavity linings and resin coatings in immediate dentin sealing (IDS), or the super-low flowability version for direct veneers and cusp build-ups.

In addition to its handling advantages, this universal flowable composite incorporates Kuraray Noritake Dental Inc.’s Light Diffusion Technology. It boasts exceptional aesthetic properties, enabling the creation of lifelike restorations that seamlessly blend with the surrounding tooth structure.

100 PERCENT RECOMMENDATION RATE

CLEARFIL MAJESTY™ ES Flow (Low), the medium flowability variant, was tested by 29 Dental Advisor consultants in 909 clinical uses. Evaluations focused on key properties such as placement/handling, aesthetics, viscosity, and polishability, with all features receiving an "excellent" rating. As a result, the product earned a 100 percent recommendation rate and a 98 percent overall clinical rating.

GREAT FEEDBACK

Evaluators shared the following comments:

• The material blended so well with the tooth structure that you had to really look to find the interface.”
• “Syringe design prevents oozing from the tip.”
• “One of the best flowable composites I have used.”
• “My go-to flowable composite. Looks beautiful in any clinical case, any class, anywhere.”

ABOUT DENTAL ADVISOR

The Top Product and Preferred Product Awards from Dental Advisor, a US-based organization, were initiated to help busy practitioners navigate the variety of new dental solutions available, particularly for less invasive techniques and standardized procedures. These awards aim to identify products that improve outcomes consistently. Dental Advisor conducts clinical evaluations and product performance tests shortly after a product’s launch and publishes annual results online to help practitioners identify high-quality dental materials suited to their specific needs.

For more information, visit Dental Advisor at: www.dentaladvisor.com

In modern dental practice, there is a strong need for materials that combine convenient handling and procedural efficiency with aesthetic, durable results. These materials enable dental practitioners to achieve desired outcomes more efficiently, enabling them to spend more time on personal interaction with their patients.

In the context of direct restorative treatments, the selected resin composite has a strong impact on the simplicity of procedures and the quality of the outcomes: This is why universal paste-type composites, such as CLEARFIL™ MAJESTY ES-2 Universal (Kuraray Noritake Dental Inc.) are becoming increasingly popular. With CLEARFIL™ MAJESTY ES Flow Universal, the same company has now introduced a flowable composite that offers similar benefits, summarized below by answering your key questions.

How can you achieve aesthetic, durable restorations with flowable ease?

CLEARFIL™ MAJESTY ES Flow Universal is a flowable solution with two complementary shades designed for intuitive shade matching that supports a range of restorative procedures. It combines practical flow characteristics with advanced shade-blending ability and outstanding mechanical properties.

Low

• Flexural strength 151 MPa.
• Compressive strength 373 MPa.
• Filler load 75 wt/% / 59 vol%.
• Radiopacity 140 % Al.

Super Low

• Flexural strength 152 MPa.
• Compressive strength 374 MPa.
• Filler load 78 wt/% / 60 vol%.
• Radiopacity 150 % Al.

What is CLEARFIL™ MAJESTY ES Flow Universal?

CLEARFIL™ MAJESTY ES Flow Universal is a light-cured, radiopaque composite resin designed for a variety of clinical situations, available in two viscosities and 2 shades. It features nano-filler technology that allows for controlled flow, polish retention, and natural-looking restorations. Seamless blending of the composite is achieved by having a smart combination of an enamel-like translucency, dentin-like chroma and Light-Diffusion Technology (LDT). The enamel-like translucency allows light to transmit through the material, enhancing the color integration with surrounding tooth structure. LDT makes restorations diffuse light in a similar way as enamel and dentin. Together with the fine-tuned chroma, these characteristics contribute to a smooth optical integration of the material into the surrounding tooth structure.

Where can you use CLEARFIL™ MAJESTY ES Flow Universal?

This flowable composite is intended for a wide scope of restorative needs. From Class I-V restorations to pit and fissure sealing and repairs, it is formulated for use in both conservative and comprehensive treatment plans.

CLEARFIL™ MAJESTY ES Flow Universal may be used for:

• Direct restorations for all cavity classes, cervical lesions (e.g. root surface caries, v-shape defects), tooth wear, and tooth erosion.
• Cavity base / liner.
• Correction of tooth position and tooth shape (e.g. diastema closure, tooth malformation).
• Intraoral repair of fractured restorations.

How is shade selection accomplished?

Shade selection is virtually effortless with CLEARFIL MAJESTY™ ES Flow Universal. The two complementary shades, universal (U) and universal dark (UD), are intuitively selected – no shade guide needed. Shade U is suitable for most posterior and anterior restorations. UD performs best in darker-shade teeth (B3 and above) with a low amount of surrounding tooth structure, including Class III and IV cavities. Depending on the cavity class and age of the patient, you may pick the shade that fits best.

Color matching with anterior and posterior restorations.

What contributes to the performance of CLEARFIL™ MAJESTY ES Flow Universal?

The formulation includes several features aimed at clinical effectiveness:

• Nano-filler technology: Maintains an optimal filler load for reduced shrinkage, enhanced wear resistance, and long-term polish retention.
• Universal shade adaptation: Offers good visual integration with surrounding tooth structure, supporting streamlined shade selection.
• Thixotropic handling: Flows under pressure during placement but remains stable once in position, enabling precise application.

Why consider CLEARFIL™ MAJESTY ES Flow Universal?

Clinicians may find CLEARFIL™ MAJESTY ES Flow Universal beneficial due to its:

• Predictable handling and delivery.
• Aesthetic outcomes for both anterior and posterior restorations.
• Resistance to wear and surface degradation.
• Radiopacity that supports radiographic evaluation.
• Adaptability across a variety of restorative needs.

How do you apply CLEARFIL™ MAJESTY ES Flow Universal?

The application is straightforward and fits into standard clinical workflows:

1. Prepare and isolate the area as required.
2. Apply a compatible adhesive (e.g., CLEARFIL™ Universal Bond Quick 2).
3. Dispense the material using the syringe and fine-tip applicator.
4. Light-cure according to the manufacturer’s guidelines (typically 20 seconds, depending on the shade and curing light used).
5. Finish and polish to complete the restoration.

Syringe-based delivery supports controlled application and convenience.

Direct restoration with CLEARFIL MAJESTY™ ES Flow Universal.

Has CLEARFIL™ MAJESTY ES Flow Universal been evaluated by independent sources?

Yes. CLEARFIL™ MAJESTY ES Flow Universal (Super Low) has been evaluated by dental professionals through third-party testing and peer-reviewed feedback. Most recently, it received Research Award 2025 from The Dental Advisor. In their conclusion, the evaluators from the U.S.-based publication stated:

“Testing shows this composite to have among the highest physical properties for flowable composites that rivals the strongest packable composites in flexural strength, and compressive strength with an ideal radiopacity.”

A versatile flowable option: CLEARFIL™ MAJESTY ES Flow Universal

CLEARFIL™ MAJESTY ES Flow Universal is intended to support restorative procedures by combining controlled handling, aesthetic integration, and mechanical durability. It can be a practical choice for clinicians seeking a dependable flowable resin for a wide range of clinical scenarios.

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Universal Excellence - Smart Streamlined Solutions

At Kuraray Noritake Dental Inc., we understand the demands of modern dental practices. Balancing complex procedures, tight schedules, and patient needs is no easy task. That is why we have been on a relentless journey to streamline, enhance, and refine every step of your work for decades. Our vision is clear: a world where your materials and tools work seamlessly in your hands, where complexity is minimized, and where you are given enough time to focus on what matters most: the individual desires and needs of every single patient. This is the future of dentistry, and together, we’re making it happen.

Read more >

Recently we introduced CERABIEN™ MiLai - a brand-new line of porcelains and internal stains specially developed for micro-layering on zirconia and lithium disilicate.

In this special edition of BOND magazine, we're excited to share the very first clinical cases using this innovative system. From beautifully natural veneers to streamlined lab workflows, these real-world examples show just what’s possible with CERABIEN™ MiLai.

If you’re curious about what the future of aesthetic dentistry looks like, this is the place to start!

Start Reading: BOND | VOLUME 12 | 07/2025

Previous versions:

BOND | VOLUME 11 | 07/2024

BOND | VOLUME 10 | 10/2023

BOND | VOLUME 9 | 08/2022

BOND | VOLUME 8 | 12/2021

BOND | VOLUME 7 | 10/2020

CLEARFIL™ SE Protect WINS TOP PRODUCT AWARD AGAIN IN 2025

For the 11^th consecutive time, the self-etch adhesive CLEARFIL™ SE Protect has been named a Top Product by Dental Advisor. This recognition was announced in the January/February 2025 issue of the publication, which highlights dental materials and equipment that deliver top-notch, practice-based performance. CLEARFIL™ SE Protect was honored in the Direct Restoratives – Bonding Agent: Self-Etch category for its exceptional attributes, which go beyond providing a reliable bond.

PROPERTIES IN A NUTSHELL

CLEARFIL™ SE Protect is a trusted tool built on the same system as the gold-standard adhesive CLEARFIL™ SE BOND, offering excellent bond strength to both enamel and dentin. Additionally, it features an antibacterial cavity-cleansing effect, thanks to the proprietary MDPB monomer it contains. This eliminates the need for a separate cavity cleanser.

 
In short, CLEARFIL™ SE Protect provides the following benefits:

• Fast and simple procedure with minimal technique sensitivity.
• Excellent bond strength for enamel and dentin.
• Long-lasting bond strength.
• Antibacterial cavity-cleansing effect.
• Virtually no post-operative sensitivity.

This highly versatile adhesive system can be used for:

• Direct restorations using light-cured composite resin or compomer.
• Cavity sealing as a pretreatment for indirect restorations.
• Treatment of hypersensitive and/or exposed root surfaces.
• Intraoral repairs of fractured crowns/bridges made of porcelain, hybrid ceramics or composite resin using light-cured composite resin.
• Surface treatment of prosthetic appliances made of porcelain, hybrid ceramics and cured composite resin.
• Core build-ups using light- or dual-cured composite resin.

SPECIAL CHARACTERISTIC: ANTIBACTERIAL EFFECT

CLEARFIL™ SE Protect contains Kuraray Noritake Dental Inc.'s renowned original MDP monomer combined with the 12-Methacryloyloxydodecylpyridinium bromide (MDPB) monomer. The latter monomer is responsible for the product’s antibacterial cavity-cleansing ability: It contains a positively charged pyridinium group, which attracts bacteria cells in the oral cavity that are generally negatively charged. When docking to the positively charged contact points of the MDPB monomer, the cell membranes of these bacteria lose their electrical balance and are destroyed. This process known as bacteriolysis is powerful and effective, leading to clean cavities as ideal foundations for long-lasting restorations. During polymerisation of the adhesive layer, the MDPB monomer is immobilized. Afterwards, it remains latently active without affecting the dental patient’s own cells.

OUTSTANDING 98 PERCENT CLINICAL RATING

The product’s impressive features are reflected in a six-week evaluation by Dental Advisor’s editors and consultants, who placed over 150 restorations. Using a 1-5 rating scale, consultants gave it an amazing 98 percent clinical rating.

The practitioners noted no post-operative sensitivity. They highlighted that the primer and bond wet the tooth evenly, and found the antibacterial and fluoride-releasing properties to be “an added benefit.” Regarding treatment of hypersensitive teeth or exposed root surfaces, they observed that CLEARFIL™ SE Protect is effective in reducing sensitivity.

ABOUT DENTAL ADVISOR

The Top Product and Preferred Product Awards from Dental Advisor, a US-based organization, were initiated to help busy practitioners navigate the variety of new dental solutions available, particularly for less invasive techniques and standardized procedures. These awards aim to identify products that improve outcomes consistently. Dental Advisor conducts clinical evaluations and product performance tests shortly after a product’s launch and publishes annual results online to help practitioners identify high-quality dental materials suited to their specific needs.

For more information, visit Dental Advisor at: www.dentaladvisor.com