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“The multi-layered aspect of KATANA Zirconia is excellent”

In recent years, zirconia has emerged as the preferred choice for dentists who wish to perform restorative procedures with a reliable and metal-free material. With the recent development of multi-layered aesthetic high-translucency options, zirconia’s popularity has further increased. In comparison to the opaque whiteness of older generations of zirconia, these newer versions have an enhanced appearance and functionality that makes them suitable for natural-looking anterior restorations.

Kuraray Noritake Dental’s KATANA Zirconia disc range is made with a proprietary zirconia powder—processed in-house—that gives it its natural appearance. Suitable for zirconia prostheses, from single crown to full arch, it is an ideal option for restorations in both the anterior and posterior regions. We spoke with Dr Imad Ghandour, a prosthodontist with a strong scientific background and a private practice in Le Cannet in France, about his experiences with the KATANA Zirconia range in restorative procedures.

Dr Ghandour, when did you first start using zirconia as a material for your restorations?

In 1998, when I was still sintering manually, I began using zirconia alumina. It was nice to have an alternative to metal alloys that was much more aesthetic. From 2003, however, I started with VITA blocks, but only for frameworks—I would still build up with ceramics. Now, with so much of dentistry being digitally focused, there is a need for a material that can be milled without changing anything in the morphology of the teeth. Why? Because we need to be able to reproduce the treatment plan as accurately as possible. Simply put, the KATANA Zirconia range solves this need for me.

With respect to dentistry being digitally focused, how has this changed the role of the dentist regarding performing restorative procedures?

Well, it is clear that we have entered the age of digital dentistry. Around 80 per cent of restorations are conducted via CAD/CAM systems and without dentists even touching the materials themselves. There are great advances being made in the technologies that are available for everyday use in dental practices worldwide, and many of them can be used to assist dentists performing restorative procedures. It is important, though, to keep in mind that these technological advancements alone will not lead to better results—they should supplement the requisite hands-on skills and techniques that all dentists must first learn. With this base of fundamentals, we can then use digital dentistry to make restorative procedures more predictable and reproducible. Of course, to ensure the best results in restorative procedures, dentists also need to use the materials that have the best aesthetic and mechanical properties.

For how long have you been using Kuraray Noritake Dental’s KATANA Zirconia range, and what has your experience been?

I have been using KATANA Zirconia for a little bit more than one year. In that time, I have primarily used the KATANA Zirconia STML (Super Translucent Multi Layered) line and have been pleasantly surprised by how natural-looking the restorations I have made with the material are. For example, when I sinter a crown made of Katana Zirconia STML, I am amazed at how much the sintered material is reminiscent of a pearl—it truly brings to mind the idea of one’s teeth being one’s pearly whites.

When using KATANA, how do you ensure that you select the correct shade to achieve a natural look?

Firstly, no one—not a dentist nor a dental technician—can be absolutely certain that the shade and chroma of the restoration that is in one’s hand will be the same once it is in position in the oral cavity. This is due to the complexities of the oral environment—the pinkness of the gingivae, for one, can have a large impact on how the restoration appears, often making it seem far duller than it does in the light of a dental laboratory. This can cause dental practitioners to compensate and make prostheses that appear far brighter than they will when they are in place.

With a product like KATANA and its related glazing materials, however, I can create crowns and other restorations that have an optimal fluorescence and translucency and are able to maintain their shading better than any other ceramic material I have used. I am able to select a shade with the confidence that it will look exactly the same once placed inside the mouth, with its chroma remaining unabsorbed by the gingiva. Achieving a natural look, then, depends on choosing a shade that is as close to that of the surrounding dentition as possible. Since KATANA Zirconia UTML (Ultra Translucent Multi Layered) is available in 16 standard shades and a further four enamel shades, there is no shortage of options in this regard.

How does the multi-layered technology of KATANA Zirconia help you to achieve optimal and natural-looking aesthetic results?

Well, firstly, the layering of the material is designed to replicate the colour and translucency progression of natural teeth, which allows for restorations to blend in as much as possible. This multi-layered technology has also proved itself to be very handy when I am sintering crowns made of KATANA Zirconia. Simply put, if one sinters a crown quickly, it will be a little more opaque. If one sinters it at a higher temperature and quite slowly, it will be much more translucent. The multi-layered aspect of KATANA Zirconia is excellent in that it gives me the ability to make restorations more or less translucent depending on what is required.

PANAVIA and KATANA: The perfect combination

Scientific research has demonstrated that, when bonding zirconia, optimal bond values can only be achieved with resin cements—specifically, MDP monomer-based resin cements. With PANAVIA V5, we offer a dual-cure resin cement with dentine bond strengths equal to our gold standard light-cure bonding agent CLEARFIL SE BOND, even when used in self-cure mode. Through our KATANA Zirconia range, Kuraray Noritake Dental presents a ceramic material for restorative procedures that has excellent translucency and shade options. Together, PANAVIA V5 and KATANA Zirconia make an ideal team for durable and reliable indirect restorations.

PANAVIA V5

In 1983, Kuraray introduced its patented MDP monomer in PANAVIA EX cement. With its clinically proven adhesion, our PANAVIA family has set the industry standard for adhesion for over 30 years. As the newest addition to the PANAVIA cement line, PANAVIA V5 provides strong bonding not just to zirconia but to hydroxyapatite and metals as well. Unlike other dual-cure resin cements, PANAVIA V5 offers improved bond strength to all tooth structures. Simple to use and with predictable results, PANAVIA V5 is unique in its user friendliness and procedural consistency. 

KATANA Zirconia

Our KATANA Zirconia discs are processed using a proprietary zirconia powder, allowing it to have as natural a translucency and colour as possible. The KATANA range consists of several options designed for full-contour zirconia prostheses, from single crown to full arch: KATANA Zirconia UTML (Ultra Translucent Multi Layered), STML (Super Translucent Multi Layered), ML (Multi Layered) and HT (High Translucent). The multilayered build-up of KATANA Zirconia STML provides a translucency and chroma that gradually decrease from the cervical to incisal regions, just like natural dentition. KATANA Zirconia UTML is perfect for anterior restorations, such as veneers, owing to its natural translucency and colour gradient. With a flexural strength considerably higher than that of lithium disilicate, KATANA Zirconia has the mechanical and aesthetic properties to achieve well-balanced restorations between natural teeth in the anterior zone.

An ideal team

PANAVIA V5 provides a strong and durable bond between KATANA Zirconia-based restorations and the tooth structure. PANAVIA V5 resin cement offers optimal margins and predictable restorations. Always use PANAVIA V5 Tooth Primer for the pretreatment of the tooth and CLEARFIL CERAMIC PRIMER PLUS for the priming of the restoration.

“We’re thrilled by the possibilities presented from the combination of PANAVIA V5 and KATANA Zirconia,” said Mitsuru Takei, Head of Technical Services at Kuraray Europe. “Together, they make achieving natural-looking restorations easier than ever.”

TEETHMATE DESENSITIZER: A natural solution for sensitive teeth

Kuraray Noritake Dental’s TEETHMATE DESENSITIZER is designed to provide an immediate and long-lasting solution for dentine sensitivity. Owing to a specially modified powder free of potential irritants like methacrylates and colophony resins, TEETHMATE DESENSITIZER is biocompatible and harmless to tissue. The first desensitiser to form hydroxyapatite, TEETHMATE DESENSITIZER possesses a neutral taste that will please patients. Since its introduction in 2013, dentists have hailed the product for its safe tubule sealing and for providing patients with immediate relief.

TEETHMATE DESENSITIZER consists of a powder, composed mainly of calcium phosphate, and a liquid, whose chief component is water. The powder and liquid simply need to be mixed. After the paste has been applied with a superfine brush to the affected area for 30 seconds, the material sets into hydroxyapatite, providing an instant reduction of hypersensitivity by sealing the dentinal tubules and microcracks in the enamel.

Hydroxyapatite: The human body’s strongest mineral

The presence of hydroxyapatite encourages tooth remineralisation, protecting teeth against hypersensitivity and after professional tooth cleaning. TEETHMATE DESENSITIZER is composed of two different calcium phosphates that react under water to form hydroxyapatite. Since Kuraray Noritake Dental’s technology ensures the right calcium–phosphate ion ratio with a suitable pH level, the newly formed hydroxyapatite acts as if it were the patient’s own, crystallising so that it can neatly seal dentinal tubules and enamel cracks.

Suitable for most sensitivity issues

TEETHMATE DESENSITIZER has a wide range of indications, from whitening-related dentine sensitivity to the treatment of dentine exposed by periodontitis, abraded by harsh toothbrushing, or prepared for fillings and/or restorations.

TEETHMATE DESENSITIZER is an invisible and durable form of treatment. When applied, it occludes open dentinal tubules without leaving a film on the tooth. It is fast and easy to use—simply mix the powder and liquid, apply with a rubbing motion to the sensitive region for 30 seconds and rinse lightly with water. No air blowing or light curing is required, as the calcium phosphates in the substance harden on their own, providing patients with fast relief from sensitivity-related pain.

Proven effectiveness

In a survey conducted by Kuraray Noritake Dental, Japanese dentists were asked to rate the effectiveness of TEETHMATE DESENSITIZER. Of the 285 respondents, 92 per cent said that they were satisfied with the product’s effectiveness.

No impact on bond strength

TEETHMATE DESENSITIZER has been clinically proven not to reduce the bond strength of adhesives or cements when it is used prior to their application. This is a considerable advantage for dentists using etch and rinse adhesives, for instance, as they can apply TEETHMATE DESENSITIZER without any concerns about potentially deleterious effects on restorations. A smart, invisible and durable form of dentine sensitivity treatment, TEETHMATE DESENSITIZER promises to satisfy both dentists and patients.

With a career spanning over two decades and a profound interest in the use and possibilities of adhesives, dental surgeon Dr Fabrice Gambier is the perfect person to speak with when looking back at the evolution of adhesives and the techniques in applying them. Brenda van de Watering, Sales and Marketing Manager of Kuraray Europe France met Dr. Gambier in Paris at the 2017 Association Dentaire Française meeting to discuss these topics, as well as the advantages of Kuraray Noritake Dental’s latest CLEARFIL Universal Bond Quick adhesive.

1/ Brenda Van de Watering: Hello, Dr. Gambier. Perhaps you would like to introduce yourself and tell us a little about your career to date?

Dr. Gambier: Next year will mark 25 years since I joined a practice near Toulon, in Six-Fours-les-Plages, a fine surgery which has grown steadily. In January 2018, we will have 12 practitioners; when I arrived in ’93, there were just four of us. Gradually, with increased patient numbers and patient loyalty, plus our continuous attention to the quality of patient care, the practice has indeed expanded.

As far as Kuraray is concerned, I have been using your products for a long time. I have known Christophe Commaux for some years and he has always provided me with excellent information on your products. And then, there is your literature and the scientific studies.

2/ What has been your experience with “Universal” adhesives in general?

In my practice, I have always been a great devotee of adhesive techniques. Just quoting from memory, twenty years ago, I was even using bonding adhesives on amalgams when working on extensive reconstructions. I progressed to direct composite restorations, having abandoned silver amalgams at least fifteen years ago now, so I have certainly become familiar with various generations of adhesives. The first of your products which I used was the first PANAVIA. At that time, I was also using CLEARFIL SE BOND.

Over time, again from memory, I moved on to Scotchbond, a 3-step total-etching system from 3M, to Excite F and Scotchbond 1, 2-step total-etching systems, then a 2-step self-etching system AdheSE from Ivoclar Vivadent, and finally, a 1-step self-etching system from Kuraray, CLEARFIL S3 Bond, which I found effective for fast enamel etching.

For adhesive bonding in my indirect restorative work, I prefer to use your PANAVIA V5.

Recently, having finished my last bottle of CLEARFIL S3 Bond Plus, I finally moved on to CLEARFIL Universal Bond Quick, which is a very good product. The universal adhesives are attractive and efficient and that is why I use them with a carefully applied, specific technique.

3/ In your experience, what are the most frequent mistakes found in the use of adhesives?

It’s just where directions for usage are not properly followed. I think this is really important and, from time to time, even if I am very familiar with a product, I will re-read the directions for use. It is easy to make a change to one of the stages, believing it to be for the best, only to reduce the effectiveness of the product. Although, I must admit that it is difficult to skip any of the stages now, as the method has been simplified.

As far as I am concerned, the simplified technique is an advantage and certainly, there is always the question of whether or not to use etching, depending on the surface. With CLEARFIL S3 Bond Plus, I used to etch for about two seconds on unprepared enamel. I have even adapted the application of the adhesive; instead of leaving it to act for 10 seconds, I massaged for 10 seconds and then I left it to act for 10 seconds. In my opinion, this optimised the bonding. With Universal, I have retained the etching application time, but for the adhesive, I massage for 5 seconds and then leave it to act for 5 seconds.

4/ Do you think that universal adhesives represent the way forward for modern restorative dentistry?

Yes, of course, since current modern dentistry favours adhesive dentistry and whether it is direct or indirect, it is far preferable and less disfiguring orally.

5/ CLEARFIL Universal Bond Quick is the latest version of adhesives from Kuraray Noritake. What do you see as the main advantages of this product?

There are many advantages. Firstly, with regard to ergonomics, the simplified technique and the fact that it can be universally applied means you need fewer products, fewer bottles in our basins or in the fridge; speed of application with scientifically proven effective adhesion; the simplified technique avoids any mistakes in handling. Then, compared to your product, the MDP together with a hybrid monomer, this enables better dental impregnation and some tolerance to humidity. Having said that, some care must be taken; attention must be paid to eliminate any saliva. There is also the extended durability period. Finally, it is compatible with the dual-cure products from Kuraray, without the need for a dual-cure activator. There are really many advantages.

6/ What kinds of restorative work do you use this adhesive for?

At the moment, mainly for direct restorations; I have not yet tried it for indirect work. I know that the CLEARFIL DC Core Plus is very good, but I have an indirect bonding technique with PANAVIA V5 and I am still working with carbon fibre posts, because for the last 10 or 15 years, I have had no problem with them. When I have direct access for photo-polymerisation, I use CLEARFIL PHOTO CORE, which enables polymerisation beyond 5 mm and, if not, I use LuxaCore.

When I need an adhesive bond for zirconia, I use the PANAVIA procedure. For some time, I used PANAVIA SA Cement Plus, even for inlays. Veneers are sintered and in such cases, my laboratory follows the Vivadent procedure.

I use CLEARFIL Universal Bond Quick for all classes of restoration and even for dentinal hybridisations. One of its advantages is also faster impregnation of the dentine and, therefore, the reduced application time.

7/ CLEARFIL Universal Bond Quick combines the MDP monomer patented by Kuraray with hydrophilic amide monomers, enabling it to penetrate the dentine faster whatever the level of humidity. How does this fast bonding technology benefit the dentist?

The benefits lie in its speed and the improved bonding result, plus the tolerance to humidity which we have just mentioned.

8/ What are the advantages to patients on whom you have used CLEARFIL Universal Bond Quick?

Patients are not really aware of the procedure. I could say the durability of restorations and a reduction in post-operative sensitivity, but this is something we have enjoyed for some time, thanks to the development of adhesives. I don’t think this is something that “Universal” adhesives can add to.

9/ Given the progress achieved in restoration materials and technologies, is post-operative sensitivity still something which dentists need to take into account? What has been your experience in this regard with CLEARFIL Universal Bond Quick?

Yes. I do pay special attention to this, aside from the quality of treatment, durability and the comfort of our patients. The satisfaction of our practitioners is dependent on our patients’ satisfaction!

10/ Do you think that there is more post-operative sensitivity when etching is carried out separately?

Personally, I have never felt this, but I do follow the instructions for use scrupulously. It is really a question of technique, whether rinsing the etching, applying the adhesive, intensive drying or not.

11/ You have still not tried CLEARFIL DC Core Plus. Do you think you will start using it?

That’s true, I have not used it yet, but I am very interested in the product and I shall review this.

Shining a light on our lesser-known stars

Founded in 1926, Kuraray has a long and storied history of providing high-quality solutions in a number of fields. Since 1978, we have produced dental materials, such as the CLEARFIL and PANAVIA families of products, that have given our company a deserved reputation as an industry leader in excellence and innovation. However, there are many more products manufactured by Kuraray Noritake Dental that play a pivotal role in the daily work of dental practices worldwide, albeit without the same level of name recognition. With that in mind, we would like to highlight just a few of them.

CARIES DETECTOR

Kuraray Noritake Dental’s CARIES DETECTOR is the ideal tool for practitioners of conservative dentistry. A caries-disclosing agent, it assists in identifying carious lesions and plays a pivotal role in the maintenance and preservation of teeth. Fast and easy to use, CARIES DETECTOR provides support in the excavation of the demineralised and caries-affected outer tooth layers by staining the damaged parts red. This ensures that as little as possible healthy dentine is removed, aiding in the preservation of the tooth structure and maintaining pulp vitality. Dentists can excavate with precision and confidence thanks to our CARIES DETECTOR.

K-ETCHANT Syringe

The K-ETCHANT Syringe comes with an etching gel that is indicated for etching tooth enamel and dentine, as well as cleaning the surface of ceramics, hybrid ceramics, composite resins and metal restorations. Being thixotropic, it can be applied in a controlled manner and stays where you want it. Thanks to this nifty property, the K-ETCHANT Syringe treats only those areas that need to be etched.

CLEARFIL™ CERAMIC PRIMER PLUS

A stable, universal primer for all cement and repair indications, CLEARFIL™ CERAMIC PRIMER PLUS incorporates both Kuraray Noritake Dental’s original MDP monomer and a silane monomer. This allows for excellent bond strength to all silica-based ceramics, zirconia, composites and even metals, all at a high level of procedural simplicity. CLEARFIL™ CERAMIC PRIMER PLUS pairs perfectly with the adhesive resin cement PANAVIA™ V5 for reliable restorations.

Of course, this is only a glimpse into the variety of solutions that Kuraray Noritake Dental delivers. To find out more about our wide range of dental products, visit https://www.kuraraynoritake.eu/en/.

Get to know the CLEARFIL MAJESTY family

Kuraray Noritake Dental is proud to present the CLEARFIL MAJESTY family, a series of universal composites designed for reliable, natural-looking restorations. With its brightness-based shade system for direct composites, CLEARFIL MAJESTY is another symbol of our company’s dedication to research and development, promising ease of use and reproducibility for the dentist.

CLEARFIL MAJESTY ES-2 Classic and Premium

A universal nano-hybrid composite resin with a high refractive matrix, CLEARFIL MAJESTY ES-2 Classic was introduced to the world at the 2013 International Dental Show in Germany. It combines easy sculpting with a predictable and aesthetic finish for a composite that will benefit both the dentist and the patient. With 15 precisely matched VITA shades and some special shades for whitening, it is suitable for a range of anterior and posterior restorations, including all cavity classes, composite facings, intra-oral repairs of fractured crowns and bridges, and corrections of tooth positioning and shape. CLEARFIL MAJESTY ES-2 Classic uses Kuraray Noritake Dental’s Light Diffusion (LD) technology to accurately replicate the diffusive properties of dentine. This feature means that restorations blend in with the existing tooth structure, rendering them virtually undetectable.

Through its fixed shade combinations of dentine and enamel, CLEARFIL MAJESTY ES-2 Premium is able to cover three VITA shades at once, making natural-looking restorations easily achievable. This dual-layer aspect means that there is an optimal built-in pairing of enamel translucency and dentine opacity, eliminating the need for any complicated shading schemes. By also incorporating LD technology, CLEARFIL MAJESTY ES-2 Premium is able to adjust the colour saturation and tint to that of the neighbouring tooth issue automatically. The small particle size of its proprietary nano-filled composite ensures easy polishing with a durable gloss, promising an aesthetic and seamless restoration.

CLEARFIL MAJESTY ES Flow

A light-curing universal, flowable composite, CLEARFIL MAJESTY ES Flow combines easy handling, high polishability and impressive mechanical strength to provide a material for all cavity classes. Thanks to Kuraray Noritake Dental’s silane technology, its submicron filler particles adhere reliably to the resin and maintain long-term stability. These small yet durable particles allow restorations made with CLEARFIL MAJESTY ES Flow to keep their high level of enamel gloss over time, with special cluster fillers providing a light diffusion property similar to that of natural teeth. The gloss itself is remarkably simple to achieve: just wipe the cured resin with an ethanol-moistened gauze or cotton roll to produce a smooth surface.

CLEARFIL MAJESTY ES Flow’s excellent handling characteristics allow for better sculpting. The material does not stick to the needle tip or to any instruments, only adhering to the area to which it is applied, and the proprietary design of the syringe itself minimises air bubbles when dispensing. A truly universal composite, CLEARFIL MAJESTY ES Flow allows dentists to create highly aesthetic restorations with ease.

In 1978, Kuraray shook up the dental market with the introduction of CLEARFIL BOND SYSTEM F, the world’s first total-etch adhesive system. Having inaugurated the era of adhesive dentistry, we steadily introduced new dental products over the following years. In 1983, Kuraray introduced the PANAVIA EX resin cement. By utilising our patented MDP monomer technology developed in-house, PANAVIA EX enabled Kuraray to set the industry standard for adhesion—a position we have held in the decades since. This year marks the 40th anniversary of Kuraray’s entry into the commercial dental products market, providing a perfect opportunity to reflect on how far we have come since.

Kuraray—Rooted from a true trailblazer 
Founded in June 1926 by Magosaburo Ohara in Kurashiki in Japan, Kuraray has transcended our humble origins as a producer of rayon to become a leading global manufacturer of medical products, materials, textiles, chemicals, resins and much more. Our commitment to research and development in the fields of chemistry and engineering has led to many market firsts and a reputation as a pioneer of new products and technologies. 

A history of innovation
From the very beginning, Kuraray has been focused on the manufacture of high value-added products. At the time of the business’s birth, rayon was a new type of synthetic material, and over the ensuing years, Kuraray was able to master its production. In 1950, we became the first company in the world to develop the technology to mass-produce POVAL (polyvinyl alcohol), paving the way for the production of the new synthetic fibre Vinylon in the same year. CLARINO, a water-resistant synthetic leather substitute for shoes, bags and other items, was released in 1964 after extensive research and testing, and quickly collected international awards for its technology.

Kuraray’s continued emphasis on independently developed proprietary technologies and techniques, rather than relying on imported alternatives, has enabled our company to provide original, high-quality products for a variety of different industries. High on this list is dentistry.

The Kuraray Noritake Dental era
In April 2012, Kuraray Medical and Noritake Dental Supply merged to form Kuraray Noritake Dental. By bringing together the materials and technologies developed by each of these market-leading companies, Kuraray Noritake Dental has continued to deliver dental bonding agents, ceramics and other reliable products to over 90 countries worldwide. The KATANA Zirconia range, for example, employs our unique multi-layered zirconia technology to provide a ceramic restorative material with superior translucency and perfect blending properties, while rapid bond technology ensures that CLEARFIL Universal Bond Quick delivers a lasting bond faster and easier than ever. 

Through a focus on research and production, Kuraray Noritake Dental is ideally positioned to continue providing leading-edge solutions to dental issues both now and in the future. 
 

Kuraray Noritake Dental concludes a patent license agreement with 3M In March 2018, Kuraray Noritake Dental Inc. (President: Kiyoyuki Arikawa), with its Head Office in Chiyoda-ku, Tokyo, concluded a license agreement with the 3M Company, whose Head Office is in Saint Paul, Minnesota, USA. The agreement concerns a patented method for producing multilayered ceramics, European patent No. 2024300, held by Kuraray Noritake Dental Inc.

Summary of Kuraray Noritake Dental Inc. ceramic business

Kuraray Noritake Dental Inc. launched the zirconia disc that has been commercialized through the use of our layered ceramic production method in 2012. The product has multi-layered structure with four different colored zirconia powders that feature a smooth transition of color gradation between layers. We took advantage of the dental ceramic coloring technology we had accumulated through the development of porcelains. Success was achieved in controlling the shrinkage of the layers by optimizing the amounts of pigments added, thereby achieving great accuracy in terms of adaptation. In 2015, we also launched a new series zirconia which has the high degree of translucency of natural tooth enamel and is suitable for the esthetic restorations of anterior teeth. In January 2018, zirconia block joined the zirconia family as our new solution for the fabrication of zirconia restorations. This new product achieves a well-balanced combination of appropriate mechanical properties and good esthetics with a short baking time. Kuraray Noritake Dental Inc. is committed to developing new dental materials that contribute to the dental industry. Our products have become even more competitive on the global market because of our intense pursuit of technological innovation.

Read the official statement here

At Kuraray Noritake Dental, we understand that the most important factors for successful prostheses are strength and aesthetic appearance. With our KATANA Zirconia multi-layered series, we are proud to provide a range of materials with the translucency, colour gradient and durability to make every prosthesis as natural as possible, from veneers to full-contour restorations.

Launched in 2015, KATANA Zirconia UTML (Ultra Translucent Multi Layered) is the most translucent series at 43 per cent, a level equal to that of lithium disilicate or glass. This optimal translucency, combined with its natural colour gradient, allows the material to be used with confidence for veneers and crowns between natural teeth in the anterior region. KATANA Zirconia UTML is available in 20 shades in two shade groups (standard and enamel), with the reduced chroma of the enamel shades allowing for an enhancement of the translucency of the incisal area. As the flexural strength of KATANA Zirconia UTML—557 MPa—is 30 per cent higher than that of lithium disilicate, it can be reliably used to produce durable and aesthetic single restorations. 

KATANA Zirconia STML (Super Translucent Multi Layered) likewise has a natural colour and translucency gradient that transmits light in the incisal area while blocking it in the cervical area. This provides clinicians with the basis for beautiful full-contour prostheses, regardless of the abutment colour. With a translucency of 38 per cent and a flexural strength of 748 MPa—even higher than that of UTML, this series is recommended for up to three-unit posterior bridges, as well as crowns in the anterior and posterior regions.

The KATANA Zirconia ML (Multi Layered) and HT (High Translucent) series possess a flexural strength of 1,125 MPa, providing the highest level of mechanical strength in the KATANA line. Ideal for frameworks and long-span bridges, this series has a translucency of 31 per cent and ensures the aesthetic appearance of zirconia required by Kuraray Noritake Dental.

Give your brush a break

Often, the only way to ensure a prosthesis’s natural appearance is by dipping. With the KATANA Zirconia series, prostheses simply need to be milled and sintered to create natural aesthetics. To give them an even more natural look, the buccal surface can be stained with FC Paste Stain (Cerabien ZR).

Cementation with PANAVIA

Built upon the foundation of our original MDP monomer, PANAVIA cements are the best option for cementing prostheses or bonding to zirconia in a dental practice or laboratory. Both PANAVIA V5, developed for all indications, and PANAVIA SA Cement Plus, designed for ease of use, utilise the MDP monomer and have high bond strength to zirconia and durability. With PANAVIA cements, restorations can be cemented adhesively, expanding the options for use with zirconia.

No other resin cement offers such ease of use and consistency in procedure. Indeed, the unrivalled simplicity and predictability of PANAVIA V5 is nothing less than astonishing.

Always the same cementation procedure. Always the special PANAVIA V5 Tooth Primer for the pretreatment of the tooth. And always CLEARFIL CERAMIC PRIMER PLUS to prime the restoration. 

In 1983, Kuraray introduced the PANAVIA EX resin cement and, with it, our patented MDP adhesive monomer. Since then, the MDP monomer has repeatedly been clinically proved and has set the industry’s adhesive standard for over 30 years. PANAVIA V5 is the newest addition to the PANAVIA cement line and sets a new adhesive benchmark for resin cements by providing self-cure dentine bond strengths equal to our gold standard light-cure bonding agent CLEARFIL SE BOND.

PANAVIA V5 is able to provide strong bonding not just to hydroxyapatite but to metals and zirconia as well. It can be used for all clinical cementation indications, including on crowns, veneers, inlays/onlays, bridges, crowns/abutments on implants, and posts. With PANAVIA V5, you always follow the same procedures prior to prosthetic cementation: roughen and prime the prosthesis, prime the tooth, and apply the cement to the prosthesis.

Aesthetic stability in shading 

When it comes to maintaining shade in aesthetic cementation, conventional composite cements tend to discolour over time. With PANAVIA V5, Kuraray Noritake Dental presents an amine-free paste in five different shades—Universal (A2), Clear, Brown (A4), White and Opaque (only in self-cure mode)—that has been scientifically proved to demonstrate a lower level of post-curing colour variance than amine-based cements do. In addition, the new PANAVIA V5 try-in paste allows you to accurately simulate the shading of your cementation before it has been performed. As part of Kuraray Noritake Dental’s continued commitment to excellence in adhesion, this combination aims to enable the continued stability and natural appearance of the cement shading after curing.

PANAVIA V5 Tooth Primer

Almost all dual-cure resin cements available have been scientifically demonstrated to require light curing to achieve an acceptable bond strength. Thanks to Kuraray Noritake Dental’s focus on research and development, the MDP monomer-based PANAVIA V5 Tooth Primer contains a new catalyst that solves this issue. It provides an accelerated curing process from the moment the cement touches the primer, which, in turn, leads to a high degree of conversion from monomer to polymer. PANAVIA V5 presents a milestone in adhesion, as it offers improved bond strength for all tooth structures, even when used in the self-cure mode.

Prime with CLEARFIL CERAMIC PRIMER PLUS

PANAVIA V5 is designed for use in conjunction with CLEARFIL CERAMIC PRIMER PLUS, a stable universal primer that contains both Kuraray Noritake Dental’s original MDP monomer and a silane monomer. This allows it to bond to all silica-based ceramics (including lithium disilicate), zirconia, composites and metals. It provides excellent bond strengths to all of these materials, as well as procedural simplicity.

To find out more about integrating PANAVIA V5 into your restorative workflow, visit www.kuraraynoritake.eu/en/panavia-v5.html