429 Too Many Requests

Much of the success of Kuraray Noritake Dental’s adhesive has come off the back of our originally developed MDP monomer (10-Methacryloyloxydecyl dihydrogen phosphate). After applying for a patent for it in 1981, we started using this monomer’s excellent chemical adhesion properties, hydroxyapatite and metals in PANAVIA EX, our first adhesive resin cement, as well as in our CLEARFIL SE BOND adhesive. Through a process of extensive research and development, we have been able to combine our MDP monomer with hydrophilic amide monomers to create rapid bond technology. Our new universal adhesive system CLEARFIL Universal Bond Quick relies on this technology to deliver a lasting bond faster, and easier, than ever. By building on our past successes to deliver better solutions, this new technology embodies what Kuraray Noritake Dental does best—innovate and develop new and improved products.

Dentin bonding

Bonding to a substrate such as dentin can be difficult, as the adhesive needs to be able to penetrate the dentin. For many other adhesives, their reliance on slow monomers means that there is slow penetration of the dentin layer. Rapid bond technology’s use of amide monomers gives CLEARFIL Universal Bond Quick superior hydrophilic properties in comparison to traditional monomers, such as HEMA, which allows it to penetrate the dentin faster and more effectively. By doing so, the time spent waiting between applying the adhesive and proceeding with air-drying is eliminated and a tight and impermeable seal of the cavity is created after light curing. Thanks to rapid bond technology, bonding with CLEARFIL Universal Bond Quick can be performed easily and efficiently with the added assurance of predictable clinical outcomes.

Low water sorption

When it comes to dentin bonding, the level of water sorption in the bond’s organic matrix is a key indicator of long-term success. A high rate of sorption has demonstrated to be a prominent factor in the progressive physical deterioration of bonds, which can lead to secondary caries. Potentially, due to both the high cross-linking properties of the amide monomers used in our rapid bond technology and the use of almost insoluble Ca-MDP salt, CLEARFIL Universal Bond Quick has a low rate of water sorption. As a result, bonds that are created using this adhesive are more stable and resistant to hydrolytic degradation.

Aesthetic bonding

Rapid bond technology does not only provide a basis for bonding excellence. With a thin film layer of 5–10 μm, CLEARFIL Universal Bond Quick’s aesthetic appeal is evident. Through the aforementioned dense crosslinks of its polymer network, rapid bond technology is able to reinforce the stability of this layer and provide resistance to discolouration.

As the engine powering CLEARFIL Universal Bond Quick, rapid bond technology represents the next step for Kuraray Noritake Dental. Finally, faster and more reliable bonding procedures with consistent and durable results are now possible.

In 1978, Kuraray Noritake Dental introduced CLEARFIL BOND SYSTEM F, the first total-etch adhesive system. Through our renowned products such as the CLEARFIL SE BOND self-etching primer and bonding system and the PANAVIA family of adhesive resin cements, the company has continued to develop new solutions based on additional research and development. Continuing its tradition of setting trends in the dental world, Kuraray Noritake Dental is proud to present CLEARFIL Universal Bond Quick, our newest universal dental bonding agent. Delivering a reliable and lasting result instantly upon application, CLEARFIL Universal Bond Quick eliminates waiting time, the need for rubbing and the application of additional layers. Dentists can simply apply and proceed.

CLEARFIL Universal Bond Quick represents an evolution in dental bonding agents. Regardless of the technique used, CLEARFIL Universal Bond Quick guarantees optimal results in minimal time.

The new standard for bonding agents

CLEARFIL Universal Bond Quick offers a one-step adhesive that can be used for total-etching, selective-etching and self-etching. Unlike other universal bonding systems, it is effective on dentin in total-etch mode irrespective of the dentin’s moisture condition and it can adhere to almost all dental substrates, rendering additional primers obsolete. Our customers already praise its bonding ability as “game-changing” and “astounding”. With all of the advantages of a universal bond without any of the downsides, CLEARFIL Universal Bond Quick is the modern dentist’s preferred bonding agent.

Rapid bond technology

CLEARFIL Universal Bond Quick is developed to be less technique-sensitive than other one-step bonding agents on the market, thanks to Kuraray Noritake Dental’s monomer technology. Where other adhesives rely on slow monomers and their relatively slow dentin penetration, CLEARFIL Universal Bond Quick combines our patented MDP monomer with hydrophilic amide monomers, which is scientifically proven to provide stronger and more stable bonds. By doing so, this universal bonding system is able to penetrate the dentin faster and more effectively after curing, ensuring a tight and impervious seal of the cavity. Kuraray Noritake Dental’s rapid bond technology delivers stability and moisture resistance, making restorative procedures easier and more predictable than ever.

CLEARFIL Universal Bond Quick has a thin film layer of 5–10 μm, ensuring that it is resistant to discolouration along the edge of the restoration, thereby promising better aesthetic results. In addition, it offers excellent post-operative comfort for patients, as they do not suffer from sensitivity. With procedural outcomes like these, it becomes clear that CLEARFIL Universal Bond Quick delivers ideal results for both the dentist and the patient.

The Dental Tribune Editor's Choice awarded CLEARFIL Universal Bond Quick with the maximum 5 stars and an impressing 98% score.

Consultants’ Comments
• “Perfect viscosity. Ease of use and speed were great.”
• “I love the unit dose - so easy to use, and there was plenty of adhesive
for most procedures in each one.”
• “Great for replacement of silane to prime crowns for cementation with
resin cements - will self-cure with the dual-cured resin.”
• “Loved the fact that it is compatible with dual/self-cured resins and also
love that it can be used in self-cured mode with CLEARFIL DC Activator.
It’s applicable for all bonding procedures.”
• “Great product. A ‘go to’ bonding agent.”

Read the actual Report from The Dental Advisor
 

Adhesive cementation of high-translucent zirconium oxide restorations

The definitive integration of full ceramic restorations throws up a lot of questions in everyday practice life. Many of these are answered in the “ACTA Report”. The Congress lectures (ACTA Congress) held by Prof. Matthias Kern (Kiel/Germany) and Daniele Rondoni, ZTM (Savona/Italy) have been condensed down to the essentials and presented in a practical manner. The focus is placed on zirconia materials and it’s adhesive, MDP based cementation.  

Until now, the preferred cementation method for dental zirconia was conventional luting. Through the establishment of high-translucent zirconia materials (e.g. KATANA^TM UTML/STML, Kuraray Noritake Dental), however, the standards have changed. The outstanding aesthetic properties of the new zirconias are to be supported through a composite resin cement. In the ACTA Congress held at the ACTA University (Amsterdam/Netherlands,), Prof. Matthias Kern and Daniele Rondoni, ZTM evinced exciting information on the subject. Prof. Kern underlined the significance of the MDP monomer for the reliable adhesive cementation of zirconia restorations. He is convinced that the chemical adhesion can only take place using MDP based resin cements (PANAVIA^TM, Kuraray Noritake Dental). Rondoni presented the advantages and the material properties of the new zirconias.

In the “ACTA Report”, the scientifically founded explanations, which have proven their worth in practice, have been summarised. The reader learns for example which prerequisites are required for adhesive cementation. In addition, valuable preparation and material-relevant processing guidelines are provided. The explanations on the functional method of the adhesive cementation and the MDP monomer are presented in an interesting way. The original MDP monomer was developed in 1981 by Kuraray in order to improve the bond strength on tooth structure and dental metal alloy. Today, MDP monomer (the basis of PANAVIA^TM resin cements) are characterised by their strong adhesion to metal(oxides) incl. zirconia.

PANAVIA^TM V5 is an aesthetic and adhesive resin cement for all cementation indications, based on MDP technology. Prof. Kern published a work on bonding to zirconia ceramic with MDP for the first time in 1998. His well-founded experiences are practically summarised in the “ACTA Report”.

Today sandblasting and MDP is the proven formula to reliable adhesive cementation of zirconia.

The “ACTA Report” is a recommended read for all dentists and dental technicians who have integrated full ceramic restorations into their everyday working lives. Well-founded and practical!    

For more information

Email dental.eu@kuraray.com or phone +49-(0)69-305 85 980

You can read the full report  here.

From 21.03.-25.03.2017 IDS opens its doors again.

Kuraray Noritake Dental, a global supplier of innovative technologies in dentistry, presents new innovative products, as well as classics from dentistry and dental technology such as PANAVIA ™ or KATANA ™ Zirconia ML.

We are particularly pleased to present our new Universal Bonding, CLEARFIL ™ Universal Bond Quick. As a bonding specialist, Kuraray Noritake developed an innovative universal bonding process, without waiting time and with lasting results in all restorations.

CLEARFIL ™ Universal Bond Quick provides the best results without waiting, without intensive rubbing, without multiple layers or without multiple application.
The dentist not only saves time, but our bonding also reduces through the fast
Apply the risk of contamination.

Come and stay with us and be convinced by CLEARFIL ™ Universal Bond Quick!

Furthermore, there is brand-new information in the CEREC® area. Let yourself be surprised!

But also for the dental technicians there are many exciting and new information from Kuraray Noritake Dental, the inventor of the multi-layered Zirconia Disks.

A special highlight for the dental technicians among you are our Hands On demonstrations at our booth with internationally renowned dental technicians. You can find a program overview at www.kuraraynoritake.eu.
The highlight of the program will be our live talk at the stand in Hall 11.3 D010, on Friday, 24.03.2017 from 15-17 clock.

This afternoon, an exclusive expert team will be at your disposal with Dr. Ed Mc Laren (USA), Z. Oriol de la Mata y Garcia (ES), Zn. Nondas Vlachopulos (GR) and Daniele Rondoni (IT) Table discussion around the modern and aesthetic dentistry available for all questions!

But also for all other questions and suggestions about our portfolio, our product specialists at IDS are here for you!

Hall 11.3 / Stand D010 / D020 / D030

We look forward to you!
For further information please call +49 (0) 69 305 35835 or dental@kuraray.de

PRESS RELEASE

EXPERTS PRESENT IMPORTANT FINDINGS ON THE ADVANCED BONDING PROPERTIES OF THE NEW ONE-BOTTLE UNIVERSAL ADHESIVE: CLEARFIL™ UNIVERSAL BOND QUICK

Hattersheim, Germany – January 2017  

The 2nd December 2016 saw the annual Kuraray Noritake Expert Symposium in Frankfurt with more than 60 leading adhesives and composites experts from universities all over Europe meeting to discuss and share new advances in the world of adhesive technology, notably CLEARFIL™ Universal Bond Quick: the new one-bottle universal adhesive by Kuraray Noritake Dental which is to be launched in Europe in February. Prof. Dr. Bart Van Meerbeek from the KU Leuven - BIOMAT - University Hospitals Leuven/Belgium, acted as Symposium Moderator.

Starting off the day’s proceedings, Yusuke Fujimura, Technical Manager and Chief Developer at Kuraray Noritake Dental demonstrated how, unlike most other bonding agents, CLEARFIL™ Universal Bond Quick works instantly, removing the need for waiting time, extensive rubbing or multiple layer application. This was followed by Professor Dr Bart Van Meerbeek who discussed the problems associated with conventional total-etch methods whereby strong phosphoric acid is applied to the dentin, dissolving the natural tooth protector hydroxyapatite and exposing the collagen matrix. He posed the fundamental question:” Why demineralise the tooth with strong acids only to remineralise it again?”

Also on the agenda were four individual studies, each tested far over and above the legally-required ISO standards, providing insights into the fact that the longevity prognosis for bonded restoration is absolutely dependent on both the quality of the adhesives and the effect of the procedural steps. Luc Randolph, Materials Research Engineer at the University of Louvain-la-Neuve/Belgium, reported on shear bond strength tests using the new universal adhesive CLEARFIL™ Universal Bond Quick concluding that: “Among the all-in-one universal alternatives, the new CUBQ technology appears equally efficient despite the absence of waiting time after application, making it a more user-friendly and convenient option than its competitors.”

Prof. Dr. Amélie Mainjot from the University of Liège/Belgium went a step further demonstrating highly positive bond results for zirconia which showed, even after thermocycling, comparable bond strength to Vita Mark II class-ceramic instead of pre-test failures when not treated with CLEARFIL™  Universal Bond Quick.

Finally, Prof. Dr. Mutlu Özcan from the University of Zurich/Switzerland, concluded that, whereas the described method of air-abrasion increases the adhesion results for the majority of adhesives, air-abrasion may not be needed for CLEARFIL™ Universal Bond Quick.

Over the course of the day the speakers presented many enlightening research results which participants were able to take away with them. However, before they left, Prof Van Meerbeek called for a panel discussion so that speakers could collaborate with the audience on requests for future development and findings.

CLEARFIL™ Universal Bond Quick is launched in Europe on the 1st of February 2017. 

Read the full report: Kuraray Noritake Symposium Report (PDF: 360 Kb)

Kuraray celebrates its 90th anniversary in 2016. We take the opportunity of this occasion to offer you a glimpse of the history of Kuraray from a new perspective. The name Kuraray represents more than 8,300 employees and an annual turnover of approximately 3.7 billion euros. Kuraray was founded in Kurashiki, Japan, in June 1926, by Magosaburo Ohara. Kuraray began with the domestic production of Rayon, a synthetically produced cellulose fibre referred to as artificial silk, a new and innovative product at the time. 

The name KURARAY is derived from the location: Kurashiki and the product manufactured: Rayon. The development of this branch of production developed very quickly in Japan, with many other major manufacturers establishing themselves during this period. Whereas others recruited their technicians and experts from elsewhere, Kuraray established the Kyoko Research Laboratory, which was managed by the University of Kyoto to generate expertise and support for the development of the required technologies. Ohara also committed himself to cultural and social projects. The building of an art gallery and the financing of an orphanage represent only two of his many projects in Kurashiki. The Ohara Museum of Art was the first private museum of Western art in Japan.

Ohara considered the dreadful conditions in which employees commonly worked and lived at the time to be unacceptable; he was not a profit-driven employer, and attempted to solve such issues. He ensured that decent accommodation, fitness facilities and nursery schools were built to provide young employees, or families who had left their homes to work for Kuraray, with everything they needed for education and a healthy and culturally rich lifestyle.
One of the largest general hospitals in the west of Japan, the Kurashiki Central Hospital, was originally founded by Kuraray to promote the well-being of employees and their families. It is still considered to be one of the most famous hospitals in Japan.

With the production of Kuralon in 1950, developed from the in-house manufactured products PVA and vinyl acetate, Kuraray expanded to become the specialist chemical company it is today. Always intent on making a contribution to the good of society, Kuraray addressed the subject of environmental protection very early on. The visionary Ohara was aware of the seriousness of environmental pollution, and made great efforts to prevent it.

Internationally too, Kuraray has remained aware of its social responsibilities. After the war, a production facility was opened in China which helped to improve the poor post-war living conditions of the Chinese population.
Today, Kuraray is a leading global manufacturer of the specialist chemicals used in many aspects of daily life. Kuraray has always viewed its employees as its most important asset, and continues to do so to this day.

Phosphoric acid, sometimes also called orthophosphoric acid, is a substance that is used frequently in the practice of dentistry, mostly in concentrations between 30 and 40%. It is a proven substance for the etching of enamel (Buonocore 1955). It also entails hazards, because contact with the eyes and skin may cause severe irritation, blistering and burns.

The substance should only be applied where its use is intended, and proper control is of the essence. The use of a coloured gel is therefore recommended, preferably of a thixotropic type. The application of a cofferdam is also definitely recommended, and the patient should wear protective glasses ( the practitioners should obviously also wear protective glasses). When removing the etching gel, the main volume should first be sucked away using a saliva ejector without a cap. The area should then be rinsed clean with a spray mist suction device under continued suction.

If the etching gel should unintentionally get onto the skin or, even worse, into the eyes, the affected area should be rinsed with plenty of water until the patient no longer feels any pain in the affected area. In such a case, it is recommended that medical assistance be sought.

This article is based on a publication in the British Dental Journal Vol 217 No.2 Jul 25 2014
Link to the publication. 

I would like to refer to a recently conducted study by Garcia et al. to reply to this question, which derives from practice. The study examines the effect of three desensitisers on the bonding strength to dentine of a composite cement.

The study concluded that the effect is dependent on the material. Gluma Desensitizer (Heraeus Kulzer) and Super Seal (Phoenix Dental) decreased the bonding strength, whereas TeethmateTM Desensitizer (Kuraray Noritake) improved the bonding strength. The researchers obviously consider it necessary to conduct further research into the workings of TeethmateTM Desensitizer, a cement that contains calcium phosphate.

Clinical significance:

TeethmateTM Desensitizer, a material containing calcium phosphate, may serve as a useful new generation of desensitisers for use prior to the cementing of indirect restorations.

Click here for the research abstract.