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.

A clinical case created by Dr. Shoji Kato of Takanawa Dental Office, Japan

PRODUCTS USED IN THIS CLINICAL CASE

KATANA™ Zirconia Multi-Layered Series

Our KATANA™ Zirconia series brings naturalness to all
prosthetics. Make natural veneers and natural full contour
prosthetics out of zirconia. Plus large dentin-like frameworks.
KATANA™ Zirconia UTML is a high translucent disc, which meets
the requirements of highest translucency level for anterior crowns
and veneers. All layers are highly translucent, whereby the color
saturation is reduced in the incisal area. The transparency of the
natural enamel is copied and the abutment shade is absorbed.

KATANA™ Zirconia STML is a multi-layered zirconia disc
where light is transmitted in the incisal area and blocked in
the cervical area. Due to its color and translucency gradient,
more opacity in the cervical area and more translucency in the
incisal area are achieved.

KATANA™ Zirconia ML, the pioneer of zirconia with a
natural color gradient, is made for large dentinal frameworks.
Its natural opacity makes it the ideal base to cover it with
hand-made ceramics. 

PANAVIA™ V5
One Cement. All cement indications. One prime procedure.
Start with priming the tooth using PANAVIA™ V5 Tooth
Primer. Then prime and roughen the prosthetic using
CLEARFIL™ CERAMIC PRIMER PLUS and apply the pre-mixed
cement. PANAVIA™ V5 comes in five aesthetic shades and
the original MDP assures a durable bond. On the tooth and
the prosthetic.

CLEARFIL™ CERAMIC PRIMER PLUS
The universal prosthetic primer for almost all prosthetic surfaces.
It durably bond to ceramics (lithium disilicate, zirconia), hybrid
ceramics, composite resins and metals. The original MDP monomer
bonds to metals and metal-oxides such as zirconia. Silane coupling
agent γ MPS guarantees a strong adhesion to composites, glassceramics
and hybrid ceramics. This perfect mixture of ingredients
will give you long lasting adhesion to virtually all dental materials.

By Paul de Kok, Amsterdam (KVPA) Periodontic Clinic & ACTA

Picture 1

The Patient
Joris reported to the clinic with two discoloured composite two discoloured class IV composite restorations in tooth 11 and 21 11 and 21 (picture 1). These vital teeth were traumatized in his childhood. He was not satisfied with the aesthetics of the restorations neither with the overall shape and colour of the two teeth. It was therefore decided to make porcelain facings for tooth 11 and 21.

Picture 2

The preparation
In order to limit the sacrifice of healthy tooth tissue while still creating sufficient space for the porcelain, a preparation was chosen with an incisal reduction of 1.5mm and a buccal reduction of 0.5mm. A so-called depth cutter – a diamond drill with 0.5mm deep recesses – was used to achieve this (picture 2).

Picture 3

To be able to adjust the shape of the mid-line to the new facings, cutting was carried out centrally through the contact. From the distal aspect the contactpoint was remained. The thin shoulder was positioned equi-gingivally, so that a dry operative field could be achieved without damage to the gingiva.

The preparations were then finished using fine drills and polishing discs. The existing, well bonded diamonds composite restorations were left in situ (picture 3).

Picture 4

Since the transparent facings are very thin, the colour of the cut teeth is significant. The colour of the cores was therefore matched using the Natural Die colour guide (picture 4). Finally, impressions were made. Temporary restorations were placed by means of 4 spot etching points and bonding.

Picture 5

Cementation
To combine superior aesthetics with adequate strength, pressed lithium disilicate restorations were chosen for Joris. Prior to cementing the facings, they were tried for size and checked for marginal integrity, contact points, occlusion/articulation and aesthetics. Then the correct cement colour was established by testing the facings with various try-in colours PANAVIATM V5 Universal (A2); Universal (A2) appeared to be the most appropriate colour in Joris’s case. The teeth were then polished with pumice and the facings were cleaned with alcohol, after which the teeth from 14 up to and including 24 were isolate by a rubber dam.
An incisor clamp was placed on the first teeth to be cemented. The facing was tried for fitting once more to ensure that it was free of contact with the rubber dam or the clamp and that the operative field of the preparation was totally dry (picture 5).

Picture 6

The facing was etched with 9% fluoricacid (picture 6) for 20 seconds to achieve micro-mechanical retention.

Picture 7

It was then rinsed with water for 20 seconds before being neutralised in a solution containing ceramic neutralising powder. CLEARFILTM CERAMIC PRIMER PLUS was then applied to the facing. This ensures chemical bonding between the facing and the composite cement thanks to the incorporated silane and MDP. The adjacent teeth were separated by means of a transparent strip, after which the preparation was etched with 35% phosphoric acid (picture 7). TOOTH PRIMERTM was applied after thorough rinsing with water and drying after it had taken effect for 20 seconds.

Picture 8

A thin layer of PANAVIA V5 cement was then applied to the facing. The facing was placed on the preparation with the application of light finger pressure. A microbrush was used to remove the major excess along the margins. The cement of the buccal and palatal aspect was light cured for 5 seconds. A sharp scaler and floss were used to remove the final excess. Glycerine gel was then applied to the outline to avoid oxygen inhibition during curing. The cement was finally light cured from both sides for 20 seconds, the glycerine gel was rinsed away and the margins were finished by means of a composite polishing stone. After placement of the first facing, the rubber dam clamp was moved to the neighbouring tooth so the cementation of the second facing could proceed. This facing was once more tried for fit, pre-treated and cemented in an identical manner (picture 8).

Picture 9

The result
The facings were checked a few weeks later (picture 9). Joris was very satisfied with the aesthetics of his two central incisors. The transitions from tooth to restoration were invisible and the gingiva was healthy.

Picture 10

The transparency, surface structure and gloss are better adjusted to the neighbouring elements and to Joris’s smile (picture 10).

Dentist:

Paul de Kok, Amsterdam Periodontics Clinic

Paul de Kok studied dentistry at the ACTA and is an authorised restorative dentist at the Amsterdam Periodontic Clinic (KvPA), where he treats referred patients with restoration and aesthetic issues. In addition, Paul teaches indirect restorative dentistry at the Oral Functional Anatomy faculty of ACTA as well as conducting research in the Materials Science department. He also delivers lectures about this discipline at both a national and international level.

Dental technician: Eric van der Winden, Oral Design Center Holland

PAUL DE KOK USED CLEARFIL CERAMIC PRIMER PLUS AND PANAVIA V5 FOR HIS CASE STUDY

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.

Our latest "BOND" newsletter is now published and ready to read!

Content Highlights

CLEARFIL™ Universal Bond Quick
The development of one step self-etch

New Zirconia KATANA™
Digital Concept

Read BOND volume 2

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)