429 Too Many Requests

429 Too Many Requests


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Finishing Veneers with CERABIEN™ MiLai Lusters on KATANA™ Zirconia YML

In part two of this veneer workflow, Roberto Rossi completes the restoration by applying CERABIEN™ MiLai lusters to the pre-stained and sintered KATANA™ Zirconia YML. Watch as he enhances surface texture, gloss, and lifelike detail through precise finishing techniques.

 

With just a few simple steps, Roberto creates depth, dynamic light effects, and natural contours that rival real enamel. The process is intuitive and efficient, delivering a high-end finish—culminating in a final self-glazing fire for a polished, natural result.

 

An intelligent solution for dental technicians seeking efficiency without compromising on aesthetics.

 

 

Veneer Characterization with CERABIEN™ MiLai Internal Stains on KATANA™ Zirconia YML

In the first part of this aesthetic veneer workflow, dental technician Roberto Rossi demonstrates how to apply internal stains to KATANA™ Zirconia YML. This crucial step enhances the restoration by adding depth, translucency, and natural character from within.

 

After refining the anatomy and surface texture, Roberto skillfully blends and applies selected shades such as A+, Fluoro, and Incisal Blue. These shades create depth, opalescence, and inner vitality that radiate through the final restoration.

 

A must-watch for dental technicians looking to elevate their zirconia restorations with advanced, yet straightforward, internal staining techniques.

 

 

It was truly a lifetime experience

EUROPEAN KOLS EXPERIENCE INNOVATION AND CRAFTSMANSHIP IN JAPAN

This September, seventeen of Kuraray Noritake Dental’s Key Opinion Leaders (KOLs) from across Europe—representing nine countries—embarked on a remarkable journey to Japan. The program offered a rare opportunity to experience the heart of Kuraray Noritake Dental’s culture of innovation, craftsmanship, and collaboration.

 

A JOURNEY OF INSIGHT AND INSPIRATION

The tour began in Tokyo, where the group traveled by bullet train to Nagoya to explore some of Japan’s cultural and professional landmarks. Visits to Nagoya Castle and the historic Noritake Garden provided glimpses into the artistry and heritage that continue to inspire our company’s ceramic technologies today.

 

Nagoya castle.

 

That evening, an official dinner in Nagoya brought together the European guests and key members of the Kuraray Noritake Dental team, including Ms. Kiyoko Ban, Mr. Yoshihisa Yamada, and Mr. Kazuhiro Yamada. It was an evening filled with rich conversations, meaningful connections, and a shared vision for the future of dental excellence.

 

FROM CONCEPT TO CREATION: VISITING THE MIYOSHI AND NIIGATA FACTORIES

The following day, the KOLs visited the Miyoshi Factory, where the company’s ceramic products such as KATANA™ Zirconia are manufactured, and  attended insightful presentations by their European peers — including Jorgen Gad, Sophie Dallem, Dumitru Leahu, Marios Georgoulis, Stratos Chatzichristos, and Kamila Krzepkowska — followed by a comprehensive factory tour and in-depth discussions  with R&D experts on zirconia and dental lab materials, providing unique professional insights.

 

Discussion with Kuraray Noritake Dental team at Miyoshi Factory.

 

Presentation given by DT Sophie Dallem and DT Dumitru Leahu at Miyoshi Factory.

 

Presentation given by DT Marios Georgoulis at Miyoshi Factory.

 

The tour also brought our KOLs to Niigata, where participants experienced firsthand the research and development process behind Kuraray Noritake Dental’s renowned products. A highlight was the hands-on demonstration of CLEARFIL MAJESTY™ ES Flow Universal, allowing each participant to engage directly with the materials and processes that define the company’s quality.

 

Hands-on course at Niigata plant.

 

CONNECTING THROUGH COLLABORATION

Between technical sessions, the group visited the Tokyo office and showroom, sharing open discussions with our Japanese colleagues at the headquarters, followed by a sightseeing tour through Tokyo’s landmarks — from the Imperial Palace to Tokyo Tower. These shared experiences strengthened the sense of partnership and mutual respect not only between the European and Japanese teams but also between the KOLs themselves and the company.

 

“It was an incredible experience meeting exceptional people worldwide, among them top specialists.” 
—    DT Kamila Krezpkowska, Poland

 

Discussion with Kuraray Noritake Dental team at the Tokyo headquarters.

 

WORDS FROM OUR KOLS

The feedback from participants was overwhelmingly positive:

 

“It was truly a lifetime experience — both inspiring and invaluable for me as a dental technician. Witnessing how the materials we use every day are created gave me an even deeper appreciation for the craft behind them.”
DT Marios Georgoulis, Greece

 

“I’m so impressed by the organization, the endless friendliness, the openness, and the willingness to answer all my questions. It was a wonderful time, filled with so many experiences.” 
Dr. Bernhild Stamnitz, Germany

 

“It was a life experience I will never forget and I am very grateful I got this opportunity to be there.[…] The drive and compassion of all the workers in office, but also at the factory were very impressive to see. The view I had about the quality of your product improved more than it already was.” 
—  Dr. Mark Laske, Netherlands

 

A SHARED COMMITMENT TO EXCELLENCE

The KOL Japan Tour 2025 was more than a professional visit—it was a bridge between continents, uniting people through shared values of precision, innovation, and artistry. Kuraray Noritake Dental extends heartfelt thanks to all participants and to the teams in Japan who made this unforgettable experience possible.

 

Group picture at the Kuraray Noritake Dental office in Tokyo.

 

Arigato!

 

Atbildot uz jūsu vajadzībām

Mūsdienu zobārstniecības praksē ir nepieciešami materiāli, kas apvieno ērtu lietošanu un procedūras efektivitāti ar estētiskiem, ilgmūžīgiem rezultātiem. Šādi materiāli ļauj zobārstiem daudz efektīvāk sasniegt vēlamos rezultātus, sniedzot viņiem iespēju veltīt vairāk laika personiskai mijiedarbībai ar pacientiem.

 

Tiešās restaurācijas ārstēšanas kontekstā izvēlētajam sveķu kompozītam ir ievērojama ietekme uz procedūru vienkāršību un galarezultātu kvalitāti: šī iemesla dēļ universālie pastveida kompozīti, piemēram, CLEARFIL™ MAJESTY ES-2 Universal (Kuraray Noritake Dental Inc.), kļūst arvien populārāki. Ar CLEARFIL™ MAJESTY ES Flow Universal, šis pats uzņēmums tagad ir ieviesis savā produktu klāstā plūstošo kompozītu, kas piedāvā līdzvērtīgas priekšrocības, kas apkopotas tālāk, atbildot uz jūsu galvenajiem jautājumiem.

Kā sasniegt estētiskus un ilgmūžīgus restaurācijas rezultātus ar plūstoša materiāla nodrošināto vienkāršību?

CLEARFIL™ MAJESTY ES Flow Universal ir plūstošs risinājums divos savstarpēji papildinošos toņos intuitīvai toņa piemeklēšanai, kas piemērots plašam restaurācijas procedūru klāstam. Tas apvieno praktiskas plūstamības īpašības ar uzlabotu krāsu pielāgošanas spēju un izcilām mehāniskajām īpašībām.characteristics with advanced shade-blending ability and outstanding mechanical properties.

Low

  • Lieces izturība: 151 MPa.
  • Spiedes izturība: 373 MPa.
  • Pildvielas saturs: 75 wt/% / 59 vol%.
  • Rentgena necaurlaidība: 140% Al.

Super Low

  • Lieces izturība: 152 MPa.
  • Spiedes izturība: 374 MPa
  • Pildvielas saturs: 78 wt/% / 60 vol%.
  • Rentgena necaurlaidība: 150% Al.

 

Kas ir CLEARFIL™ MAJESTY ES Flow Universal?

CLEARFIL™ MAJESTY ES Flow Universal ir ar gaismu cietināmi, rentgena necaurlaidīgi kompozītsveķi, kas izstrādāti plašam klīnisko situāciju klāstam, pieejami divās viskozitātes versijās un 2 toņos. Šis materiāls ir papildināts ar nano pildvielu tehnoloģiju, kas nodrošina kontrolētu plūsmu, ilgstošu pulējuma spīdumu un dabiska izskata restaurācijas. Nevainojama kompozīta iekļaušanās apkārtējā zoba struktūrā tiek panākta, piešķirot tam emaljai pielīdzinātas caurspīdības, dentīna iedvesmotas krāsu gammas un unikālas Light-Diffusion Technology (LDT) gaismas izkliedes tehnoloģijas kombināciju. Emaljai pielīdzinātā caurspīdība ļauj gaismai plūst cauri materiālam, uzlabojot krāsas integrēšanos apkārtējā zoba struktūrā. LDT tehnoloģija ļauj restaurētajai zonai izkliedēt gaismu līdzīgā veidā, kā tas notiek, gaismai plūstot caur emalju un dentīnu. Apvienojumā ar rūpīgi piemeklētu krāsu gammu, šie raksturlielumi veicina vienmērīgu materiāla integrēšanos apkārtējā zoba struktūrā.

 

Kādos gadījumos iespējams izmantot CLEARFIL™ MAJESTY ES Flow Universal?

Šis plūstošais kompozīts ir paredzēts plašam restaurācijas procedūru klāstam. Sākot ar I–V klases restaurācijām un beidzot ar iedobumu un fisūru noslēgšanu un labošanu – šis materiāls ir izstrādāts izmantošanai gan konservatīvas, gan visaptverošas ārstēšanas plānos.

 

CLEARFIL™ MAJESTY ES Flow Universal ir piemērots izmantošanai dažādos gadījumos:

  • tiešās restaurācijas visās kavitāšu klasēs: zoba kakliņa bojājumi (piemēram, saknes virsmas kariess, ķīļveida bojājumi), zobu nodilums un zobu erozija;
  • kavitāšu nosegšana/oderēšana;
  • zoba pozīcijas un formas koriģēšana (piem. diastēmas slēgšana, zoba malformācija);
  • intraorāla atlūzušu restaurāciju labošana.

 

Kā tiek veikta toņa piemeklēšana?

Izmantojot CLEARFIL MAJESTY™ ES Flow Universal, toņa izvēle ir ārkārtīgi vienkārša. Divi savstarpēji papildinošie toņi, Universal (U) un Universal dark (UD), ir intuitīvi atlasāmi – nav nepieciešams izmantot toņu skalu. Tonis U ir piemērots praktiski visām priekšējo un aizmugurējo zobu restaurācijām. Tonis UD ir vislabāk piemērots tumšāka toņa zobiem (B3 un augstāk) ar mazu apkārtējā zoba struktūras apjomu, tostarp III un IV klases kavitātēm. Izvēlieties vispiemērotāko toni atbilstoši apstrādājamās kavitātes klasei un pacienta vecumam.

 

Krāsas piemeklēšana priekšējo un aizmugurējo zobu restaurācijām.

 

Kas ietekmē CLEARFIL™ MAJESTY ES Flow Universal veiktspēju?

Materiāla formulai ir papildināta ar vairākiem elementiem, kas nodrošina tā klīnisko efektivitāti.

  • Nano pildvielu tehnoloģija: uztur optimālu pildvielu saturu, lai nodrošinātu noturību pret saraušanos, uzlabotu nodilumizturību un ilgstošu pulējuma spīdumu.
  • Universāla toņa pielāgošana: nodrošina labu vizuālo integrāciju apkārtējā zoba struktūrā, veicinot racionalizētu toņa atlasīšanu.
  • Tiksotropas īpašības: materiāls ir plūstošs, izdarot uz to spiedienu uzklāšanas laikā, taču saglabā stabilitāti pēc iestrādes, tādējādi nodrošinot precīzu uzklāšanu.

 

 

Kādēļ apsvērt CLEARFIL™ MAJESTY ES Flow Universal izmantošanu?

Medicīnas speciālisti var novērtēt CLEARFIL™ MAJESTY ES Flow Universal priekšrocības, pateicoties materiāla:

  • paredzamajam lietojumam un rezultātiem;
  • estētiskajam rezultātam gan priekšējo, gan aizmugurējo zobu restaurācijās;
  • nodilumizturībai un noturībai pret virsmas bojājumiem;
  • rentgena necaurlaidībai, kas nodrošina rentgenogrāfiskās novērtēšanas iespēju;
  • atbilstībai dažādu restaurācijas vajadzību prasībām.

 

Kā uzklāt CLEARFIL™ MAJESTY ES Flow Universal?

Materiāla uzklāšana ir vienkārša un iekļaujas standarta klīniskajās darbplūsmās.

  1. Pēc nepieciešamības sagatavojiet un izolējiet apstrādājamo virsmu.
  2. Uzklājiet saderīgu adhezīvu (piem., CLEARFIL™ Universal Bond Quick 2).
  3. Uzklājiet materiālu, izmantojot šļirci un aplikatoru ar smalku uzgali.
  4. Veiciet cietināšanu ar gaismu saskaņā ar ražotāja norādījumiem (tipiski 20 sekundes, atkarībā no toņa un izmantotās polimerizācijas lampas).
  5. Veiciet gala apstrādi un pulēšanu, lai pabeigtu restaurācijas procedūru.

 

Šļirces tipa iepakojums ir ērts izmantošanā un ļauj veikt kontrolētu materiāla uzklāšanu

 


Tiešā restaurācija ar CLEARFIL MAJESTY™ ES Flow Universal.

 

Vai CLEARFIL™ MAJESTY ES Flow Universal ir saņēmis neatkarīgu avotu novērtējumu?

Jā! Zobārstniecības profesionāļi ir veikuši CLEARFIL™ MAJESTY ES Flow Universal (Super Low) novērtējumu, veicot trešo personu testēšanu un izmantojot salīdzinošo pārskatīšanu. Nesen šim materiālam tika piešķirta Dental Advisor 2025. gada pētniecības balva. Novērtējuma kopsavilkumā šī ASV bāzētā izdevuma vērtētāji norādīja:

 

“Testi liecina, ka šim kompozītam ir vienas no augstākajām fizikālajām īpašībām plūstošo kompozītu nozarē, kas konkurē ar izturīgākajiem biezajiem kompozītiem lieces un spiedes izturības ziņā, turklāt nodrošinot arī nevainojamu rentgena necaurlaidību.”

 

 

Daudzpusīgs plūstošs risinājums: CLEARFIL™ MAJESTY ES Flow Universal

CLEARFIL™ MAJESTY ES Flow Universal ir paredzēts restaurācijas procedūru atbalstam, nodrošinot kontrolētu lietojumu, estētisku integrāciju un mehānisku izturību. Tā var būt praktiska izvēle medicīnas speciālistiem, kas meklē uzticamu plūstošo sveķu materiālu plašam klīnisko scenāriju klāstam.

Lasīt vairāk >

 

Universal Excellence – viedi racionalizēti risinājumi

Kuraray Noritake Dental Inc. lieliski izprot mūsdienīgas zobārstniecības prakses vajadzības. Sarežģītu procedūru, intensīvu darba grafiku un pacientu vajadzību līdzsvarošana nav viegli izpildāms uzdevums. Tieši tādēļ mēs jau gadu desmitiem neatlaidīgi cenšamies racionalizēt, uzlabot un pilnveidot katru jūsu darba soli. Mūsu vīzija ir skaidra: pasaule, kurā materiāli un instrumenti jūsu rokās darbojas nevainojami, kur sarežģītība ir samazināta līdz minimumam un kur jums tiek dots pietiekami ilgs laiks, lai koncentrētos uz vissvarīgāko – ikviena pacienta individuālajām vēlmēm un vajadzībām. Tā ir zobārstniecības nākotne un kopā mēs varam to sasniegt.

Read more >

 

Divi toņi, visas zobu krāsas

CLEARFIL MAJESTY™ ES Flow Universal SAŅEM PĒTNIECĪBAS BALVU

Uzņēmums Kuraray Noritake Dental Inc. nesen prezentēja jaunu produktu – plūstošo kompozītu ar vienkāršotu toņu koncepciju: CLEARFIL MAJESTY™ ES Flow Universal. Kā vēstīts publikācijā, kas lasāma ASV žurnāla Dental Advisor 2025. gada janvāra/februāra numurā, šis jaunais produkts ir ieguvis prestižu pētniecības balvu par pārliecinošiem in vitro rezultātiem.

ĪSUMĀ PAR PRODUKTA ĪPAŠĪBĀM

Eiropas tirgū CLEARFIL MAJESTY™ ES Flow Universal tiek piedāvāts divās dažādās viskozitātes versijās – Low un Super Low, savukārt Amerikas Savienotajās Valstīs ir pieejama Super Low versija. Lai atvieglotu piemērotākā toņa piemeklēšanas procedūru, šis materiāls ir izstrādāts, piešķirot tam emaljai pielīdzinātas caurspīdības, dentīna iedvesmotas krāsu gammas un unikālas Light-Diffusion Technology (LDT) gaismas izkliedes tehnoloģijas kombināciju. Tādējādi tiek nodrošinātas izcilas toņu saskaņošanas iespējas, ļaujot izmantot minimālu toņu klāstu, kurā ietverti tikai divi savstarpēji papildinoši toņi – Universal (U) un Universal Dark (UD). Pēc sacietēšanas materiāls dabiski saplūst ar apkārtējo zoba struktūru.

 


 
Papildus intuitīvai toņa izvēlei, plūstošajam kompozītam piemīt vēl kāda ievērojama priekšrocība: tā ārkārtīgi augstā izturība. Ar 152 MPa lieces izturību un 374 MPa spiedes izturību, CLEARFIL MAJESTY™ ES Flow Universal (Super Low) ir tikpat izturīgs kā daudzi pastveida kompozīti. Attiecīgi tas ir piemērots izmantošanai pat augstai slodzei pakļautās zonās un tiek ieteikts šādiem lietojumiem:

  • tiešās restaurācijas visās kavitāšu klasēs: zoba kakliņa bojājumi (piemēram, saknes virsmas kariess, ķīļveida bojājumi), zobu nodilums un zobu erozija.
  • Kavitāšu nosegšana/oderēšana
  • Zoba pozīcijas un formas koriģēšana (piem. diastēmas slēgšana, zoba malformācija)
  • Intraorāla atlūzušu restaurāciju labošana
  • Keramisko un kompozīta inleju, onleju un venīru cementēšana (biezums: līdz 2 mm)

 

 

IZCILI IN VITRO RĀDĪTĀJI

Super Low īpaši zemas plūstamības versija, kas pieejama ASV, tika testēta Dental Advisor biomateriālu pētniecības centrā, un salīdzināta ar diviem citiem plūstošajiem kompozītiem. Testa laikā tika izvērtētas šādas materiālu īpašības: lieces izturība, elastības modulis, izturība pret lūzumiem, spiedes izturība, kā arī rentgena necaurlaidība. Turklāt pētnieki veica arī materiālu krāsu atbilstības spēju novērtējumu V klases kavitāšu atjaunošanas kontekstā A1, B2, C3 un D4 toņa protēžu zobos. Visbeidzot tika pārbaudīta arī rentgena necaurlaidība un plūstamības īpašības.

 


 
CLEARFIL MAJESTY™ ES Flow Universal uzrādīja lielisku sniegumu visos aspektos. Tā fizikālās īpašības uzrāda vienu no visaugstākajiem rezultātiem plūstošo kompozītu kategorijā un ir līdzvērtīgā līmenī, salīdzinot ar pastveida alternatīvām. Materiāla rentgena necaurlaidība tika atzīta par nevainojamu, tāpat kā viskozitāte, kas ļauj materiālam pēc uzklāšanas saglabāt sākotnējo formu. Un, neskatoties uz to, ka klāstā ir pieejami vien divi toņi, pētnieki apliecināja, ka CLEARFIL MAJESTY™ ES Flow Universal atbilst plašam dabīgo zobu toņu diapazonam.

 

 

PAR DENTAL ADVISOR

ASV bāzētās organizācijas Dental Advisor apbalvojumi Top Product (labākais produkts) un Preferred Product (vēlamais produkts) tika iedibināti, lai palīdzētu aizņemtiem praktiķiem orientēties plašajā jauno pieejamo zobārstniecības risinājumu klāstā, jo īpaši mazāk invazīvo metožu un standartizēto procedūru jomā. Šie apbalvojumi palīdz identificēt produktus, kas nodrošina pastāvīgu rezultātu uzlabošanu. Dental Advisor veic klīniskos novērtējumus un produktu veiktspējas testus neilgi pēc produktu ieviešanas tirgū un tiešsaistē publicē ikgadējos rezultātus, ļaujot praktiķiem vieglāk identificēt augstas kvalitātes zobārstniecības materiālus, kas atbilst viņu īpašajām vajadzībām. Pētniecības balva tika iedibināta, lai godinātu tos zobārstniecības produktu ražotājus, kas sniedz pastāvīgu ieguldījumu zobārstniecības materiālu izpētē, attīstīšanā un uzlabošanā, lai panāktu augstāku ārstēšanas kvalitāti.

 

Lai skatītu plašāku informāciju, apmeklējiet Dental Advisor tīmekļa vietni: www.dentaladvisor.com

 

Durably strong, highly aesthetic

PANAVIA™ Veneer LC WINS PREFERRED PRODUCT AND RESEARCH AWARDS

PANAVIA™ Veneer LC has been singled out for a Research Award in the category Research – Veneer Cement by Dental Advisor and for a Preferred Product Award in the category Cement: Esthetic Resin. Published in the January/February 2025 issue of the US-based organisation, the annual Top Product, Preferred Product or Research Awards are given to those materials and devices deemed by the publication’s consultants to deliver the best practice-based or lab-based performance in their categories.

 

BENEFITS IN A NUTSHELL

PANAVIA™ Veneer LC is a specialized veneer cement designed to provide exceptional bond strength to various substrates, along with outstanding gloss retention and wear resistance. The resin cement utilizes smaller-diameter spherical filler particles, facilitating easy dispensing from the syringe and excellent flowability for minimal film thickness. All of these attributes contribute to virtually no change in gloss or surface appearance of veneer margins over time.

 

 

EXCELLENT PROPERTIES IN VITRO

To assess the scientific performance of PANAVIA™ Veneer LC, its features and physical properties, specifically its bond strength to various substrates after artificial aging and its wear resistance, were tested in the Dental Advisor Biomaterials Research Center. The investigators’ testing of these attributes reflects the challenges such products must meet – “Ideally, esthetic veneer cements should have a long working time, curing on demand, excellent color stability, and high strength”.

 

To assess bond strength to dentin, enamel, IPS e.max CAD, and zirconia, the cements were subjected to six months of artificial aging using thermocycling. To test wear resistance after toothbrush abrasion, the testing method involved measuring depth of wear, change in surface roughness, and change in gloss based on a simulation of about 5.5 years of regular toothbrush use.

 

The investigators reported that PANAVIA™ Veneer LC “had the best gloss retention of the three cements tested and a very even wear pattern,” noting further that “having limited surface roughness after toothbrush abrasion can help lower staining and bacterial adhesion.” Overall, they said, “The PANAVIA™ Veneer LC cement system showed excellent adhesion properties and exceptional gloss retention and wear resistance,” concluding:

 

 

OUTSTANDING RATING OF 96 PERCENT

In addition, the product was tested in the clinical setting. 25 clinical evaluators used PANAVIA™ Veneer LC cement system in their dental offices. After a total of 166 uses, the light-curing resin cement received “excellent” to “very good” ratings with regard to completeness of the kit, the shade of the try-in pastes, ease of clean-up of the try-in pastes and excess cement, viscosity, working time and lack of shade shift after curing.

 

The evaluator’s clinical tips included:

  • „Use a micro brush or rubber tip to clean up excess cement before curing.”
  • „Apply glycerin gel to the margins after placing the veneer with the cement to eliminate the oxygen inhibition layer and ensure a complete cure before light curing through the gel.”

 

In their comments, they praised the ease of use of the system, the design of the syringes, the shade options and shade match between try-in and cement shades, e.g.:

  • “The white shade of the cement was opaque enough for efficient masking of discolored tooth structure.”
  • “Great esthetics, very easy to use, complete system.”

 

This resulted in an overall clinical rating of 96 percent and an equally high recommendation rate.

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. Research Awards were initiated to honour those manufacturers of dental products with an ongoing commitment to research, development and advancement of dental materials to enhance treatment quality.

 

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

 

A new universal adhesive born in Japan

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.

 

Practical chroma maps for anterior case

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!

 

 

Universal shade concept meets flowable restorative

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

 

Nature style: Observe. Understand. Copy.

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.