Dentaltown March 2013 - (Page 114)

product profile Introducing the Future of Composite Technology Tetric EvoCeram Bulk Fill Tetric EvoCeram Bulk Fill by Ivoclar Vivadent represents a significant advancement in the field of resin-based filling materials. What sets this composite material apart from any other is its unique formulation designed to provide faster, more efficient placement of direct composite restorations while sustaining long-term clinical performance. Unlike traditional composite formulations that may have been simply modified to allow for placement in thicker layers and which may result in compromised aesthetics, reduced working time, the need for additional dispensing equipment or placement of a covering layer, Tetric EvoCeram Bulk Fill represents entirely new technology for the faster, more efficient placement of direct composite restorations without compromise to any physical properties. Three new patented technologies have been incorporated into a well-proven nano-hybrid composite formulation: Ivocerin, Stress Relievers and a Light-Sensitivity Filter Ivocerin Ivocerin is a new germanium-based light-initiator developed by Ivoclar Vivadent and used exclusively in Tetric EvoCeram Bulk Fill. This new initiator allows Tetric EvoCeram Bulk Fill to cure faster and deeper than other composite materials without having to increase translucency or reduce working time. With Ivocerin, Tetric EvoCeram Bulk Fill can be cured in layers of up to 4mm in just 10 seconds (using a light with minimum output >1,000 mW/cm2.) The absorption spectrum of Ivocerin fills the “gap” between traditional light-initiators (e.g., Camphorquinone, Lucirin TPO, PPD) used in today’s most popular composite materials (Fig. 1). It not only cures fast, it cures well beyond the 2mm limit of tradiFig. 2 tional initiators, achieving efficient polymerization at 4mm (Fig. 2). Fig. 1 Fig. 3 Fig. 3: Shrinkage stress relievers are pre-polymer ﬁllers which absorb stresses generated during light-polymerization. The stress relievers have a low modulus (10GPa) as compared to the glass ﬁllers which have a high modulus (71GPa), making them much more ﬂexible. Stress Relievers New fillers (pre-polymers) reduce shrinkage strain by absorbing the stresses generated during the light-curing process. Undoubtedly the greatest concern of most dentists and their reason for not moving to a “bulk-fill” composite are volumetric shrinkage and shrinkage stress. Volumetric shrinkage is not really a concern as long as the shrinkage stress can be properly managed. It is the stress caused during polymerization that cause materials to pull away from cavity walls creating gaps that can lead to marginal leakage, black lines and eventually failure of the composite restoration. Tetric EvoCeram Bulk Fill includes a new, additional filler technology that is flexible and relieves shrinkage stress during polymerization. This keeps the material from pulling away from the walls maintaining marginal integrity on a very high level (Fig. 3). Light-Sensitivity Filter Sufficient working time is critical when placing direct composite restorations. Tetric EvoCeram Bulk Fill offers the combination of a fast curing time with an extended working time. A special additive, within the initiator system, delays the effects of ambient light extending the working time. This additive acts as a shield delaying the effects of ambient light, thus extending the working time. However, light emitted from curing lights is able to penetrate this shield, allowing 4mm increments of the material to be cured in just 10 seconds! n Company Contact Fig. 1: Ivocerin is more reactive to curing lights and ﬁlls the gap between traditional initiators. Fig. 2: Ivocerin acts as a polymerization booster and reacts beyond the depth of 2mm, where traditional intiators become ineffective. 114 MARCH 2013 » dentaltown.com Visit www.ivoclarvivadent.us/tetric to learn more about Tetric Evo Ceram Bulk Fill or scan the QR code. http://www.ivoclarvivadent.us/tetric http://www.dentaltown.com

Table of Contents for the Digital Edition of Dentaltown March 2013

Dentaltown.com Highlights
Howard Speaks: Dentistry Could Come Back with a Vengeance
Professional Courtesy: I’m No Anti-Dentite
Continuing Education Update
Second Opinion: Should Endodontists Place Implants?
Needle Stick Question
Am I the Only One Who Didn’t Know How to Use My Loupes?
The Patient Blames Me for Cracking His Tooth
Corporate Profile: {KöR}
CAD/CAM Materials
Dentaltown Research: Cosmetic Dentistry
Do-it-Yourself Finance, Part IV: Savings and Investing
Product Profile: Centrix
Keep Them Coming Back
You Should Know: Likeable Dentists
Multimodality Endodontics
Endodontics for the Recent Graduate: Instrumentation
Continuing Education Porcelain Veneers: From Case Selection to Cementation
8½ Tips for Dental Safety Checklists
How Prepared Are You For a Medical Emergency?
Dental Stem Cell Preservation and the Dawning of Regenerative Oral Medicine
Product Profile: Ivoclar EvoCerem
Narrow Diameter Implant Overdentures with Locator Attachments
In This Issue: Zeroing in on Xerostomia
Perio Reports
Ad Index
Profile in Oral Health: Substances for Targeting Xerostomia
Dentally Incorrect

Dentaltown March 2013