Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Hybrid composite for root canal treatment

Abstract:
A dentist carrying out root canal treatment will need to use a variety of compounds. These do not always bond together properly and sometimes expensive follow-up treatment has to be performed. But a new class of material meets the requirements and solves the problem.

Hybrid composite for root canal treatment

Munich, Germany | Posted on November 2nd, 2009

Unrelenting toothache means a visit to the dentist is inevitable, and if the tooth decay is really bad root canal treatment is often the only option. The dentist first removes the nerve completely and then closes the ensuing canal with a filler. This must be airtight to prevent bacteria from entering and causing renewed inflammation. On the other hand, the material must also be removable. If the natural crown is severely damaged, the dentist will anchor a root post in the previously filled canal using dental cement. The post provides an anchor for the composite material used to rebuild the remaining part of the tooth, the core, which serves as the base for the core build-up material and the prosthetik treatment e.g. a crown. In root canal procedures, therefore, various materials are combined, each fulfilling different requirements. The problem is that the materials are not always compatible with each other or do not bond properly with the hard dental tissue. As a result, the post may break, the core and the crown may not adhere to the post properly, and the expensive crown may need replacing. Such faults are not rare and generally occur in the single-digit percent range.

Researchers at the Fraunhofer Institute for Silicate Research ISC in Würzburg working in collaboration with their research partners at VOCO GmbH have now developed a material that can be used for all the components used in root canal treatment. "The basis of this material is provided by ORMOCER®s," explains Dr. Herbert Wolter, group manager at the ISC. "We have combined these ORMOCER®s with various nano- and microparticles to achieve the highly diverse properties needed." Materials used in filling the root canal, for instance, should not shrink as they harden, should form an airtight bond with the dental material and be visible in x-rays. The material used to rebuild the tooth, on the other hand, should have the same properties as the tooth itself. "Hybrid materials are well suited to these requirements. For instance, they only shrink by about 1.3 percent as they harden, while standard materials generally shrink by 2 to 4 percent. ORMOCER®s can also be adapted to adhere to the different parts of the tooth," says Wolter. VOCO GmbH is already producing dental preparations and product development is making good progress. Market launch could therefore be just a few years away.

####

About Fraunhofer-Gesellschaft
As it stands today, the Fraunhofer-Gesellschaft has attained a size and influence that makes it an undisputedly vital element in Germany’s industrial and scientific landscape. But the early years were far from easy. The research organization was founded in 1949, in the same year as the Federal Republic of Germany, and started out as a small office with just three employees. The original purpose of the non-profit organization was to distribute grants and donations for research of direct relevance to industry. The impressive march of progress as seen and experienced by the Fraunhofer-Gesellschaft in its first 50 years is documented in a seven-part Chronicle.

The Fraunhofer-Gesellschaft owes its name to Joseph von Fraunhofer (1787-1826), the successful Munich researcher, inventor and entrepreneur. The story of his life and works clearly indicates why he was chosen as the role model for our organization.

For more information, please click here

Contacts:
Phone +49 89 1205-1399

Copyright © Fraunhofer-Gesellschaft

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Researchers engineer improvements of technology used in digital memory November 24th, 2014

Research reveals how our bodies keep unwelcome visitors out of cell nuclei November 24th, 2014

An Inside Job: UC-Designed Nanoparticles Infiltrate, Kill Cancer Cells From Within November 24th, 2014

Cooling with the coldest matter in the world November 24th, 2014

Possible Futures

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Researchers discern the shapes of high-order Brownian motions November 17th, 2014

VDMA Electronics Production Equipment: Growth track for 2014 and 2015 confirmed: Business climate survey shows robust industry sector November 14th, 2014

Open Materials Development Will Be Key for HP's Success in 3D Printing: HP can make a big splash in 3D printing, but it needs to shore up technology claims and avoid the temptation of the razor/razor blade business model in order to flourish November 11th, 2014

Announcements

Research reveals how our bodies keep unwelcome visitors out of cell nuclei November 24th, 2014

ASU, IBM move ultrafast, low-cost DNA sequencing technology a step closer to reality November 24th, 2014

An Inside Job: UC-Designed Nanoparticles Infiltrate, Kill Cancer Cells From Within November 24th, 2014

Cooling with the coldest matter in the world November 24th, 2014

Dental

Nanocomposites Strengthen Bone Implants November 13th, 2014

NYU Researchers Break Nano Barrier to Engineer the First Protein Microfiber October 23rd, 2014

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

Diagnostic tool for therapeutic plasma medicine September 8th, 2014

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More












ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE