Home > Press > Hybrid composite for root canal treatment
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.
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
Phone +49 89 1205-1399
Copyright © Fraunhofer-Gesellschaft
If you have a comment, please Contact
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
News and information
Sopping up proteins with thermosponges: Researchers develop novel nanoparticle platform that proves effective in delivering protein-based drugs October 22nd, 2014
Brookhaven Lab Launches Computational Science Initiative:Leveraging computational science expertise and investments across the Laboratory to tackle "big data" challenges October 22nd, 2014
Bipolar Disorder Discovery at the Nano Level: Tiny structures found in brain synapses help scientists better understand disorder October 22nd, 2014
NIST offers electronics industry 2 ways to snoop on self-organizing molecules October 22nd, 2014
Imaging electric charge propagating along microbial nanowires October 20th, 2014
Superconducting circuits, simplified: New circuit design could unlock the power of experimental superconducting computer chips October 18th, 2014
Nanocoatings Market By Product Is Expected To Reach USD 8.17 Billion By 2020: Grand View Research, Inc. October 15th, 2014
Perpetuus Carbon Group Receives Independent Verification of its Production Capacity for Graphenes at 140 Tonnes per Annum: Perpetuus Becomes the First Manufacturer in the Sector to Allow Third Party Audit October 7th, 2014
NanoTechnology for Defense (NT4D) October 22nd, 2014
Mechanism behind nature's sparkles revealed October 22nd, 2014
TARA Biosystems and Harris & Harris Group Form Company to Improve Safety and Efficacy of New Therapies October 22nd, 2014
Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014
Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014
Diagnostic tool for therapeutic plasma medicine September 8th, 2014
New Powder Nanocomposite Miracle in Bone Recovery May 10th, 2014
Newly-Produced Bone Cement Able to Carry Medicine April 21st, 2014