Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Research Fills Dental Need

Abstract:
South Dakota Tech research group is investigating a new type of nanotech enabled dental filling.

Research Fills Dental Need

South Dakota School of Mines and Technology

Rapid City, SD – November 05, 2004

South Dakota Tech research group is investigating a new type of dental filling that looks better, lasts longer, and has fewer safety concerns than the silver fillings widely used today.

Dr. Hao Fong and his research group are using a $64,905 grant from the National Institutes of Health/National Dental and Craniofacial Research to fund the first year of a two-year research project. Fong’s research focuses on improving the polymer composite fillings already in use, despite their drawbacks. Polymer fillings stain, shrink and wear much more quickly than silver fillings, so they must be replaced in a fraction of the time.

Fong is an assistant professor in Tech’s Department of Chemistry and Chemical Engineering, and he is one of the leading scientists nationwide in the field of “electrospinning and nanofibers.”

“Improving the mechanical properties and reducing internal stresses have been among the major research efforts for polymeric dental restorative composites for decades,” Fong said. “If successful, this research may lead to the next generation dental restorative composite filling material, which will eventually benefit everyone who needs to repair a tooth cavity.”

To accomplish that, Fong is using electrospun polymer nanofibers to create the filling material. Electrospinning is a technology that produces unique polymer nanofibers with diameters typically in the range from 50 nanometers to 500 nanometers. The diameter of a human hair is 4,000 times greater than that of a nanofiber.

The electrospun polymer nanofibers possess extraordinary structural perfection and are mechanically strong. The finished material will be white to match the tooth it fills.

The research is important because traditional fillings — called amalgams — have created controversy over the years. Most people recognize dental amalgams as silver fillings. Dental amalgam is a mixture of mercury, and an alloy of silver, tin and copper.

Mercury generally makes up 45 to 50 percent of the compound, and is used to bind the metals together and to provide a strong, hard, durable filling. After years of research, mercury has been found to be the only element that will bind these metals together in such a way that can be easily manipulated into a tooth cavity.

However, some people believe that the mercury in tooth fillings can cause medical problems, including kidney, intestinal, neurological, fertility, heart, and other concerns.

The nanofiber research being conducted by Dr. Fong and his associates at South Dakota Tech will go a long way toward the elimination of these health worries.


Contact:

501 East Saint Joseph Street
Rapid City, SD 57701
(605)394-2400
800-544-8162
FAX (605)394-6131

Copyright © South Dakota School of Mines and Technology

If you have a comment, please 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

Possible Futures

Two-dimensional melting of hard spheres experimentally unravelled after 60 years: First definitive experimental evidence of two-dimensional melting of hard spheres April 21st, 2017

Rice crew revved for Nanocar Race: Nanocar creator James Tour and team take on international competition with single-molecule marvel April 20th, 2017

Making Batteries From Waste Glass Bottles: UCR researchers are turning glass bottles into high performance lithium-ion batteries for electric vehicles and personal electronics April 19th, 2017

Better living through pressure: Functional nanomaterials made easy April 19th, 2017

Investments/IPO's/Splits

180 Degree Capital Corp. Announces the Start of Kevin Rendino as Chairman and Chief Executive Officer and Completion of its Transition to a Registered Closed-End Fund March 31st, 2017

Harris & Harris Group Issues Its Financial Statements as of December 31, 2016, Posts Its Annual Shareholder Letter, And Will Host a Conference Call for Shareholders on Friday, March 17, 2017 March 15th, 2017

Harris & Harris Group Announces the Filing of Preliminary Proxy Materials Detailing Its Proposed Conversion From a BDC to a Registered Closed-End Fund January 24th, 2017

Harris & Harris Group Issues Reminder for Shareholder Update Call on January 10, 2017 January 10th, 2017

Announcements

Two-dimensional melting of hard spheres experimentally unravelled after 60 years: First definitive experimental evidence of two-dimensional melting of hard spheres April 21st, 2017

National Conference on Nanomaterials, (NCN-2017) April 21st, 2017

NanoMONITOR shares its latest developments concerning the NanoMONITOR Software and the Monitoring stations April 21st, 2017

Nanomechanics, Inc. Unveils New Product at ICMCTF Show April 25th: Nanoindentation experts will launch the new Gemini that measures the interaction of two objects that are sliding across each other – not merely making contact April 21st, 2017

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