Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

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

BBC World Service to broadcast Forum discussion on graphene July 6th, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Harris & Harris Group Portfolio Company D-Wave Systems Announces 1,000 Qubit Processor and is Discussed in the Economist June 23rd, 2015

Global Nanoclays Market Analysis, Size, Growth, Trends And Segment Forecasts, 2015 To 2022: Grand View Research, Inc June 15th, 2015

Investments/IPO's/Splits

Harris & Harris Group Portfolio Company, AgBiome, Announces Partnership to Accelerate the Discovery of Next Generation Insect-Resistant Crops July 1st, 2015

Nanometrics to Participate in 7th Annual CEO Investor Summit 2015: Investor Event Held Concurrently With SEMICON West in San Francisco June 25th, 2015

Harris & Harris Group Portfolio Company D-Wave Systems Announces 1,000 Qubit Processor and is Discussed in the Economist June 23rd, 2015

Nanowire LED Innovator Aledia Completes $31 Million Series B Financing June 18th, 2015

Announcements

A Stretchy Mesh Heater for Sore Muscles July 6th, 2015

BBC World Service to broadcast Forum discussion on graphene July 6th, 2015

Production of Zirconium Carbide Nanoparticles at Low Temperature without Thermal Operations July 5th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

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