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American Chemical Society's Weekly PressPac -- May 20, 2009
Date:5/24/2009

acterium abscessus Group"

DOWNLOAD FULL TEXT ARTICLE: http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/pr8009462

CONTACT:
Jagjit Yadav, Ph.D.
University of Cincinnati College of Medicine
Cincinnati, Ohio 45267-0056
Phone: (513) 558-4806
Fax: (513) 558-4397
Email: Jagjit.Yadav@uc.edu


ARTICLE #2 FOR IMMEDIATE RELEASE

Stronger material for filling dental cavities has ingredients from human body
ACS Applied Materials & Interfaces

Scientists in Canada and China are reporting development of a new dental filling material that substitutes natural ingredients from the human body for controversial ingredients in existing "composite," or plastic, fillings. The new material appears stronger and longer lasting as well, with the potential for reducing painful filling cracks and emergency visits to the dentist, the scientists say. Their study appears in the current edition of ACS Applied Materials & Interfaces, a monthly journal.

Julian X.X. Zhu and colleagues point out that dentists increasingly are using white fillings made from plastic, rather than "silver" dental fillings. Those traditional fillings contain mercury, which has raised health concerns among some consumers and environmental issues in its production. However, many plastic fillings contain controversial ingredients (such as BisGMA) linked to premature cracking of fillings and slowly release bisphenol A, a substance considered as potentially toxic to humans and to the environment.

The scientists developed a dental composite that does not contain these ingredients. Instead, it uses "bile acids," natural substances produced by the liver and stored in the gallbladder that help digest fats. The researchers showed in laboratory studies that the bile
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Contact: Michael Woods
m_woods@acs.org
202-872-6293
American Chemical Society
Source:Eurekalert  

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