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Look Ma, No Mercury In Fillings!, Southwest Research Institute Researchers Develop New Dental Restorative Material


11/10/2009 7:01:36 AM

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EurekAlert! -- November 9, 2009 -- Tooth enamel is hardest material in the human body because it's made almost entirely of minerals. As tough as it may be, however, enamel can be broken down by bacteria, forming cavities and eventually destroying the tooth. That's why dentists repair cavities by filling them with a material to replace the lost enamel. The most common such restorative is a material invented in the 19th-century known as amalgam -- the classic silver-black fillings many people have.

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