Researchers claimed on 2 October to
have developed new dental fillings that can repair tooth decay, prolong the
life of composite fillings and reduce the need for mercury-based amalgams. The new
bioactive glass composites release fluoride as well as significant quantities
of calcium and phosphate that are needed to form tooth mineral. Researcher noted
that while current dental fillings include inert materials, the bioactive glass
composite interacts with the body providing minerals that replace those lost to
tooth decay. The new bioactive glass also creates an alkaline environment that
discourages the bacteria that caused the initial decay. Researcher said this
will prolong the life of fillings and slow secondary tooth decay.
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