Patients' safety is the top priority of any health care provider. A trusted dentist in Philadelphia, for instance, makes sure that the substances to be placed in a patient's tooth cavity are free from any toxic material. An article written for Colgate.com discusses dental amalgam, a substance widely used as dental filling, which contains mercury, an element that is known to be harmful to human health. Despite the FDA's conclusion that amalgam is safe to use, there's still speculation about its safety considering several known facts, including mercury’s effect on several body systems. The controversy over amalgam centers on how much mercury fillings released and how much the body absorbs. In the past, amalgam fillings were thought to be inert. This would mean that no mercury was released once the filling was placed in the tooth. In recent years, sophisticated tests have changed this view. Very small amounts of mercury in the form of vapor can be released as the amalgam filling wears.
http://www.philly-dentist.com/a-trusted-philadelphia-dentist-protects-patients-with-safer-fillings/
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