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U.S. Department of Health and Human Services

Medical Devices

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Dental Amalgam

Dental amalgam is a dental filling material that is used to fill cavities caused by tooth decay.

Tooth decay results in a loss of tooth structure. Dental amalgam is one type of dental filling material used to repair tooth structure that has been destroyed by decay and to restore the biting surfaces of a decayed tooth. Other materials, based on acrylics, are also used for dental fillings.

This website contains information about dental amalgam and other types of dental filling materials. It provides general information and is not meant to replace a discussion with your dentist.

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