From the American Dental Association Council on Scientific Affairs
"Dental amalgam is considered a safe, affordable and durable material that has been used to restore the teeth of more than 100 million Americans. It contains a mixture of metals such as silver, copper and tin, in addition to mercury, which binds these components into a hard, stable and safe substance. Dental amalgam has been studied and reviewed extensively, and has established a record of safety and effectiveness."
To read the rest of the ADA Statement on Dental Amalgam, including statements from the World Health Organization (WHO), American Medical Association (AMA), U.S. Food and Drug Administration (FDA), and the Scientific Committee of the European Commission, please see the link below: