This article is from the Amalgam and Mercury-free Dentistry FAQ.
The simple answer is NO! What the FDA has done is to approve the two
components that make up amalgam i.e, mercury and dental alloy, but
have not seen fit to approve ''mixed amalgam,'' which is what is
actually used as the filling material placed in your teeth. Yes, that
is correct. Although charged by law to evaluate and classify every
medical or dental device to be used on or in humans, the FDA has not
evaluated or classified ''mixed amalgam'' the material used in 75-80%
of all tooth restorations. To avoid classifying mixed amalgam, the FDA
simply took the position that mixed amalgam was a ''reaction'' product
manufactured by the dentist when he or she mixed the mercury with the
alloy before placing it in your tooth.