From the San Jose Mercury News:
Two years ago, Dr. David Biles videotaped a string of patients in his Santa Cruz dental office talking about what happened after he removed their mercury amalgam fillings. All of them reported they felt healthier; they said symptoms such as pain, high blood pressure and bleeding gums went away.
This month, the U.S. Food and Drug Administration revised its consumer advice on mercury amalgam fillings in the wake of a settlement in a lawsuit by Moms Against Mercury and other nonprofits against the federal agency.
The FDA Web site now says mercury amalgams “may have neurotoxic effects on the nervous systems of developing children and fetuses.” The agency also reopened the comment period until July 28 on a rule designating mercury amalgam as a Class II device with special controls on its use.
Of course, the American Dental Association (ADA) insists that nothing at all has changed , that mercury amalgam fillings are perfectly safe. But amongst other problems with their position is the fact that the research they cite in this press release is flawed. 
Read the updated amalgam safety Q & A from the FDA, including links to the summary and transcript of the 2006 panel meeting on amalgam risks.
Let the FDA know your views on this issue . At Regulations.gov, search for FDA-2008-N-0163 and follow the on-screen instructions.