FDA: Possible Risk From Dental Fillings
FDA: Possible Risk From Dental Fillings
To Settle Lawsuit, FDA Now Says Mercury From Fillings Might Pose Risk to Some
June 5, 2008 -- Mercury from amalgam dental fillings may be toxic to children and developing fetuses, the FDA now admits.
Experts say there's no proof that dental fillings cause harm to consumers. But they also say there's no proof that the fillings -- which are half mercury by weight -- are entirely safe.
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On its web site, the FDA has dropped much of its reassuring language about dental amalgam. And it's added what amounts to a warning: "Dental amalgams contain mercury, which may have neurotoxic effects on the nervous systems of developing children and fetuses."
And there's more. "Pregnant women and persons who may have a health condition that makes them more sensitive to mercury exposure, including individuals with existing high levels of mercury bioburden, should not avoid seeking dental care, but should discuss options with their health practitioner," the FDA web site now says.
The changes come in response to a lawsuit filed by consumer groups and individuals concerned about mercury exposure. To settle the suit, the FDA agreed to update its web site.
And the federal agency also agreed to rule -- within one year -- on exactly how dental amalgam products should be regulated, and exactly what warnings consumers should receive from their dentists and doctors.
"It's been a long time coming," Nick Brooks, a staffer for Consumers for Dental Choice, one of the groups that brought the lawsuit, tells WebMD.
"This is a good thing. It will be good to have a rule finalized in a year," FDA spokeswoman Peper Long tells WebMD. "In some cases, we know mercury can have effects on the nervous system. It is something we need information on so we can give the public the best information on the risk from a product like this."
The FDA in 2002 proposed to classify the mercury-containing fillings as a Class II device -- meaning a device that isn't absolutely safe and should carry some kind of special controls (a Class I device, like a Band-Aid, needs no warning; a Class III device, like a cardiac defibrillator, requires specific FDA approval).