For generations, dentists placed silver-colored fillings in millions of teeth. But behind their familiar appearance lies a controversial ingredient: mercury. Now that Europe has largely phased them out, Americans are asking an uncomfortable question—why are they still permitted in the United States?

filling can temporarily increase exposure to mercury vapor.

Removing a functioning restoration can also require removing additional healthy tooth structure, potentially weakening the tooth.

Every replacement introduces the possibility of further dental treatment.

However, replacement may be appropriate when a filling is cracked, damaged, leaking, associated with recurrent decay, or otherwise clinically unsuitable.

People with a confirmed allergy to an amalgam component may also require individualized assessment.

The decision should be based on an examination by a qualified dentist rather than fear generated by an alarming headline.

Importantly, claims that removing old fillings can automatically reverse fatigue, memory problems, autoimmune