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?

modern American restorative dentistry.

The debate is no longer simply about whether amalgam works.

It is increasingly about whether continuing to use mercury is necessary when suitable alternatives exist.
Can Mercury From Dental Fillings Enter Your Body?

Yes. Dental amalgam fillings can release small quantities of mercury vapor, which may be inhaled and absorbed through the lungs.

The amount released can vary depending on several factors, including the number and condition of fillings and habits such as teeth grinding.

Activities involving chewing may also temporarily influence mercury vapor release.

However, detecting mercury exposure is not the same as demonstrating mercury