According to the FDA, mercury dental fillings cause no harm and are considered "moderate risk" devices. http://bit.ly/31d85M
The American Dental Association (ADA) was "happy" with FDA decision not to place any restriction on the use of dental amalgam. The FDA categorized the encapsulated dental amalgam as a class II medical device, in the same class as gold and tooth-colored composite fillings http://bit.ly/43jfAE
Related:
Find and Compare Mercury in Commercial Fish http://mercury-commercial-fish.findthebest.com
Image source: Amalgam filling, Wikipedia, public domain.
Image source: Amalgam filling, Wikipedia, public domain.