This interview is one of the best that I have heard in a long time. It comments on the struggle to abandon mercury fillings . You should listen to it until the end where they detail the conflicts of interest in the FDA, and the American Dental Assoc. who refuse to recognize this danger due to the revolving door, and the profit motive. Another point made is that mercury fillings not only affect people who have them, but also the entire population since mercury fillings are one of the leading causes of mercury being put into the environment. Basically dentists have externalized the environmental costs of mercury fillings.
This from mercola.com. If you cannot see the whole graph, just click on the link below.