This is a memorable video about the dangers of mercury fillings or amalgam fillings. The video was made by the International Academy of Oral Medicine and Toxicology.
This is one of the reasons I finally had my mercury filling removed this year (2013). There’s a lot of information to be found on mercury fillings, definitely enough to be very worrying. I had five old mercury fillings. I found a good holistic dentist and had them removed and replaced with ceramics.
Here’s another example of a worrying webpage – http://articles.mercola.com/sites/articles/archive/2012/04/07/dangers-of-mercury-contamination.aspx
They also talk about mercury fillings in the Food Matters Movie.