http://www.fda.gov/medicaldevices/productsandmedicalprocedures/dentalproducts/dentalamalgam/ucm171094.htm
"Studies have shown that the amount of mercury you are exposed to from your fillings is less than the amount that most people are exposed to in their daily environment or in the food they eat."
http://www.colgate.com/app/CP/US/EN/OC/Information/Articles/Oral-and-Dental-Health-Basics/Checkups-and-Dental-Procedures/Fillings/article/Dental-Amalgam-A-Health-Risk.cvsp
The "Mercury Toxicity" Scam: How Anti-Amalgamists Swindle People Stephen Barrett, M.D.
http://www.quackwatch.com/01QuackeryRelatedTopics/mercury.html
The science has been done. The verdict has been in for decades: off gasing is in minute quantities, barely detectable. People aren't being turned into zombies or drooling dementia cases by the fillings in their teeth. Nor do fillings cause autoimmune disease or getting rid of them cures autoimmune disease.
Of course, inhaling large quantities of elemental mercury vapor is bad for you, it's why hospitals now treat broken glass thermometers and mercury containing CFLs like hazmat scenes. However, what's coming off a filling is negligible.
This post is what we mean by SCIENCE. It has been tested and proven.
Your video is a cartoon.