they are only biased because they say mercury fillings are not harmful. i lived through mercury poisoning for 33 yrs and i have seen patients for 5 years, many of whom were as sick as me. now, they are much better and leading normal lives, whereas with mercury, they couldn't even work at all. so, yes, based on that all government studies saying they are ok, are biased. i know you would like to think the government has your best interest at heart, but the government has it's own best interest at heart and will do many things that are harmful to people in the name of money. they pass the buck and have bureaucracy to cover their accountability