Koi13, I don't think it has been tested, I will bring this up to my doctor when I go Monday. I do have several fillings, I am 26 so most of mine would have came in the late 90's and on. I know how you feel about researching every possibility, it's very time consuming. I find myself putting other things off just to sit around on the computer for hours digging for any information that may be out there. Good luck and I hope you find answers soon.