I have one metal filling that my new dentist had been on at me to replace for cosmetic reasons with a white filling. I put it off in the summer as my car had needed expensive work done. Last week I went to get it done but it was canceled due to snow. Now I looked on line and something suggested mercury may be an issue...it's a fairly old filling, about seven years, and i've no idea if it's mercury.I think my dentist is out to make money a lot...they suggest cosmetics and extras often. I'm twelve Weeks at the moment. Thanks