clare, did Hesham tell you the name of the composite filling he used on you? If not you could ask Hesham what the name of the composite filling was. Then do a search for an Material Safety Data Sheet on the internet and that should tell you what is in the filling.

In my opinion, it seems rather careless for a mercury-free dentist that is removing amalgams not to use a rubber dam. I mean .... I'd think that a dentist would want to use every protective measure that is available even to the point of redundancy to try and avoid mercury exposure when removing amalgams.