MAY I ask what kind of bad reactions you are having with your present plastic fillings? and what type of plastic fillings they are? i'm goign to be replacing my amalgam fillings to some composite called "diamondcrown" (i think) soon...
also, you said you were sick about 3 years ago and replaced all your amalgam fillings -- did this help with your sickness?
btw, that's terrible about the dentist who hit you when you were little :( !!!