About a year ago my dentist finally got me convinced that I should get crowns. He told me that with time, my teeth will deteriorate as I have "weak teeth". Now the other teeth behind the crowns are deteriorating as I'm struggling to brush them. Recently someone I know told me that I should be careful about the way I laugh because she sees the metals at the back of the crowns. I'm starting tothink that it was only a moneymaking scheme. He mended mine, my sister's and my mom's medical aid together to get it done... I want to get it redone, any advise?? PLEASE...