QUESTION: I went to the dentist last week to replace the filling on my top front teeth and to replace the crown on the back tooth. He replaced the filling in my front teeth and then shortened my front teeth significantly without discussing this procedure with me, why I would need it, what the risk and benefits were and getting my approval to do this. He never told me what he was doing during the entire time he was working on my teeth. When I asked him why he did.