3 years ago I had a crown put on. The tooth forever bothered me. I've been to the dentist and no cavity. However, I have gotten 3 different dentist to look at crown and 2 out of 3 say that the crown looks high. One dentist said that this could have been the cause of my recent TMD. Has ayone heard of this? I am in the process of obtaining impression before crown was put on but dentist that did crown refuses to give it to me because I believe he knows that he will be liable. What is my next step??