I had one filling done and he was unable to get the bit right. As a result all of my teeth had move to accomadate the change in bite and my teeth moved so much that my front teeth are no longer straight. In addition he did not listen to my complaints when I told him about the problem. Finally, the tooth he filled is now sensitive to hot, cold and preassure. He also injured my gum line so bad that that tooth is now extremely sensitive to cold.