My dentist removed a very old filling and replaced it with a new white one. He said I had a cavity in the tooth and it needed to be done. The tooth NEVER bothered me until he took out the old filling and put in the new one. It then felt like I had a cavity. After approx. three weeks I went back to the dentist and he had no idea why the tooth was hurting so he took out the new filling and put in a medicated treatment which was actually clove oil and put in a temporary filling. He said if it still hurt to go to an endodontist for a root canal, although he wasn't sure that was really the problem. He also said that if the pain subsided after a week, to return to him and he would refill it again. It feels a little better with the temp in but it still feels like air is getting in there somehow. The temp filling is very rough and sharp way up in the back towards the next tooth. Its my right molar, second from the back. Any ideas or input. I really don't want to get a root canal if its not necessary. $$$$$$$$$
Thanks