Hi Doctor Hughes. A molar tooth that has a filling redone about 8 months ago has become extremely painful.There is a dull ache on this tooth and it also looks as if there is a small gap between tooth and gum. I suffer from constant twinges when eating hot and cold food too. What is likely to be the problem here? There is a tooth next to it that was removed last year and the one on the other side is bent inwards and that does have a small hole in it. I know that’s probably another problem in its self but what do you think? I would like a general idea before I decide to visit my dentist, will this cost a lot to fix up do you think? Thank you for your help.