I had a slight sensitivity in one of the molars . Dentist said it was a cavity and cavity was filled with temporary filling and subsequently with permanent filling. But after the filling that tooth was slightly sensitive towards cold or sweet things but was bearable. I was feeling uneasy while biting food on that area but was adjustable. But after 5 months that tooth is very sensitive and biting on that tooth is not possible because it is causing pain during chewing. So I am using the opposite side of mouth. please help me about the problem.