Q. About a month ago, i went for routin cleaning. The Dentist discover a cavity on one of my back tooth( which has a filling done before) After that the tooth become very sensitive and tender. I went back to the Dentist four time since then. She said the bite was not right and did some filling ( twice). Still the tooth is very tender, and senstive. Now she wants to try some procedure(remove the filling and put a medicated one)If that does not work she will do root cannal. I never had a problem with the tooth to beign, now it fills like there is little tooth left to do any thing with. What do you suggest my next step should be? ( i have been very careful not to use the affected tooth, vene afraid to put any thing in that side of my mouth) Appreciate your help