Hello doctor,
I am currently following an orthodontic treatment. Recently, I started to have sensitivity to hot and cold food items on a tooth that had an old filling on it. The filling was made when I was 12 years old. I never had any problem with this tooth before. The dentist suggested that the filling might be leaking and he recommended me a root canal treatment. I asked for a filling replacement first. After the filling replacement, everything was going well for a few days. I could drink cold or very hot fluids without any sensation. But now it is starting to become sensitive again. What to do?
Please help.