Can a old root canal go wrong?
I had a root canal on one of my back molars in 2003. Now that same tooth that had the root canal and a crown put on it hurts. It hurts, and I think I have an infection since my gum is red and swollen by that tooth. If the dentist did a bad root canal job does he have to fix it for free? I mean would he not have to fix his own work? I called the dentist office but they are telling me that is not likely but could not answer me without seeing what the issue is.