Hi! Two years ago I had a root canal done on an upper (molar?) tooth. They never put a crown on it and recommended against it simply because they said the tooth was too fragile and that the root canal had been too extensive for that. One year ago I chipped part of the tooth and they ground it down and said there was a small fracture in the tooth but nothing to worry about. Recently this same tooth has been having pain--mostly when I chew (to the point I have not been chewing on that side) and when I am not chewing it feels mostly like a very, very dull numbness or throbbing, almost like an old scab that feels itchy around that area. Another note-my impacted wisdom teeth have been growing in, especially the one on the side of this tooth has come through the gums a little. I am wondering if my roots could be infected again or if the tooth has cracked completely? Or could it just be that the impacted wisdom tooth is pushing the roots of my root canal causing pain?