About 4 years ago I started experiencing pain in my left upper first molar when eating anything (not heat-related at this time). I was told it was due to a wisdom tooth that was still in the gum, so I had it removed. Then, when the pain remained, I had a root canal done on the molar. The pain remained, and I just dealt with it for a few years.
Then I got an infection and was told that the pain and infection were related to my second molar (this was by a different dentist). So I had a root canal done on my second molar. The pain disappeared. But the tooth was sensitive so I didn't get it capped. After a few months, I started experiencing intense pains in the first molar when eating (not drinking), anything hot. I was referred to a root-canal specialist who believed he should redo the first root canal I had had on my first molar. Afterwards the heat pains subsided for about 2 months. Now they are back and occur even when drinking.
What could be causing this pain? Could it be something besides the tooth? Maybe the gum? I have already been to 2 dentists and a specialist.
Thanks.
Sam