I would recommend having a dentist take a look at it. It could be anything, and without an exam or xray it would just be a wild guess. Pain could relate to a dental abscess, grinding habit, cracked tooth, etc. There are a bunch of things that could be causing it.
I had some part of a filling come out in a back molar and went to refill. Immediately after anes. wore off - that nerve pain you describe. It's been nearly 2 weeks, sedative filling and all; you touch one part of the tooth and youch. Feels like a nerve. So, was a nerve damaged? Root exposed? Dentist said tissue is healthy underneath (aside from the bad decay he refilled). Is root canal my only option?
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