I had a cavity filled about 3 weeks ago in my lower left second molar (the one way in the back.) I had to go in after the initial appointment to have the filling ground down a little, as it was too high. After that, though, it felt fine for the first couple weeks.
Within the last week, however, I've started to have sensitivity and pain in the tooth when I eat or drink hot or cold substances, when I bite on it in a certain way, and just today, when I breathe in a rush of cold air.
The wisdom tooth behind the molar hasn't come in yet, and the last x-rays showed that it was severely impacted and will need to be removed soon.
The pain has gotten much worse very rapidly and I'm really worried. I don't know if the pain could be caused by the wisdom tooth doing something to the nerve, or a crack in my tooth (I haven't noticed one, but I do grind my teeth at night sometimes), or from the filling maybe having been ground down too much, or from some other problem. It was a pretty shallow filling, also.
Everything that I've been able to find online has indicated that I shouldn't be having pain this late after a filling, and that the sensitivity indicates that I need a root canal. Do you have any better news for me?
Thanks very much,