Tom,
Sometimes it can be from nerve irritation. I have surgical nerve damage, but I think anytime you're having any kind of spasms or face and joint pain, the nerves, usually trigeminal, get irritated.
I had awful pain in four teeth(top left)for several years. I had the one that appeared to be hurting the worst pulled years ago and had a bridge put in. The other 3 continued to hurt as if there was an infection or abcess.
I would go to the Dentist, get x-rays, and there would be nothing. I thought I was grinding or clenching on that side. 2 years ago, I could not stand it any longer and had root canals in the remaining three teeth. The endo said there was nothing wrong with the teeth and he hated to "gut" 3 teeth, but the pain was unbearable. The pain came back, which should be impossible with the nerves gone, but it was unbearable again. This time, it seemed I could pinpoint which tooth was hurting the worst(one that the bridge was attached to.) The bridge came off and I had that tooth pulled. Perfectly good tooth and now another bridge to span 2 spaces. The pain was gone. All they ( the Endo, Dentist, and OS ) could figure out, was that the tissue around the roots was irritated due to nerve problems. The pain flared back up a few months ago, but the Endo said he hated to "gut" anymore good teeth, ask me to wait a while and see if it would settle down. I waited, the pain has settled down and hopefully won't come back.
I would not advise anyone to start having good teeth pulled or canaled. I had this pain for many years before I took such drastic measures.
I don't know if their opinion on the cause of the pain was correct. It does seem possible that if the facial nerves are irritated, it could present as tooth pain or ache.
I was having a lot more nerve pain (stinging and burning) around my ears and joint area during this period. I was having the Trigeminal "zaps" several times a day. That has gotten better, and again, the tooth pain is gone.
I'm sure there are many causes, this is just one theory.
I hope you all find the cause of your pain,
Cymy Sue
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