unexplained pain tooth making me feel depressed

[ItsAllAboutTheCakes]

I have suffered with jaw joint froblems for 2 years due to teeth grinding. I now have limited movement and struggle to chew. I was given a soft mouth guard at first which aggrivated symptoms and was then given a hard mouth guard/splint a few months ago.
The splint was very tight and hurt my front two teeth, one in particular was very sore so I stopped using it and went back to the soft one just to protect my teeth.
I have not been using the splint for at least 6 weeks now and the tooth that was being aggravated by the mouth guard is still painful. It hurts when I bite down or tap it. It can feel hot and cold but any more sensitive than my other teeth. I can't bite my food and with my jaw I can hardly chew either.
Been to my usual dentist as specialist can't get me in for a few weeks and he can't find anything wrong with the tooth but I don't think he takes me too seriously as I've been there once every few weeks over this last year with different problems relating to the jaw problem, broken teeth etc..
Anyone got any idea why the tooth might be so sore even though the dentist says it looks fine?

Sorry title should read pain in tooth

Anyone?

Didn't want to leave a garbled message last night.

I have TMJ but it doesn't sound as bad as yours. I have both a soft night guard for the and a hard retainer for the top due to a recent extraction. I alternate between them.

Recently a couple of teeth on the bottom started to hurt so, having had a warning from my dentist to come in a soon as I have problems instead of leaving them for months like I usually do, I made an appt. She couldn't find anything wrong so I went back with both guards as she suspected that one or the other might be pressing in the wrongs places. She adjusted the retainer slightly and the problem has more of less disappeared. She also suspected that the muslcles under the bottom jaw might be tighter than they should be causing the back tooth to hurt.

Go back to your dentist and see if they can adjust your guard a bit to see it that alleviates the problem.

I have tmj too and grind my teeth and clench my jaw. Anti inflammatorys really helped when the pain was bad. Have never been offered a mouth guard. Will they do it on the nhs. I recently had a crown due to a crumbling tooth which I benefits was due to the grinding.
Op have you tried a course of anti inflammatorys for your aching tooth? It might be a muscular issue rather than infection.