Tooth pain can be caused by a dental problem, such as a cavity or gum disease, or by a non-dental problem like a sinus infection. Some dental pain is caused by stress – if you’re stressed to the point of clenching your jaw and grinding your teeth, you can develop pain associated with the temporomandibular joint (TMJ).
Your temporomandibular joint is the hinge that connects your jaw to your skull – it is this joint that enables the movement of your jaw up and down and left and right, to allow for chewing, yawning and talking. Any problems that occur with this particular part of the skull are given the name temporomandibular disorders (TMD). These are also sometimes called TMJ dysfunction.
Clenching your jaw and grinding your teeth puts an additional strain on the muscles of the jaw and can contribute to pain in the jaw. TMJ problems can affect a person’s ability to speak, eat, and chew.
Pain in this part of your jaw is particularly common. Around 30 percent of adults will experience it at some point in their lifetimes, and usually it will go away of its own accord.


