In dentistry, TMJ is an abbreviation for Temporomandibular Joint. Its usage describes a problem that concerns the muscles and joint that connect the lower jaw with the skull. The condition is characterized by facial pain and restricted ability to open or move the jaw. It is often accompanied by a clicking or popping sound when the jaw is opened or closed. There are two TMJ joints – one on the left side of the jaw and one on the right. Muscles attached to and surrounding the joint control the movement of the jaw, allowing us to talk, chew, yawn and perform other functions with our mouths. Many people experience TMJ disease, which causes facial pain; jaw clicking, popping and locking; earaches; headaches; bite problems; and other unpleasant symptoms.

Note: The definitions on our web site are for reference purposes only and in no way represent any official dental advice. If you are experiencing any symptom defined by a term, you should seek the advice of your dental practitioner.

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