A member asked:

Jaw cracks and locks on left side when i move it, what could this be?

2 doctors weighed in across 2 answers

Cracking, locking: Popping of the jaw is usually caused by a partially displaced disc, while cracking of the jaw usually signifies arthritis, usually osteoarthritis. If your jaw locks intermittently, the disc may be completely displaced. If you're having no pain, you're fortunate. If it's causing pain, evaluation and treatment is indicated. An MRI is the only way short of surgery to see what's going on. Start with..

Answered 6/10/2014

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TMJ: This is likely to be a TMJ (temporomandibular joint) problem. Have your dentist evaluate it.

Answered 6/10/2014

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