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A member asked:
What is the cause of my jaw snapping or locking shut?
A doctor has provided 1 answer
TMJoint disc issue: The internal disc of your temporomandibular joint(s) which lies between the head of the condyle of your lower jaw and the glenoid fossa of your maxilla cannot function properly and gets trapped causing your jaw to lock open, closed or creates joint noises.
Answered 12/10/2013
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