Temporomandibular Joints (TMJ)

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The lower jaw hinges at the temporomandibular joints (TMJ), located in front of each ear. These most complicated joints in the body allow the lower jaw to open, close, rotate and slide. The TMJs are used over 5,000 times each day when we chew, swallow, yawn, smile, laugh, eat, and speak. The top row of teeth actually hinge when the skull rocks up and down on the top vertebrae in the neck.