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The temporomandibular joint (TMJ) is the sliding hinge that connects a person's skull and jawbone.1 TMJ disorders cause pain in the joint and in the surrounding muscles that control jaw movement. The exact cause of a person's TMJ disorder is often difficult to determine, as pain in this area can be the result of genetics, arthritis or a previous injury. Habitual clenching and grinding of the teeth may also bring on TMJ symptoms.
