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The temporomandibular joint connects the lower jaw to the temporal bone of the skull and is responsible for bringing the lower and upper jaws together. It is one of the most frequently used joints in the body. Depending on the underlying cause, jaw pain can occur suddenly or build up over time.
Injury to or disorders of these structures can all result in pain in the jaw area. Jaw pain may occur on one side or on both sides, depending upon the cause. Jaw pain can result from trauma to the jawbone, including fractures and dislocations. Also depending upon the exact cause, the pain may occur when chewing or may occur at rest. Additionally, other medical conditions not related to the TMJ may cause perceived pain in the jaw area.