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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.
Facial pain can be caused by an uneven bite, meaning that the jaw muscles are not working properly. When these muscles function inefficiently, they experience signs of stress, including pain, swelling and discomfort. Because the jaw muscles run from ear to ear, symptoms of jaw distress may surface in the face.