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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.
It is possible that your jaw or bite is not in line which over time can cause pain. Overuse injuries are common as well, caused by either chewing gum, clenching the jaw from stress, and grinding your teeth during sleep. Jaw pain can also be caused by a sinus infection. Another common cause of jaw pain is a toothache or periodontal disease. Make an appointment to determine the correct cause of your pain, but in the meantime try icing your jaw, avoiding overuse of your jaw, and taking an over the counter pain medication.