Clicking in the jaw is a common condition often associated with temporomandibular joint (TMJ) disorders. The temporomandibular joint connects the jawbone to the skull and helps in speaking, chewing, and opening or closing the mouth. When this joint does not move smoothly, it may produce a clicking or popping sound. In some cases it may occur without pain, but persistent clicking along with pain or difficulty opening the mouth should be evaluated by a specialist.