TMJ stands for ‘Temporomandibular joint ‘. Temporomandibular joint is a joint that connects jaw to skull. When this joint is damaged or injured, it leads to localized pain disorder, which is called TMJ. TMJ produces physiologic stress, pain and dysfunction in the joints, supporting ligaments and associated muscles. Cause of TMJ includes injury of teeth and jaw, such as misaligned teeth and jaw, teeth grinding, sinus pain, pressure, stress, etc.