Treatment of TMJ disorders is also dictated by the cause of the problem. Therefore, before any treatment is implemented, your doctor should make a diagnosis. TMJ disorders are broadly categorized into two categories: those that affect the muscles and soft tissues outside the joint, and those that affect the inside of the joint itself. The muscular disorders are limited to the muscles, and are experienced more as headaches, jaw aches, muscle spasm, feelings of tightness, facial pain, and the like. Jaw joint problems, or problems within the joint, include joint inflammation (TMJ arthritis), disc or meniscus displacement, jaw clicking or cracking, jaw locking, crepitus or “bone on bone,” and other similar symptoms. These two types of TMJ disorders are usually treated very differently, which is why it is important to start with a proper diagnosis before jumping into treatments.