Many of our friends have experienced jaw joint pain in our lives, and many times they simply do not know what causes it to occur. Jaw joint pain is a clinical manifestation of temporomandibular joint disorder, which is one of the common diseases of the oral and maxillofacial area. The causes of jaw joint pain are usually related to local trauma, while some patients may suffer from disorders of the occlusal relationship. However, regardless of the cause of jaw joint pain, patients should pay attention to timely diagnosis and treatment. And what are the diagnostic criteria for the disease? 1, masticatory muscle pain: complaints of muscle pain in the jaw, temple, face or peri-auricular region, and tenderness in at least 3 of the 20 scheduled muscle sites on palpation. 2. TMJ pain: complaints of TMJ pain, including pain during jaw action or during assisted or unassisted jaw movements. Pain on the lateral column and/or on palpation of the joint via the external auditory canal. No coarse, heavy bone rubbing sounds. 3. Temporomandibular joint osteoarthritis with the same criteria as temporomandibular joint pain, with additional coarse and heavy bone rubbing sounds or positive imaging findings. 4, Masticatory muscle pain or psychosocial complications of TMJ pain can be graded using a graded chronic pain score as well as depression, anxiety and Although jaw joint pain is not a particularly serious disease, it affects our eating function and quality of life at all times. Therefore it is important to actively seek diagnosis and treatment at a regular hospital to improve your quality of life!