Common causes of mandibular joint disorder include bad chewing habit, trauma, mental stress, etc. It needs to be treated according to the cause, and the treatment modalities include general, physical therapy, medication, etc. 1. Bad chewing habit: always chewing on one side, different degree of wear and tear of mandibular joints, jaw movement disorder, etc., leading to mandibular joint disorder. At this time, you need to change the habit of chewing, not to chew on one side. 2. Trauma: Trauma can damage the mandibular joints, and fracture of the mandibular joints can also occur misaligned bite, resulting in disorders of the mandible. If it is painful, non-steroidal anti-inflammatory drugs such as aspirin and ibuprofen can be used. 3. Mental stress: Tension, worry and other kinds of mental stress may cause people to grind their teeth, clench their teeth and so on, which will make the chewing muscles tighten for a long time causing jaw joint disorder and so on. At this time, you need to relieve the mood, so that the state of tension to relax, you can do physical therapy or sports, exercise, etc., the jaw joints of hot packs, etc.. There may be other reasons for jaw joint disorder, such as rheumatoid arthritis, etc. It is recommended to go to the hospital in time to find out the cause of the disease and give the corresponding treatment and treatment. The above medications should be used under the guidance of a doctor.