Some patients always find it difficult to open their mouths and painful to chew when eating or speaking. After examination by the doctor, the diagnosis is temporomandibular joint dysfunction syndrome. This disease is a common disease in dentistry clinic, mostly occurs in young adults aged 20 to 40 years old, and its causes are many, some patients have a mandibular joint blow injury before the onset of the disease, trauma when chewing, yawning opening too large and cold stimulation; some patients also have bad chewing habits; then there are those who love to clench their teeth or like to eat hard food when working under tension and grinding their teeth at night. All these disrupt the balance relationship between the tissues in the joint. Temporomandibular joint disorder syndrome mainly manifests as soreness and pain in the temporomandibular joint area (often closely related to jaw movement, chewing and speaking), popping sound when moving (especially when opening mouth), as well as restricted mouth opening and weakness in chewing. In severe cases, patients can only open their mouths a little bit and cannot eat solid food, but only some liquid food. A few patients also have dizziness, tinnitus and hearing impairment. Most of them have joint dysfunction and good prognosis. There are many ways to treat this disease, the specific treatment measures are: 1, correction of the occlusal relationship by the dental specialist examination and treatment. 2, acupuncture therapy, the main point: the lower Guan, hearing Palace, cataract, cheek car, supporting points: hegu, sun. 3, closure therapy available dexamethasone 5 mg plus 2% lidocaine 1 ml for local closure. 4.Ultra-short wave, God’s lamp and other local physiotherapy. 5.Oral Chinese medicine, such as Shujian and Blood Tablet, Xiaohuoluo Pill, Dahuoluo Pill. While treating, correct bad habits (such as unilateral chewing) and prevent over-opening of the mouth, etc. Life precautions: (1) Diet is not restricted in principle, but avoid biting and chewing raw, cold and hard food. (2) Eliminate mental tension and maintain an optimistic, relaxed and open-minded mental state. Pay attention to the combination of work and rest, and actively participate in cultural and sports activities. (3) Do not get into the habit of clenching your teeth when working under tension. (4) Do not open your mouth wide, and pay attention to protecting the jaw joint when yawning. (5) Pay attention to the cold and warmth of the face in winter.