When you open your mouth, your cheek bones may be ringing, such as anterior displacement of the joint disk, strangulation of the joint disk, anterior displacement of the joint disk of the irreversible joint, and so on, and one part of the patients can be cured by themselves. 1. Reproducible anterior displacement of the joint disk: if there is only a popping sound, no pain and opening obstacles, further treatment may not be necessary. Some patients may be able to heal themselves by correcting bad biting habits or necessary functional training. 2. Articular disk strangulation: the main treatment is therapeutic education and follow-up. Most of the patients’ symptoms do not progress, and some of the “stuck” symptoms can disappear, or may be self-healing. 3. Irreducible anterior displacement of the joint disk: If there are symptoms of restricted opening and pain, it is still necessary to actively receive treatment. It is advisable to consult a specialized doctor.