Temporomandibular dislocation is a dislocation of the condyle of the mandible that slips out of the joint socket and does not reset itself. It can occur unilaterally or bilaterally. If the dislocation occurs within two weeks, it is called acute dislocation; if it occurs more than two weeks, it is called old dislocation; if it occurs repeatedly, it is called habitual dislocation. A previous scientific article introduced the causes of TMJ dislocation, and now let’s talk about the treatment. Acute joint dislocation, if not treated correctly and in a timely manner, can be complicated by injury to the joint disc, relaxation of the joint capsule and joint ligament tissue and lead to recurrent joint dislocation. The clinical manifestations of the patient are open mouth, unable to close the mouth, salivation, difficulty in eating and speaking, and the patient’s facial expression is extremely painful. The patient’s facial expression is painful. Examination reveals restricted jaw movement and anterior teeth are open and closed or anteriorly closed. X-ray shows that the condyle is located in front of the articular tuberosity. 1, acute temporomandibular joint dislocation: timely reset + restriction of jaw movement The most commonly used method is intraoral manual reset. Before resetting, massage the bilateral masticatory muscles by hand to relax the muscles. The patient sits on a bench with his head against the back wall and the occlusal surface of his mandibular teeth should be below the level of the doctor’s elbow joint. The physician stands in front of the patient with both thumbs wrapped in gauze to avoid biting. Then reach into the patient’s mouth and place it on the occlusal surface of the mandibular molar, with the remaining four fingers holding the lower edge of the mandible. When repositioning, both thumbs press down hard while the remaining four fingers hold the mandibular chin upward, so that the condyle located in front of the articular tuberosity moves below the level of the articular tuberosity, and then push backward and upward to send the condyle into the articular recess. If the dislocation is bilateral, one side can be reset first, and then the other side can be reset. When the condyle is reset and the normal occlusal relationship has been restored, fix the jaw with elastic bandage or ordinary bandage for 2 to 3 weeks to restrict jaw movement to avoid further dislocation. 2.Old dislocation: manual reset, if necessary, surgical reset under general anesthesia Old dislocation of the temporomandibular joint is mostly seen in old and frail patients. When the dislocation of her jaw occurred at the beginning, she visited several hospitals, but because of her poor health, the doctor was unable to reset her jaw successfully. She later found our hospital for consultation. We performed a manual reset under laughing gas, and although the TMJ had been dislocated for several months, it was reluctantly reset and fixed after the reset. 3. Recurrent (habitual) temporomandibular joint dislocation: conservative treatment + surgical treatment ① joint capsule sclerotherapy: extra-articular injection using sclerosing agents, such as sodium cod liver oil acid, to induce sclerosis of the joint capsule and its surrounding tissues, forming scar tissue and limiting joint movement; ② dermal flap grafting: using dermal tissue grafting to the joint capsule area to reinforce the flaccid joint capsule and reduce joint dislocation; ③ bite muscle exercise method. By exercising the occlusal muscles, the internal pterygoid muscles, and the ascending jaw muscles such as the temporalis muscle, thus counteracting the external pterygoid muscles and preventing them from pulling the condyle forward excessively. (iv) Titanium plate implantation: The ends of the TMJ are semi-fixed using titanium plates, thus limiting joint movement and reducing joint dislocation. Titanium plate implantation can severely restrict joint movement and may lead to joint ankylosis over time. (5) Articular tuberosity augmentation: The most definitive treatment for recurrent (habitual) TMJ dislocations, it involves augmenting the TMJ tuberosity using bone grafting to prevent the condyle from sliding excessively in front of the tuberosity. In conclusion, the treatment of habitual (recurrent) dislocation is still being explored and researched so far, each method has its advantages and disadvantages, and it is our common goal to strive for the least traumatic treatment so that the patient will not dislocate again.