Temporomandibular joint dislocation mostly occurs when the mouth is wide open, mainly due to the condyle protruding from the joint fossa and completely detaching, and after dislocation, if the effect of manual repositioning is not good, then general anesthesia is needed for surgical repositioning. After resetting, the jaw should be fixed with a bandage and the open mouth activity should be restricted for about two weeks to avoid wide open mouth. If the patient is too tense to cooperate during the reset, local massage of the occlusal muscles or the use of local anesthetics to close the surrounding joints can help reset the dislocation. In the case of recurrent dislocation, if the prognosis is not good after manual reset, arthrosclerosis treatment or joint surgery can be performed, which can effectively solve the dislocation problem. Regular review is required during the sclerotherapy procedure to avoid excessive fixation affecting recovery. Once a TMJ dislocation occurs, it is necessary to consult a doctor in a timely manner, to cooperate closely with the doctor during the manipulation and to avoid opening the mouth widely after the restoration to prevent the TMJ from dislocating again and forming a recurrent dislocation.