颞颌关节前脱位后,有的由于脱位时间长,咀嚼肌严重痉挛,关节局部水肿、疼痛,或因患者精神紧张,不能与医生配合,一般手法复位常致困难。笔者用力学杠杆原理对手法复位进行了改进,取得满意疗效。其方法及原理如下。以双侧脱位为例,用竹筷制取两根竹撑,长度大约等于患者大张口时的颌间距,一般为1.5cm～2cm,两头稍凸,消毒后备用。患者头部紧靠椅枕或墙壁。术者 Temporomandibular joint anterior dislocation, and some due to dislocation for a long time, severe masticatory muscle spasm, joint local edema, pain, or because of mental stress, can not cooperate with the doctor, the general approach to reset often cause difficulties. The author of the lever principle of mechanics to reset the hand was improved and achieved satisfactory results. The method and principle are as follows. To bilateral dislocation, for example, with bamboo chopsticks made of two bamboo stays, the length is about equal to the patient when the mouth widened jaw distance, usually 1.5cm ~ 2cm, slightly convex two, after disinfection reserve. Patient's head against chair or wall. Surgeon