出于先天的或后天的原因,导致上下颌骨发育不协调,引起颌骨畸形,会出现明显的咬合异常。对于这样的患者,近牢来出于临床各科室的通力合作,在形态方面,已能得到充分的改善。但对机能方面的改善情况,只能通过询问患者和凭经验来判断。其改善的客观检查指标和效果,目前,还很少见报导。本文拟介绍作者目前进行的有关颌机能检查和颌机能改善的评价方法,即咀嚼效率、肌电图的变化和颌运动三个方面, For innate or acquired causes, lead to uncoordinated maxillary and mandibular development, causing jaw deformity, there will be obvious occlusion abnormalities. For such patients, nearly come from clinical departments co-operation, in terms of morphology, has been fully improved. However, improvements in function can only be judged by asking the patient and by experience. Its objective indicators and the effectiveness of improved inspection, at present, is still rarely seen. This article intends to introduce the author currently conducted on the jaw function test and jaw performance evaluation to improve the method that chewing efficiency, EMG changes and jaw movement in three areas,