主诉症状中最为多见的是肌肉疲劳和关节杂音,而颞下颌关节痛、咀嚼肌痛和关节绞锁出现的频率较低。临床体征中下颌偏摆、咀嚼肌触痛以及关节杂音占前三位。表明主诉症状和临床体征最主要集中于咀嚼肌异常和关节杂音,下颌偏摆主要是咀嚼肌与关节不协调或功能障碍的表现。Ai和Di的分级有相关性,但Ai0级病例占总数的50%,Di0级病例只占总数32.95%,提示在临床上即使患者无主诉症状,也可能存在一定程度的功能异常,正畸医师对错患者的咀嚼肌和颞下颌关节的功能状况应给予足够的关注和重视。

作者单位：陈丹鹏,郭洁之,艾学民　上海市第一人民医院口腔科　200080
　　　　　孟　敏　昆明市妇幼保健医院口腔科

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