【摘要】 目的 了解错畸形的发病情况和构成特点。为临床诊断和治疗提供参考。方法 收集东西湖区人民医院口腔科近6年来收治的错畸形患者490例，对全部病例进行发病情况和构成特点分析。结果 安氏Ⅰ类49.8%，安氏Ⅱ类39.4%，安氏Ⅲ类10.8%。乳牙期1%，替牙期9.4%，恒牙期89.6%。结论 通过该临床资料的分析，要求正畸治疗的错畸形患者以安氏Ⅰ类和安氏Ⅱ类为主，牙龄构成以恒牙期为主。

    【关键词】 错畸形；Angle’s分类法

    【Abstract】 Objective To understand the general situation and constituent ratio of malocclusion types and provide some direction for the clinical diagnosis and treatment.Methods All the clinical data of 490 cases with malocclusion types from Apr 1996 to Apr 2004 in the Department of Stomatology of Wuhan Dongxihu people’s hospital were collected.The clinical data and constituent ratio of the cases were analyzed.Results The proportion of 490 cases malocclusion was respectively 49.8% (Angle’s Ⅰ) ......