为了了解本市青少年的错情况 ,以便于口腔科正畸医师明确治疗目标 ,作者对本市某小学学生进行了恒牙列错调查 ,现将结果报告如下。1　对象和标准1999- 12 ,作者对呼和浩特市某小学的 90 2名学生进行了恒牙列错调查 ,其中男性 46 2名 ,女性 44 0名 ,年龄11～ 13岁 ,检查采 In order to understand the wrong situation of young people in the city in order to make it clear to the oral orthodontic physicians, the author conducted a survey of primary dentition students in this city. The results are reported as follows. 1 Subjects and Standards 1999-12, the author of a primary school in Hohhot, 902 students conducted a survey of permanent malformations, including 462 males, 440 females, aged 11 to 13 years old,