为了解我区小学生牙齿发育状况，为适时开展错份畸形的矫治工作，我们组织了专业队伍开展了调查。1对象和方法1.1以我区26所小学12所幼儿园7～12岁16740名儿童少年为对象，其中男性8567名，女性8173名。1．2普查前，首先对51名口腔科医师进行培训，统一标准和要求，并在一所小 In order to understand the dental development of pupils in our district, we organized a team of professionals to carry out the investigation in order to timely carry out the correction of the wrong-degree deformities. 1 Subjects and methods 1.1 To 26 primary schools in our district 12 kindergartens 7 to 12 years old 16,740 children and adolescents as the object, of which 8567 were males and 8,173 females. 1.2 Before the census, the first 51 stomatologists were trained, unified standards and requirements, and in a small