乌鲁木齐市中小学生第一恒磨牙患龋情况调查分析

目的：了解新疆乌鲁木齐市中小学生第一恒磨牙患龋情况,为防治对策提供依据.方法： 采用分层整群随机抽样的方法,对乌鲁木齐市7所中小学校,年龄在7～15岁的3 005名不同民族的学生行第一恒磨牙龋病患病率的调查.结果： 第一恒磨牙总患龋率为13.58%,总体龋均为2.07.随着年龄的增长,第一恒磨牙患龋率有明显升高趋势（P＜0.01）;男性患龋率（10.70%）明显低于女性（16.72%）,差异有统计学意义（P＜0.01）;汉、维吾尔、哈萨克和回族第一恒磨牙的患龋率分别为16.95%、10.07% 、9.80% 和19.58%,差异有统计学意义（P＜0.01）.龋失补牙数为844颗,其中龋齿数随年龄增长呈增加趋势.结论： 乌鲁木齐市中小学生（儿童少年）第一恒磨牙的患龋率较高,患龋程度严重,应加强对第一恒磨牙龋病的预防和治疗.

A survey analysis of caries about the first permanent molars of students in elementary school and middle school in Urumqi

Objective: To investigate the prevalence and current status of caries about the first permanent molars of students in primary schools and middle schools of Urumqi. Methods: Using the stratified and cluster random sampling, 3 005 students aged 7 to15 were examined about the caries epidemic status of the first permanent molars. Results: The overall caries prevalence of the first permanent molars was 13.58%. The average decayed-missing-filled teeth (DMFT) in everyone were 2.07. The caries rate increased rapidly with aging from 7 to 12 (P<0.01). The caries prevalence of girls (16.72%) was significantly higher than that of boys (10.70%), and there was statistically significant difference (P<0.01). The differences were also shown among ethnics, respectively being 16.95%, 10.07%, 9.80% and 19.58% in Han, Uigur, Kazak and Hui people (P<0.01). Conclusions: The caries prevalence of the first permanent molars in students of primary and middle school students was high and severe in Urumqi. Some concrete measures should be taken to stop the progress of caries and decrease the occurrence of caries.