摘要:
了解宁夏南部山区6~12岁回、汉族学生患龋状况,为有效开展龋病防治提供参考.方法 采用分层整群随机抽样方法,抽取宁夏南部山区6个区县12所小学2 907名6~ 12岁小学生进行龋病流行病学调查.结果 6~12岁学生总患龋率为60.7%,龋均为(1.76±2.08),龋齿充填构成比为1.6%;第一恒磨牙患龋率为26.8%,龋均为(0.45±0.86),龋齿充填构成比为2.4%,窝沟封闭率为6.7%;乳牙患龋率为47.0%,龋均为(1.31±1.87),龋齿充填构成比为1.3%.以上各指标不同民族、年龄、地区间差异均有统计学意义(P值均<0.01),城乡、性别之间差异均无统计学意义(P值均>0.05).城市学生第一恒磨牙窝沟封闭率为10.2%,乡镇学校的窝沟封闭率为0.结论 宁夏南部山区6~12岁回、汉族学生患龋率较高,龋齿充填构成比、窝沟封闭率较低,应加强综合干预防龋措施.
关键词:
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龋齿 /
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患病率 /
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学生 /
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少数民族 /
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农村人口
Abstract:
Objective To investigate dental caries among 6-to 12-year-old Hui and Han students in Ningxia southern mountainous area.Methods Dental caries was assessed among 2 907 students aged from 6 to 12 years from 12 primary schools of Ningxia southern mountainous area by using the stratified,cluster sampling.Results The prevalence rate of caries was 60.7%,and the DMFT/dmft was(1.76±2.08).The filled rate of the total caries was 2.7%;prevalence rate of the first molars caries was 26.8% and the DMFT was(0.45±0.86).The filled rate of the caries was 2.4% in the first molars,and the rate of pit and fissure was 6.7%;the prevalence rate of deciduous tooth caries was 47% and the dmft was(1.31±1.87),and the filled rate of the caries was 1.3% in deciduous tooth.There were significant difference on caries status between nationality and age and region(P<0.01),but no significant difference between gender(P>0.05).The rate of pit and fissure in the first permanent molar was 10.2% among students in the urban school,while no students with was found having dental sealant in the rural school.Conclusion Dental caries among 6-to 12-year-old Hui and Han students in Ningxia southern mountainous area was high.Rate of fissure sealants on permanent first molars is still low,especially in rural area.
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