北海市学龄前儿童龋齿病因调查分析

目的了解本地区学龄前儿童乳牙龋病流行情况,以指导今后的乳牙龋病防治工作。方法对900名学龄前儿童按标准统一进行口腔检查和口腔卫生调查。结果被调查者乳牙患龋率为32%。口腔卫生良好者患龋率明显低于口腔卫生差者（P〈0.05）。结论学龄前儿童乳牙龋病的病因调查,对提高儿童的口腔健康防治有很大的指导意义。

The cause of decayed tooth in deciduous teeth among pre-school children in Beihai

Objective To investigate the caries prevalence of deciduous among pre-school children in Beihai City in order to guide the prevention and cure of the caries of deciduous teeth.Methods Oral examination,disclosing agents were conducted according to the same standard among 900 extra-child in school age.Results The caries prevalence rate of deciduous teeth was32%among the examined children The caries prevalence rate among children who had good oral hygiene was significantly lower than that among children who had bad oral hygiene.Conclusion The investigation of the cause of the disease among pre-school child who have decayed tooth,is very meaningful to enhance child’s oral cavity health preventing and controlling.