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龋病(dental caries or tooth decay)是在以细菌为主的多种因素影响下,牙体硬组织发生的慢性进行性破坏的一种疾病[1],是口腔常见病、多发病。儿童乳牙因为多种原因,患病率更是居高不下。2005年全国第三次口腔健康流行病学调查显示:5岁儿童乳牙龋病患病率为66%,龋均为3.5,未治疗率为97.1%[2]。为了解贵州省黔东南州苗、侗族5岁儿童乳牙龋病患病情况,本课题组对贵州省黔东南苗、
Dental caries or tooth decay is a disease of chronic progressive destruction of hard tissue of the tooth under the influence of various bacteria, which is a common disease of the oral cavity. Children deciduous teeth for a variety of reasons, the prevalence is even higher. The third national oral health epidemiological survey in 2005 showed that the prevalence of deciduous dental caries in children aged 5 years was 66%, caries was 3.5 and the untreated rate was 97.1% [2]. In order to understand the prevalence of deciduous dental caries in Miao and Dong 5-year-olds in Guizhou Southeast Guizhou Province,