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在1991年4～5月全国第三次学生体质、健康监测中,我们对沈阳市2000名学生龋病情况进行分析。结果是城市学生患龋率为86.3%,龋均为3.74,乡村学生分别为37.5%和0.96。城乡有显著性差异。城市学生乳牙、恒牙患龋率,也显著地高于乡村。乳牙龋齿好发部位为Ⅴ和Ⅳ牙,恒牙龋好发部位为6牙和7牙,其中六龄牙龋齿占龋牙总数的60.4%,沈阳市城市学生患龋率高于全省各地市。城市龋补率高达84.7%,而乡村仅为4.9%。
In April ~ May 1991, the third national students' physique and health monitoring, we analyzed the dental caries of 2000 students in Shenyang City. The results showed that the prevalence of dental caries was 86.3% in urban students, 3.74 in dental caries, and 37.5% in rural students and 0.96% respectively. There are significant differences between urban and rural areas. Urban students deciduous teeth, permanent teeth caries rates, but also significantly higher than the rural areas. The predilection sites for deciduous teeth were Ⅴ and Ⅳ. The predominant sites for permanent teeth were 6 and 7 teeth, of which six teeth accounted for 60.4% of the total number of dental caries. The prevalence of dental caries among urban students in Shenyang was higher than that in other cities . Urban caries up to 84.7%, while only 4.9% in rural areas.