Wakizaka H, Ueda I, Miura H, Ito N, Niwa M, Saito E, Ohnishi M, Igarashi S
Higashi Nihon Shigaku Zasshi. 1989 Jun;8(1):29-37.
The purpose of this study was to survey the changes in dental caries prevalence in 3-, 4-, and 5-year-old nursery school children in Shinshinotsu for 3 years from 1986 to 1988. The results obtained were as follows: 1) The caries prevalence in 5-year-old Shinshinotsu children decreased from 1986, and was 87.5% in 1988, lower than the national survey in 1987. On the other hand, the number of df teeth per person and the incidence of type C caries increased in 5-year-old Shinshinotsu children. 2) The caries prevalence rate in 3-year-old Shinshinotsu children was 89.5% in 1988, rather higher than the national survey in 1987.
本研究的目的是调查1986年至1988年的3年间，新城市3、4、5岁幼儿园儿童龋齿患病率的变化情况。得到的结果如下：1）新城市5岁儿童的龋齿患病率自1986年起呈下降趋势，1988年为87.5%，低于1987年的全国调查结果。另一方面，新城市5岁儿童的人均龋失补牙数及C型龋发病率有所上升。2）1988年新城市3岁儿童的龋齿患病率为89.5%，略高于1987年的全国调查结果。
