McInnes P M, Vieira E
Community Dent Oral Epidemiol. 1979 Jun;7(3):170-3. doi: 10.1111/j.1600-0528.1979.tb01209.x.
The purpose of this study was to determine the dental health status of a representative sample of Johannesburg Chinese schoolchildren, all 250 attending the only Chinese school in the city. In 18 preschoolchildren, 3--5 years old, 16.7% were caries-free, mean dmft was 7.1 +/- 5.8 and labial caries was present in 33.3%. In 165 primary schoolchildren aged 5--16 years, the mean dmft was 590 +/- 3.2 with 20% of the primary dentition caries-free and the mean DMFT was 2.4 +/- 1.9 4.8% of the primary schoolchildren were caries-free. In 67 high school pupils of 11--17 years, 4.5% were caries-free and the mean DMFT score was 7.1 +/- 3.9. Caries prevalences among the Chinese were similar to corresponding groups of children of Chinese immigrants in the United Kingdom and Malaysia.
本研究的目的是确定约翰内斯堡华人学童代表性样本的口腔健康状况，该市唯一的华人学校的所有250名学童参与其中。在18名3至5岁的学龄前儿童中，16.7%无龋齿，平均龋失补牙数（dmft）为7.1±5.8，33.3%有唇面龋。在165名5至16岁的小学生中，平均dmft为5.90±3.2，20%的乳牙列无龋齿，平均恒牙龋失补牙数（DMFT）为2.4±1.9，4.8%的小学生无龋齿。在67名11至17岁的高中生中，4.5%无龋齿，平均DMFT评分为7.1±3.9。华人中的龋齿患病率与英国和马来西亚的华裔移民儿童相应群体相似。
