Nasir H I, Retief D H, Jamison H C
Community Dent Oral Epidemiol. 1985 Apr;13(2):65-7. doi: 10.1111/j.1600-0528.1985.tb01677.x.
The relationship between dental caries experience (DMFT) and enamel fluoride concentration (EnF) was determined in 100 freshman dental students aged between 20 and 26 yr. DMFT was determined by clinical examination and supplemented by bitewing radiographs. Biopsies were performed on the maxillary right canine of each student by etching with 1 M perchloric acid for 5 s. A regression analysis of DMFT and EnF and of square root DMFT and 1nEnF indicated that the correlation coefficients were not significant. Students exposed to fluoridated drinking water had significantly lower DMFT and significantly greater EnF than the students reared in areas with non-fluoridated drinking water.
对100名年龄在20至26岁之间的牙科专业大一学生，测定了龋齿经验（DMFT）与牙釉质氟浓度（EnF）之间的关系。通过临床检查确定DMFT，并辅以咬合翼片X线片。对每位学生的右上颌尖牙进行活检，用1M高氯酸蚀刻5秒。对DMFT与EnF以及DMFT平方根与lnEnF进行回归分析，结果表明相关系数不显著。饮用含氟水的学生的DMFT显著低于饮用非含氟水地区的学生，而EnF则显著更高。
