Menghini G D, Steiner M, Marthaler T M, Bandi A
Klinik für Präventivzahnmedizin, Zentrum für Zahn-, Mund- und Kieferheilkunde, Universität Zürich.
Schweiz Monatsschr Zahnmed. 1995;105(4):467-73.
Between 1974 and 1976, fluoridated salt (250 ppm F) was introduced in the Swiss Canton of Glarus and has been used since by the bakeries and most households (domestic salt) in the Canton. Caries prevalence in schoolchildren of this Canton declined from 1974 to 1992 by 80 to 85%. As an example, 12-year-old children had 6.5 DMFT in 1974, but only 1.1 in 1992. In 1992, most DF sites were fissures and pits and most of them filled. Caries prevalence in primary teeth (dmft) decreased by 49 to 66% in the age groups 7, 8 and 9, and most of the reduction had occurred before 1983. In 1974, the average fluoride concentration in urine amounted to 0.36 ppm; between 1979 and 1992 it increased from 0.74 to 0.86 ppm. 46 to 60% of the bread samples contained between 3 to 9 ppm F; this bread had obviously been produced with fluoridated salt. Salt fluoridation contributed to caries decline until up to 1987, while subsequent caries reductions in permanent teeth must have been caused by other factors. In comparison to other Swiss data the caries prevalence of pupils in the Canton of Glarus was low in 1992.
1974年至1976年期间，瑞士格拉鲁斯州引入了含氟食盐（氟含量为250 ppm），此后该州的面包店和大多数家庭（家用食盐）一直在使用。1974年至1992年，该州学童的龋齿患病率下降了80%至85%。例如，1974年12岁儿童的恒牙龋失补牙数（DMFT）为6.5，而1992年仅为1.1。1992年，大多数龋齿部位是窝沟，其中大部分已填充。7岁、8岁和9岁年龄组的乳牙龋患率（dmft）下降了49%至66%，且大部分下降发生在1983年之前。1974年，尿氟平均浓度为0.36 ppm；1979年至1992年期间，该浓度从0.74 ppm增至0.86 ppm。46%至60%的面包样本含氟量在3至9 ppm之间；这些面包显然是用含氟食盐制作的。直到1987年，食盐加氟都有助于龋齿患病率的下降，而恒牙随后的龋齿患病率下降肯定是由其他因素导致的。与瑞士其他数据相比，1992年格拉鲁斯州学生的龋齿患病率较低。
