Gräf W, Beimler H J
Zentralbl Bakteriol B. 1979;169(5-6):409-26.
The incidence of caries in terms of the so-called DFS (= Decayed filled surfaces) index was ascertained for test persons aged from 6 to 15 years, in a community with a drinking water supply having a naturally increased fluoride content (Falkenberg/Oberpfalz, 1.8 ppm F') in comparison with test persons from a neighbouring community with a drinking water supply having a low-fluoride content (Fuchsmühl/Oberpfalz, 0.05 ppm F'). In 103 persons tested (corresponding to 7,577 dental surfaces surveyed) from Falkenberg, the DES index was 5.3, in 123 test persons (corresponding to 10,473 dental surfaces surveyed) from Fuchsmühl the DFS index was 12.4, which means that the naturally increased fluoride content of the drinking water caused caries to drop by 58 per cent viv-à-vis the reference group. No appreciable differences were found to exist in the eruption times of the permanent teeth in both groups of test persons, i. e. fluoride in drinking water does not appear to delay the eruption of teeth. The incidence of fluoride-induced enamel hypoplasia as determined by Kunz on the same test persons, resulted in a distinct increase of 74 per cent for the "fluoride group" vis-à-vis the reference group with a 33 per cent increase only.
针对6至15岁的测试对象，在一个饮用水中氟含量自然增加（法尔肯贝格/上普法尔茨，1.8 ppm F'）的社区，与来自邻近社区饮用水中氟含量较低（富克斯米尔/上普法尔茨，0.05 ppm F'）的测试对象相比，以所谓的DFS（=龋补牙面）指数确定龋齿发病率。在来自法尔肯贝格的103名测试对象（相当于7577个被检查的牙面）中，DFS指数为5.3；在来自富克斯米尔的123名测试对象（相当于10473个被检查的牙面）中，DFS指数为12.4，这意味着饮用水中自然增加的氟含量使龋齿发病率相对于参照组下降了58%。在两组测试对象的恒牙萌出时间上未发现明显差异，即饮用水中的氟似乎不会延迟牙齿萌出。Kunz对相同测试对象确定的氟斑牙发病率，“氟组”相对于参照组显著增加了74%，而参照组仅增加了33%。
