Brunelle J A, Carlos J P
Epidemiology Branch, National Institute of Dental Research, National Institutes of Health, Bethesda, Maryland 20892.
J Dent Res. 1990 Feb;69 Spec No:723-7; discussion 820-3. doi: 10.1177/00220345900690S141.
The decline in dental caries in U.S. schoolchildren, first observed nationwide in 1979-1980, was confirmed further by a second national epidemiological survey completed in 1987. Mean DMFS scores in persons aged 5-17 years had decreased about 36% during the interval, and, in 1987, approximately 50% of children were caries-free in the permanent dentition. Children who had always been exposed to community water fluoridation had mean DMFS scores about 18% lower than those who had never lived in fluoridated communities. When some of the "background" effect of topical fluoride was controlled, this difference increased to 25%. The results suggest that water fluoridation has played a dominant role in the decline in caries and must continue to be a major prevention methodology.
美国学童龋齿率的下降首次在1979 - 1980年全国范围内被观察到，1987年完成的第二次全国性流行病学调查进一步证实了这一点。在这一时期，5 - 17岁人群的平均DMFS得分下降了约36%，并且在1987年，约50%的儿童恒牙无龋。一直饮用社区含氟水的儿童平均DMFS得分比从未生活在有氟社区的儿童低约18%。当局部用氟的一些“背景”效应得到控制时，这一差异增加到25%。结果表明，饮水加氟在龋齿率下降中发挥了主导作用，并且必须继续作为一种主要的预防方法。
