饮水氟化预防龋齿及其在中国的实践

龋齿目前已成为严重危害我国人民健康的口腔疾病。国内外大量研究与观察证明饮水氟化是最安全、投入产出比最佳的预防龋齿的公共卫生措施。在广州，1965年开始进行饮水加氟试点，龋病发病率曾降低约50％，停止加氟后，龋病发病率再次上升。目前广州已成为全国龋病病情最为严重的城市。考虑到随着人民生活水平的提高，食品中的糖增加而粗纤维减少；随着经济的发展，水资源严重不足，城市供水正由以含氟较高的地下水为主转为以含氟较低的地面水为主，这种趋势将使我国龋病问题日益严重。在牙医严重不足，公众缺乏口腔卫生、牙齿保健知识的情况下，饮水加氟是最安全、有效、经济的防治措施。推广饮水加氟的工作，应当在科学研究和公众参与下，积极稳妥地进行。

DENTAL CARIES AND FLUORIDATION OF DRINKING WATER IN CHINA

The most serious dental disease in China for the time being is dental caries. Many studies and observations have demonstrated that drinking water fluoridation is the safest and the most economical public healthy measure. When it was first undertaken in Guangzhou City in 1965, the dental caries incidence of the city reduced 50%, but it rose soon after this measure was canceled. Now, Guangzhou has turned into a city with most serious problems of dental caries in China. The improvement of living conditions causes more sugar and less coarse-fiber in foodstuff, and rapid economic development makes water resources become seriously deficient. With water supply in cities transforming from underground water with high-level fluorine into surface water with low-level fluorine, the public dental health will turn from bad to worse. In the nation with absence of dentist and public dental health care, drinking water fluoridation is considered as the safest and most efficient and economical measure and should be extended vigorously and steadily with scientific research and the participation of the public.