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目的 了解地方性氟中毒病区改水降氟对中、小学生龋患影响。方法 对奎屯氟中毒改水区 2 0 2 8名中、小学生进行口腔检查 ,记录其龋病情况 ,并与同区改水前、沿海城市及全国学生龋病流行病学最新报告对照。结果 改水后中、小学生患龋率较改水前略有升高 ,与对照区患龋率无差别 ,改水区中、小学生患龋率低于沿海及全国水平。结论 高氟区饮用水降氟不会直接引起患龋率升高 ,新疆奎屯改水区中、小学生患龋率处于全国较低水平
Objective To understand the effects of water and fluoride on the caries in primary and secondary school students in endemic fluorosis area. Methods A total of 2088 primary and secondary school students in Kuitun fluorosis area were enrolled in this study. Their dental caries status were recorded and compared with the latest report of epidemiology of caries in coastal cities and the whole country. Results After the water was changed, the prevalence of caries in primary and secondary school students increased slightly compared with that before water change. There was no difference between caries prevalence and control school. The prevalence of caries was lower in primary and secondary school students than in coastal and national level. Conclusion The fluoride content of drinking water in high fluoride area will not directly cause the increase of caries prevalence rate. The caries prevalence rate of primary and middle school students in Kuitun water area of Xinjiang is lower than the national level