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我国是地方性氟中毒分布面积广、危害严重的国家之一。全国有24个省区有地方性氟中毒的存在。过量的氟化物进入体内并在机体内逐渐蓄积,造成了对牙齿的损害。因此,预防少儿氟斑牙成为学校卫生中一项极为重要的工作。1 资料来源 采取分层抽样,对居住地饮水含氟量0.2～1.0PPm以上,5～15岁的3000名儿童进行调查。
China is one of the countries where the distribution of endemic fluorosis is wide and serious. There are 24 provinces and autonomous regions have the existence of endemic fluorosis. Excessive fluoride into the body and gradually accumulate in the body, causing damage to the teeth. Therefore, the prevention of dental fluorosis in children has become an extremely important task in school health. 1 Data sources stratified sampling, living in drinking water fluoride content of 0.2 ~ 1.0PPm above, 5 to 15-year-old 3000 children were investigated.