METHODS The present conditions of using water in fluorosis areas and dental fluorosis of children prevalence have been carried out by epidemiological methods.
方法采用流行病学方法调查分析改水后氟病区居民饮水现状和儿童氟斑牙患病情况。
Conclusion: The using of fluoridated toothpaste increased the fluoride intake in the children in defluoridated areas, which caused the increasing of prevalence of dental fluorosis.
结论：改水降氟区儿童使用含氟牙膏增加了儿童的摄氟量，会引起儿童氟斑牙患病率的增加。
The prevalence of dental fluorosis of the children drinking low fluorine water was no difference no matter whether using fluoride dentifrice or not.
饮用低氟水的儿童无论是否使用含氟牙膏，其氟斑牙患病率间没有差别。
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