摘要
本文将不同饮水含氟量划分为四组,探讨水氟浓度对儿童氟斑牙和龋齿患病率的作用和影响。结果表明,饮水含氟量在0.15～1.0mg/L的非病区,龋齿患病率低于全国城乡患病率水平;不同水氟含量的氟斑牙患病率间有非常显著差异(P<0.01);龋齿患病率受不同水氟含量影响而波动的幅度明显小于氟斑牙,当水氟含量超过2.0mg/L时,龋齿患病率下降已不明显。在氟斑牙儿童中有10.03%的人兼龋患,随着水氟含量上升,中病区兼龋患率反而高于轻病区兼龋患率,表明氟斑牙的病理改变与龋齿发生的致病条件具有一定关联。
This paper describes a study which divided the different contents of fluorine of drinking water into four groups,and probed the function and influence of water fluorine density on children's mottled teeth and dental caries rates. The results show that Chaoyang City belongs to non-pathogenica area where the content of water fluorine is from 0.15—1.0ml/L,and that the incidence rate of dental caries in Chaoyang is much lower than that of any other city and countryside area in China. It is very obvious that different contents of water fluorine lead to different disease rates of mottling(P<0.01). The disease rate of dental caries is both influenced and regulated by different contents of water fluorine,but its extent is much lower than that of teeth mottling. When the content of water fluorine exceeds 2.0mg/L,the incidence rate of dental caries will not be reduced significantly. Of the children with mottled teeth. 10.03 percent of them had dental caries also. With increasing of the content of water fluorine,the incidence of dental canles in the middle pathogenica is much higher than that in the light pathogenica area, which indicates that the pathological change of mottled teeth must be related to the disease condition of dental caries.
出处
《现代预防医学》
CAS
1996年第1期58-60,共3页
Modern Preventive Medicine
关键词
饮水
含氟量
氟斑牙
龋齿
drinking water fluorine content
mottled teeth
dental caries
