Cortes D F, Ellwood R P, O'Mullane D M, Bastos J R
Dental Health Unit, Manchester, England.
J Public Health Dent. 1996 Summer;56(4):226-8. doi: 10.1111/j.1752-7325.1996.tb02441.x.
The main aim of this study was to consider the association between water fluoride levels and caries prevalence in three Brazilian populations.
A total of 457 6-12-year-old lifetime residents from three economically deprived groups with 2-3, 0.7, and less than 0.01 ppm F in their water supplies were examined. Dental caries was recorded on permanent upper central incisors and first molars and all primary teeth (dmft).
There was a significant trend (P < 01) for the mean dmft to decrease with increasing levels of fluoride in the drinking water. Caries experience in the six permanent teeth was significantly lower (P < 01) in the area with 0.7 ppm F than in the other two groups For the 2-3 ppm F group significantly more caries was found in subjects with higher TF scores (P < 05).
Optimization of fluoride levels in the drinking water remains a valuable dental public health measure in Brazil.
本研究的主要目的是探讨巴西三个群体的水氟含量与龋齿患病率之间的关联。
对来自三个经济贫困群体的457名6至12岁常住居民进行了检查，这些群体的供水氟含量分别为2 - 3 ppm、0.7 ppm和低于0.01 ppm。记录了恒上中切牙、第一恒磨牙以及所有乳牙的龋病情况（dmft）。
随着饮用水中氟含量的增加，平均dmft有显著下降趋势（P < 0.01）。氟含量为0.7 ppm地区的六颗恒牙的龋病发生率显著低于其他两组（P < 0.01）。对于氟含量为2 - 3 ppm的组，TF评分较高的受试者患龋更多（P < 0.05）。
在巴西，优化饮用水中的氟含量仍然是一项有价值的口腔公共卫生措施。
