Saúde Coletiva, Faculdade Presidente Antonio Carlos. 508 norte, Alameda 5 Lote 2, QI4. 77006-658 Palmas TO Brasil.
Universidade Federal do Tocantins. Palmas TO Brasil.
Cien Saude Colet. 2020 Mar;25(4):1507-1518. doi: 10.1590/1413-81232020254.17722018. Epub 2018 Aug 17.
Water fluoridation is a strategy for caries control recommended by the WHO. In Brazil, it is regulated by law but this program has not been successfully implemented in the North region. This research aimed to collect data on the existence of external control (heterocontrol) in the ten largest municipalities in the state of Tocantins, Brazil, and to analyze fluoride concentration in the public water supply of these cities. The study was conducted from May-August/17, and its theoretical-methodological framework was a quantitative, descriptive and cross-sectional analysis. Water collections were carried out monthly, using sampling protocol of water collection of the network. Fluoride concentration in the waters was determined with ion specific electrode by the direct technique. It was verified that water fluoridation monitoring is only been done in Palmas, capital of the state, starting in 2016. Thirty-two percent of waters samples analyzed showed fluoride concentration to obtain the maximum benefit of reduction caries and 27.5% of them presented a high or very high risk of dental fluorosis. It is necessary to implement a program to control the concentration of fluoride in the water of the municipalities of Tocantins, in order to ensure that the population is not deprived of the anticaries' benefits of the adjustment of fluoride concentration of the treated water.
水氟化是世界卫生组织推荐的龋齿控制策略。在巴西，它受到法律的监管，但该计划在北部地区并未成功实施。本研究旨在收集巴西托坎廷斯州 10 个最大城市存在外部控制（异控）的数据，并分析这些城市公共供水的氟化物浓度。该研究于 2017 年 5 月至 8 月进行，其理论方法框架是定量、描述性和横断面分析。每月进行一次水样采集，使用网络水样采集的采样方案进行。使用离子选择性电极通过直接技术测定水中的氟化物浓度。结果表明，只有托坎廷斯州首府帕尔马斯自 2016 年起才开始进行水氟化监测。32%的水样分析显示氟化物浓度可获得最大的龋齿减少益处，而 27.5%的水样分析显示存在牙齿氟中毒的高或极高风险。有必要在托坎廷斯州市镇实施控制水氟化物浓度的计划，以确保民众不会因处理水的氟化物浓度调整而失去防龋益处。
