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《Journal of Public Health and Preventive Medicine》 2018-03
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Current situation of children dental fluorosis and health risk assessment of water fluoride in Tianjin

LIU Zhonghui;WANG Yang;LI Wenfeng;CUI Yushan;HOU Changchun;Tianjin Center for Disease Control and Prevention;  
Objective To investigate the current situation of children dental fluorosis,assess the health risk of water fluoride,and to provide scientific basis for prevention of drinking water endemic fluorosis. Methods Children dental fluorosis and water fluoride were investigated in 1/3 villages and towns in Tianjin all rural area. Dental fluorosis for children aged 8 to 12 years was checked by Diagnosis of dental fluorosis( WS/T 208-2011). Fluoride ion selective electrode method was used for water fluoride content. Health risk assessment was performed based on the method recommended by USEPA. Results A total of 1 250 villages with drinking water endemic fluorosis and 64 671 children aged 8 to 12 were investigated. The prevalence rate of dental fluorosis was 39. 27%. The lowest prevalence rate of dental fluorosis was in XQ District( 8. 70%),while that in BC district highest( 76. 35%). Dental fluorosis rate increased with the increase of water fluoride. The annual health risk of fluoride was different in different regions. The lowest fluoride annual health risk was in JN District( 0. 58 × 10~(-9)/a),while that in JH district highest( 12. 64 × 10~(-9)/a). The fluoride annual health risk of ground water was higher than that of river water and barreled water. The average annual health risk of fluorine in children was higher than that of adults. Conclusion Defluoridation prevention of fluorosis is quite effective in Tianjin. The annual health risk of water fluoride is generally low. However some areas are still affected by high drinking water fluoride.
【Fund】: 天津市疾病预防控制中心科技基金(CDCKY1501)
【CateGory Index】: R788
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