Objective To investigate the influence of differentwater-improving defluoridation projects and different water-improving years on children's dental fluorosis,and toprovide a scientific basis for further defluorida...Objective To investigate the influence of differentwater-improving defluoridation projects and different water-improving years on children's dental fluorosis,and toprovide a scientific basis for further defluoridation ofdrinking water. Methods Totally one fourth of endemicfluorosis villages in all agricultural-related areas of Tianjinwere selected by random sampling method from 2016to 2017. The situation of water-improving defluoridationproject was investigated in these villages. The ways ofwater improvement included municipal water supply,double pipe network,barreled water,low fluorine welland centralized water supply.展开更多
文摘Objective To investigate the influence of differentwater-improving defluoridation projects and different water-improving years on children's dental fluorosis,and toprovide a scientific basis for further defluoridation ofdrinking water. Methods Totally one fourth of endemicfluorosis villages in all agricultural-related areas of Tianjinwere selected by random sampling method from 2016to 2017. The situation of water-improving defluoridationproject was investigated in these villages. The ways ofwater improvement included municipal water supply,double pipe network,barreled water,low fluorine welland centralized water supply.
