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
目的：研究氧化亚氮（N2 O）镇静在儿童牙科畏惧症（DF）患者治疗中应用的效果并探讨 N2 O 镇静的应用浓度。方法：对66例患儿应用 N2 O 进行镇静，观察不同浓度 N2 O 应用前后的心率（HR）和氧饱和度（SpO2）变化，分别采用 RamSay镇...目的：研究氧化亚氮（N2 O）镇静在儿童牙科畏惧症（DF）患者治疗中应用的效果并探讨 N2 O 镇静的应用浓度。方法：对66例患儿应用 N2 O 进行镇静，观察不同浓度 N2 O 应用前后的心率（HR）和氧饱和度（SpO2）变化，分别采用 RamSay镇静评分和 Houpt 行为量表评分对镇静治疗浓度进行评价。结果：患儿镇静显效所需 N2 O 最低浓度为25％～70％（49．6％±12．1％）；最大耐受浓度为35％～70％（56．4％±10．1％）。N2 O 产生的 Ramsay 镇静评分最大值为（2．3±0．6），患儿在治疗过程中均对医生的口头指令有所响应。患儿吸入 N2 O/O2混合气体后前后 HR（次/min）分别为（89．0±15．8）和（83．4±12．1）（P ＜0．05），Houpt 行为量表评分分别为（1．2±0．6）和（4．4±1．1）（P ＜0．01），能更好地配合治疗，SpO2分别为（98．4±0．9）％和（99．1±0．9）％（P ＞0．05）。结论：25％～70％的 N2 O 用于儿童牙科畏惧是安全有效的。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.
