氟化钠滴剂预防儿童乳牙龋齿的2年临床效果评价

目的　研究氟化钠滴剂对儿童乳牙龋病的预防作用。方法　在成都市13所幼儿园3~4岁儿童中随机抽取1 200人,平均分为3组,每组400人。第1组(氟滴组)采用氟化钠滴剂点滴;第2组(含氟牙膏组)采用含氟牙膏刷牙;第3组(对照组)未采用任何统一干预措施。对这3组儿童进行2年的乳牙龋病预防评价。结果　氟滴组第1、2年的新增龋面均分别为1·35±0·57和1·85±0·57,含氟牙膏组第1、2年的新增龋面均分别为1·53±1·09和2·75±1·33,对照组第1、2年的新增龋面均分别为2·19±1·12和4·73±2·17。统计分析表明,氟滴组和含氟牙膏组的新增龋面均低于对照组,二者之间的差异有统计学意义;氟滴组和含氟牙膏组二者新增龋面均的差异无统计学意义。结论　氟化钠滴剂预防儿童乳牙龋齿的效果明显。

2-Year Clinic Effect of Fluoride Drop on Dental Caries Prevention of Primary Teeth

OBJECTIVE: To study the preventive effects of fluoride drop on dental caries for children. METHODS: The comparative method was carried out in 1 200 children aged from 3 to 4. The subjects were divided into three groups: fluoride drop group, fluoride toothpaste group and control group. The research period was 2 years. RESULTS: The results demonstrated that new dfs was 1.35 +/- 0.57 in the fluoride drop group after one year, 1.85 +/- 0.57 after two years. The new dfs was 1.53 +/- 1.09 in the fluoride toothpaste group after one year and 2.75 +/- 1.33 after two years. There was no significant difference of the dfs reduction between fluoride drop and toothpaste group. CONCLUSION: Fluoride drop is effective in the prevention of dental caries in Chinese kindergarten and primary school children.