氟化钠滴剂防龋二年临床效果观察

Clinical Study of Using Sodium Fluoride Drops for Preventing Caries After Two Years

选择四川省德阳市绵竹县２所幼儿园２２１名３岁儿童为观察对象，观察用氟化钠滴剂预防乳牙龋２年临床效果。其中１３９名为实验组，８２名为对照组，每人每天给予定量的氟化钠滴剂，在１年、２年后进行复查。结果，实验组与对照组比较，其龋患率、龋均、龋面均１年后降低不明显，２年后分别降低３８．９８％，３６．５４％和３３．９６％。

Abstract This artical introduces the use of sodium fluoride drops for preventing dental caries after two years.221 3-year-old children were divided two groups.139 children were test group and 82 children were control group. The children of test group were given rationing sodium fluoride dropo every day for two years. Two groups were examined after one year and two years. Compare the result of two groups,the reduction rates of incidence, dmft and dmfs were 38.98%,36.54%and 33.96%after two years.