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目的:评价六龄齿窝沟封闭的防龋效果。方法:抽取112名5~6岁学龄前儿童,采用自身对侧对照的方法,随机选取一侧上下六龄齿进行窝沟封闭,为实验组;对侧同名齿未施行窝沟封闭,为对照组。分别于封闭后1、2、3年进行复查。结果:1~3年封闭剂保留率分别为87.05%、78.04%、71.29%;龋齿降低率分别为80.95%、72.34%、58.06%。结论:窝沟封闭术可有效预防六龄齿龋病的发生。
Objective: To evaluate the anticaries effect of six-year pit and fissure sealant closure. Methods: One hundred and twelve pre-school children aged 5 to 6 years old were selected. The contralateral and fissure sealants were randomly selected from the upper and lower teeth on one side for the experimental group. group. Respectively in closed 1, 2, 3 years to review. Results: The retention rates of sealants from 1 to 3 years were 87.05%, 78.04% and 71.29%, respectively. The reduction rates of dental caries were 80.95%, 72.34% and 58.06%, respectively. Conclusion: Pit and fissure sealant can effectively prevent dental caries in sixth instar teeth.