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目的:探讨窝沟封闭术预防窝沟龋齿的临床效果。方法:将68例6～8岁儿童的第1恒磨、第2恒磨牙左右侧进行自身对比,治疗组68名左侧第1恒磨、第2恒磨牙136颗牙进行窝沟封闭术涂布窝沟封闭剂;对照组选择其对侧健康同名牙未涂布窝沟封闭剂,观察窝沟封闭剂保留情况,并比较两组龋病发生率。结果:3年后窝沟封闭剂保留完好率为79.83%;而3年后治疗组患龋率为6.45%,对照组患龋率为25.80%,3年内龋齿发生率治疗组低于对照组,两组比较,差异均有统计学意义(P<0.01)。结论:对六龄齿施行窝沟封闭术,能明显提高封闭剂保留率,从而增强防龋效果。
Objective: To investigate the clinical effect of pit and fissure sealant in preventing pit and fissure caries. Methods: The first permanent mill and the second permanent molars in 68 children aged 6 to 8 years were compared with each other. The 68 left first permanent mill and the second permanent molars in the treatment group were treated by fissure sealant The control group was given the uncoated pit and fissure sealant on the opposite side of the same name to observe the retention of pit and fissure sealant. The incidence of caries was compared between the two groups. Results: The pit and fissure sealant retention rate was 79.83% after 3 years. The caries prevalence in the treatment group was 6.45% after 3 years and that in the control group was 25.8%. The incidence of dental caries in the three years was lower than that in the control group, The differences between the two groups were statistically significant (P <0.01). Conclusion: The fissure sealant occlusion of six-year-old teeth can significantly improve the retention rate of sealant and enhance the anticaries effect.