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目的探讨窝沟封闭术(PFS)在预防儿童龋齿中的临床疗效。方法收集2011年8月至2012年6月进行健康体检的儿童98例,随机分为实验组和对照组各49例,实验组采用PFS对儿童龋齿进行预防,共封闭168颗牙,对照组进行常规预防,观察龋齿发生率和封闭剂脱落情况。结果随访6个月、1年和1.5年,观察组龋齿发生率分别为1.2%,3.0%和4.8%;对照组龋齿发生率分别为26.8%,35.7%和46.4%,两组比较差异有统计学意义(P<0.05)。PFS术后封闭剂完整保留数为152,138和127,保留率为90.5%,82.1%和75.6%。结论 PFS在预防儿童龋齿中效果显著,且脱落率低。
Objective To investigate the clinical efficacy of pit and fissure occlusion (PFS) in preventing children’s dental caries. Methods Ninety-eight healthy children were collected from August 2011 to June 2012. The children were randomly divided into experimental group (49 cases) and control group (49 cases). In the experimental group, PFS was used to prevent dental caries in children. A total of 168 teeth were closed and the control group Routine prevention, observe the incidence of dental caries and sealant shedding. Results The incidence of dental caries was 1.2%, 3.0% and 4.8% in the observation group at 6 months, 1 year and 1.5 years respectively. The incidences of dental caries in the control group were 26.8%, 35.7% and 46.4% respectively, there were statistically significant differences between the two groups Significance (P <0.05). PFS postoperative sealant intact number of 152,138 and 127, the retention rate of 90.5%, 82.1% and 75.6%. Conclusion PFS is effective in preventing dental caries in children and the rate of shedding is low.