2种光固化窝沟封闭剂的防龋效果评价

Clinical evaluation of two light cured pit and fissure sealants for preventing pit and fissure caries in children

目的:探讨光固化窝沟封闭剂预防窝沟龋的临床疗效。方法:选择162例6￣8岁儿童的416颗健康恒牙,分为2组,分别采用窝沟釉质成形封闭术和窝沟杯刷清洗封闭术对窝沟进行封闭,比较2种封闭术封闭剂保留率和龋病发生率,并通过自身对照,观察2种封闭术的临床效果,采用SPSS10.0统计软件包进行χ2检验。结果:窝沟釉质成形封闭术3年封闭剂保留率和龋病发生率分别为85.4%、0.9%,窝沟杯刷清洗封闭术3年封闭剂保留率和龋病发生率分别为63.8%、6.7%,2组封闭剂保留率和龋病发生率均有显著性差异(P<0.05)。结论:2种封闭术均有良好的临床疗效,窝沟釉质成形封闭术的防龋效果优于窝沟杯刷清洗封闭术。

PURPOSE： To evaluate the clinical effect of two light cured pit and fissure sealants for preventing pit and fissure caries. METHODS： 416 health permanent teeth in 162 children aged 6 to 8 years old children were divided into two groups, enameloplasty sealant technique （EST） and cup-shaped brush sealant technique （CST） were used in two groups, respeitively. 90 and 112 contralateral healthy teeth were used as self controls respectively. The rate of the sealant reservation and the incidence of caries were compared in the two groups, and the clinical effect of the two groups was compared using SPSSI0.0 software package for Chi-square test. RESULTS： After 3 years, the rate of the sealant reservation and the incidence of caries of EST were 85.4% and 0.9% respectively, the rate of the sealant reservation and the incidence of caries of CST were 63.8% and 6.7% respectively. Statistical analysis revealed a significant difference （P〈 0.05） between the two groups. CONCLUSION： EST and CST both have good clinical effects, While EST is superior to CST in preventing pit and fissure caries.