玻璃离子非创伤性充填技术与光固化树脂封闭乳牙窝沟的效果观察

Glass ionomer with atraumatic restorative treatment and light-cured resin sealant to the pit and fissure of deciduous teeth

目的比较玻璃离子联合非创伤性充填技术(atraumatic restorative treatment,ART)进行窝沟封闭和光固化树脂窝沟封闭两种方法应用于幼儿乳牙的效果。方法按自身半口随机对照的方法,采用干预试验对89名3岁幼儿左或右半口符合条件的乳磨牙进行玻璃离子联合ART窝沟封闭(ART玻璃离子组),对侧半口符合封闭条件的乳磨牙进行树脂窝沟封闭(树脂组)。ART玻璃离子组共188颗牙齿,树脂组共168颗牙齿。术后记录两组的术中不适发生情况。封闭后6个月、18个月检查窝沟封闭剂的保留情况和新发龋齿情况。对结果进行统计学分析。结果术中不适ART玻璃离子组1例,树脂组8例,两组比较差异无统计学意义(P=0.160)。封闭后6个月、18个月,ART玻璃离子组的封闭物脱落率分别为5.85%、21.81%,树脂组的封闭物脱落率分别为21.43%、38.10%,6个月及18个月时,两组差异均有统计学意义(P<0.05)。6个月、18个月时复查患龋率,ART玻璃离子组分别为1.60%、3.19%,树脂组分别为5.95%、5.95%。6个月时两组差异有统计学意义(P=0.029),18个月时差异无统计学意义(P=0.209)。结论玻璃离子联合ART窝沟封闭应用于幼儿乳牙时,封闭物脱落率低,术中不适少,防龋效果肯定,可在低龄幼儿防龋工作中推广。

Objective To observe the effects of traditional resin sealant and atraumatic restorative treatment（ART） glass ionomer-based pit and fissure sealant by interference experiments for primary molars.Methods Randomized comparison method was used to compare ART glass ionomer-based pit on primary molars of one side with resin sealant on the opposite side.Results Defulvium rates： The defulvium rates of ART glass ionomer sealant after 6 and 18 months were significantly lower than those of resin sealant（P0.05）.Caries rates： The caries rate of ART glass ionomer sealant was significantly lower than that of resin sealant（P=0.029） at 6th month but the difference vanished at the 18th month.But no difference existed regarding with the feeling of discomfort（P=0.160）.Conclusion ART glass ionomer pit and fissure sealant has lower defulvium rate and simple operation with excellent caries-preventing effect.The method is worth popularizing in caries-preventing projects in very young children.