磷酸酸蚀结合流动树脂对年轻恒牙窝沟封闭的疗效分析  

Effect evaluation of phosphoric acid etching combined with flowable composite resin in pit and fissure sealant of young permanent molars

作　　者：谢妮娜[1,2] 宋文婷[1] 魏路明 刘宗响[3] 

机构地区：[1]徐州医学院口腔医学院口腔内科教研室,江苏徐州221002 [2]徐州医学院附属徐州口腔医院儿童口腔科,江苏徐州221004 [3]徐州医学院附属徐州口腔医院牙周黏膜科,江苏徐州221004

出　　处：《口腔医学》2015年第12期1045-1047,1075,共4页Stomatology

基　　金：江苏省高校自然科学基金资助项目(10KJB320026)

摘　　要：目的比较3M流动树脂和3M窝沟封闭剂为第一恒磨牙行窝沟封闭术,2种材料窝沟封闭的保留率及龋病发生率情况。方法选择7-9岁120例240颗窝沟较深无龋的下颌第一恒磨牙,采用自身半口对照方法,掷币法随机选择一侧为3M流动树脂组,另一侧则为3M窝沟封闭剂组。于术后3、6、12、24个月复查,检查两组窝沟封闭材料的保留率和封闭后牙齿的患龋状况。结果第3、6个月两组第一恒磨牙的窝沟封闭材料保留率、龋病发生率及龋降低率有差异但是无统计学意义（P〉0.05）。第12、24个月流动树脂组封闭材料的保留率、龋降低率高于窝沟封闭剂组,龋患病率低于窝沟封闭剂组,差异有统计学意义（P〈0.05）。结论表面处理法相同的情况下,流动树脂组远期疗效优于窝沟封闭剂组,提高了封闭材料的保留率,降低了龋病的患病率。Objective After the teeth were etched with 35% phosphoric acid,the first permanent molars were sealed by 3M flowable composite resin and common pit and fissure sealant so as to compare the retention rate and caries prevalence rate of dental caries by the two kinds of sealing material. Methods 240 permanent mandibular first molars with deep fissures and with no caries among 120 children of 7- 9 years old were selected. The self export control method was used. According to the result of coin tossing,one side was chosen as the phosphoric acid ＋ 3M flowable resin group,and the other side the phosphoric acid etching ＋ 3M pit and fissure sealant group. After 3 months,6 months,12 months,and 24 months,pit and fissure sealant retention and caries rates were respectively examined. Results In the 3rd and 6th months,pit and fissure sealant retention,and caries decrease rate between two groups were different with no statistical significance（ P〉0. 05）. In the 12 th and 24 th months,retention and caries decrease rates in the flowable composite resin group were higher than those in the pit and fissure sealant group,while caries incidence rate was lower than that in the pit and fissure sealant group. The differences were statistically significant（ P〈0. 05）. Conclusions The clinical effect of the phosphoric acid etching combined with flowable composite resin is better than that of phosphoric acid etching combined with pit and fissure sealant. The former method can increase retention rate of sealing materials,thus lowering prevalence rate of dental caries.

关 键 词：磷酸酸蚀 流动树脂 窝沟封闭 保留率 龋病发生率 

分 类 号：R788.1[医药卫生—口腔医学]