3种暂封材料在根管治疗中冠方微渗漏的体外效果观察  

The observation of the extracorporal effects of coronal microleakage of three temporary restorative materials used in root canal therapy

作　　者：许姚[1] 沈海燕[1] 

机构地区：[1]江苏省如东县中医院口腔科,如东226400

出　　处：《口腔医学》2011年第12期727-729,共3页Stomatology

摘　　要：目的观察3种暂封材料在根管治疗中冠方微渗漏的体外效果。方法选取近期拔除的完整前磨牙45颗,备洞开髓建立直线通路,随机分为3组,分别用氧化锌丁香油水门汀、牙胶条、Caviton亲水性暂封材充满窝洞,经封闭处理后浸入2%亚甲蓝溶液,1周后取出纵剖牙齿,测量染料渗入深度。结果牙胶条染料渗漏最多,氧化锌丁香油水门汀其次,Caviton亲水性暂封材渗漏最少。3种暂封材料冠方微渗漏差异有统计学意义(P<0.05)。结论 Caviton亲水性暂封材封闭效果优于氧化锌丁香油水门汀和牙胶条。Objective To observe the extracorporal effects of coronal microleakage of three temporary restorative materials used in root canal therapy. Methods Endodontie access cavities were prepared on 45 noncarious noncracked intact human molars. A straight line pathway was opened for pulp. The teeth were divided into three experimental groups, one group for zinc oxide clove oil cement, one group for gutta-percha and the other for Caviton hydraulic temporary restorative. The teeth were immersed in 2% methylene blu dye. One week later, the longitudinal cut teeth were taken out and we measured the depth of the dye sinking. Results The depth of the group of gutta-percha was the highest, and then the group of zinc oxide clove oil cement, while the group of Caviton hydraulic tem- porary restorative was the lowest. There was a statistical significance between the three temporary restorative materials （ P 〈 0.05 ）. Conclusions The closure effect of Carlton hydraulic temporary restorative is better than those of zinc oxide clove oil cement or gutta- percha.

关 键 词：暂封材料 根管治疗 冠方微渗漏 

分 类 号：R783.1[医药卫生—口腔医学]