4种根管充填糊剂根管封闭能力的体外评价

In vitro evaluation of the sealability for root obturation of four paste

目的:评价4种根管充填糊剂的根管封闭效果。方法:40个离体单根牙随机分为4组,常规开髓、拔髓后,以逐步后退法进行根管预备,分别以Gattaflow、AHPlus、Resilon-Epiphany和ZOE行冷牙胶侧压充填,染色渗透法检测各组微渗漏情况,进行统计学分析(ANOVA)。结果:Resilon-Epiphany组微渗漏均值最低,与其他3组比较有显著性差异(P<0.05);Gattaflow组比AHPlus组略低,但无显著性差异(P>0.05);ZOE组微渗漏均值最高,与其他3组有显著性差异(P<0.05)。结论:Resilon-Epiphany的根管封闭性能优于Gattaflow和AH Plus。

Objective： To evaluate the sealability for root obturation of four paste. Method：40 extracted single-root teeth were divided randomly into 4 groups, after coronal cavity preparation, debridement and instrumentation by step-back technique, lateral compaction was used for the obturation of the root canals, the materials was gutta-percha and Gattaflow, AH Plus,Resilon-Epiphany, ZOE for the 4 groups, respectively. The microleakge of the 4 groups was evaluated by dyeing and the data was analyzed using ANOVA. Result： Microleakge of Resilon-Epiphany group was the lowest, and the difference between this group and the other 3 groups was statistically significant （P 0.05）. Microleakge of Gattaflow group was slightly lower than that of AH Plus group （P 0.05）. Microleakge of ZOE group was the highest, and the difference between ZOE group and the other 3 groups was statistically significant （P 0.05）. Conclusion： The sealability of Resilon-Epiphany was better than that of Gattaflow and AH Plus.