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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 effect of root canal occlusion of four kinds of root canal filling paste. Methods: Forty isolated single root teeth were randomly divided into 4 groups: conventional open pulp and unloaded pulp. The root canal preparation was performed by stepwise retrograde method. The lateral root canal was filled with Gattaflow, AHPlus, Resilon-Epiphany and ZOE respectively Dye penetration method was used to detect microleakage in each group and statistical analysis (ANOVA) was performed. Results: The mean of microleakage in Resilon-Epiphany group was the lowest, which was significantly lower than that in the other three groups (P <0.05). The Gattaflow group was slightly lower than that in AHPlus group, but there was no significant difference (P> 0.05) The average value of leakage was significantly different from the other three groups (P <0.05). Conclusions: Resilon-Epiphany's canal closure is superior to Gattaflow and AH Plus.