有机溶剂被动超声激活对两种根管封闭剂的溶解效果
The Efficacy of Passive Ultrasonic Activation of Organic Solvents on Dissolving Two Root Canal Sealers.
作者信息
Trevisan Letícia, Huerta Isadora Razzera, Michelon Carina, Bello Mariana De Carlo, Pillar Rafael, Souza Bier Carlos Alexandre
机构信息
Department of Stomatology, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
Graduate Program in Dental Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
出版信息
Iran Endod J. 2017 Winter;12(1):25-28. doi: 10.22037/iej.2017.05.
INTRODUCTION
The aim of this study was to evaluate the dissolving efficacy of eucalyptol and orange oil solvents associated with passive ultrasonic activation (PUA) in zinc oxide-eugenol (ZOE) based and epoxy resin-based root canal sealers.
METHODS AND MATERIALS
Seventy samples of each sealer were prepared and then randomized according to the solvent and the time of the ultrasonic activation (=5). The mean amount of weight loss of sealers was calculated in percentages and was analyzed by using the Kruskal-Wallis and Bonferroni post-hoc tests.
RESULTS
The greatest values of weight loss were obtained with the ZOE sealer groups (<0.05), regardless of the solvent that was used. An application of PUA for 3 min, with a renewal of orange oil solvent each min, showed the greatest percentage of weight loss in ZOE sealer compared to the others templates (<0.05). Neither the solvent nor the different times had any influence on the weight loss of the resin sealer (>0.05).
CONCLUSION
The application of PUA with essential oils can be an effective method in dissolving ZOE based sealers.
引言
本研究的目的是评估桉叶油醇和橙油溶剂与被动超声激活（PUA）联合使用时，对氧化锌丁香酚（ZOE）基和环氧树脂基根管封闭剂的溶解效果。
方法和材料
每种封闭剂制备70个样本，然后根据溶剂和超声激活时间（=5）进行随机分组。计算封闭剂失重的平均百分比，并使用Kruskal-Wallis和Bonferroni事后检验进行分析。
结果
无论使用何种溶剂，ZOE封闭剂组的失重值最大（<0.05）。与其他模板相比，PUA应用3分钟，每分钟更换一次橙油溶剂，ZOE封闭剂的失重百分比最大（<0.05）。溶剂和不同时间对树脂封闭剂的失重均无影响（>0.05）。
结论
PUA与精油联合应用可能是溶解ZOE基封闭剂的有效方法。
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