Yadav Hemant Kumar, Yadav Rakesh Kumar, Chandra Anil, Thakkar Rahul Rameshbhai
Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India.
Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India.
J Conserv Dent. 2016 Jul-Aug;19(4):332-7. doi: 10.4103/0972-0707.186447.
The objective of this study was to evaluate the dissolution effectiveness of eucalyptus oil, orange oil, xylene, and distilled water on three different endodontic sealers.
About 240 samples of root canal sealers (eighty for each sealer) were prepared and divided into four groups of 20 each for immersion in different organic solvents. Each group was further subdivided into two subgroups (n = 10) for 2 and 10 min of immersion time. The mean percentage of weight loss was determined for each sealer in each solvent at both time periods. Data were statistically analyzed by two factor analysis of variance and significance of mean difference was obtained by Tukey's post hoc test (P < 0.05).
The lowest level of solubility was observed for Adseal followed by Apexit Plus and Endomethasone N at both time periods in all solvents. Apexit Plus showed no significant (P > 0.05) difference in its dissolution in all the organic solvents except distilled water at both the time periods. The solubility profile of Endomethasone N and Adseal did not differ significantly among eucalyptus oil, orange oil, and xylene at 2 min and between eucalyptus oil and orange oil at 10 min. However, at 10 min, Endomethasone N and Adseal showed a more pronounced solubility in xylene as compared to both eucalyptus oil and orange oil.
In general, xylene was the most effective in dissolving root canal sealers than other organic solvents. Essential oils (eucalyptus oil and orange oil) were found similar in their ability to dissolve Apexit Plus and Endomethasone N.
本研究的目的是评估桉叶油、橙油、二甲苯和蒸馏水对三种不同根管封闭剂的溶解效果。
制备约240个根管封闭剂样本（每种封闭剂80个），并分为四组，每组20个，用于浸泡在不同的有机溶剂中。每组进一步细分为两个亚组（n = 10），浸泡时间分别为2分钟和10分钟。在两个时间段内，测定每种溶剂中每种封闭剂的平均失重百分比。数据采用双因素方差分析进行统计学分析，平均差异的显著性通过Tukey事后检验获得（P < 0.05）。
在所有溶剂的两个时间段内，Adseal的溶解度最低，其次是Apexit Plus和Endomethasone N。在两个时间段内，除蒸馏水外，Apexit Plus在所有有机溶剂中的溶解差异均无统计学意义（P > 0.05）。Endomethasone N和Adseal在2分钟时在桉叶油、橙油和二甲苯中的溶解度分布无显著差异，在10分钟时在桉叶油和橙油之间也无显著差异。然而，在10分钟时，与桉叶油和橙油相比，Endomethasone N和Adseal在二甲苯中的溶解度更明显。
总体而言，二甲苯比其他有机溶剂更有效地溶解根管封闭剂。发现香精油（桉叶油和橙油）在溶解Apexit Plus和Endomethasone N的能力方面相似。
