Ballal Nidambur Vasudev, Ulusoy Özgür İlke, Rao Sheetal, Gandhi Poornika
Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Karnataka, India.
Department of Endodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey.
Microsc Res Tech. 2019 Nov;82(11):1862-1868. doi: 10.1002/jemt.23353. Epub 2019 Jul 31.
The aim of this study was to evaluate the efficacy of different irrigation protocols in removing two tricalcium silicate-based sealers from simulated root canal irregularities and root canal walls.
Root canals of 140 single-rooted teeth were instrumented. In one-half of each root, an apical groove was created. The samples were divided into two main groups (n = 70) based on the sealer used. In group 1, the grooves were filled with MTA Fillapex; in group 2, BioRoot RCS. The reassembled root halves were divided into six experimental and one control groups: 2.5% NaOCl-17% EDTA (Passive ultrasonic irrigation [PUI]), 5% NaOCl/9% DualRinse HEDP (PUI), 2.5% NaOCl-7% Maleic acid (PUI), 2.5% NaOCl-17% EDTA (Er:YAG laser activated irrigation [LAI]), 2.5% NaOCl/9% DualRinse HEDP (LAI), 2.5% NaOCl-7% Maleic acid (LAI), Distilled water (Control). Specimens were scored using SEM. The data were analysed using Kruskal-Wallis and Mann Whitney U tests.
Maleic acid and DualRinse HEDP removed higher amounts of MTA Fillapex from the grooves compared to EDTA, when used with both activation methods (p < .001).
Ultrasonically activated maleic acid or DualRinse HEDP can be an effective irrigation regimen in removing tricalcium silicate-based sealers.
本研究旨在评估不同冲洗方案从模拟根管不规则处和根管壁清除两种硅酸三钙类封闭剂的效果。
对140颗单根牙的根管进行预备。在每根牙根的一半处制备一个根尖沟。根据所用封闭剂将样本分为两个主要组（n = 70）。在第1组中，沟内填充MTA Fillapex；在第2组中，填充BioRoot RCS。将重新组合的牙根半体分为六个实验组和一个对照组：2.5%次氯酸钠-17%乙二胺四乙酸（被动超声冲洗[PUI]）、5%次氯酸钠/9%DualRinse HEDP（PUI）、2.5%次氯酸钠-7%马来酸（PUI）、2.5%次氯酸钠-17%乙二胺四乙酸（铒钇铝石榴石激光激活冲洗[LAI]）、2.5%次氯酸钠/9%DualRinse HEDP（LAI）、2.5%次氯酸钠-7%马来酸（LAI）、蒸馏水（对照）。使用扫描电子显微镜对标本进行评分。数据采用Kruskal-Wallis检验和Mann Whitney U检验进行分析。
与乙二胺四乙酸相比，当两种激活方法都使用时，马来酸和DualRinse HEDP从沟内清除的MTA Fillapex量更多（p < 0.001）。
超声激活的马来酸或DualRinse HEDP可能是清除硅酸三钙类封闭剂的有效冲洗方案。
