Kfir Anda, Blau-Venezia Nuphar, Goldberger Tomer, Abramovitz Itzhak, Wigler Ronald
Department of Endodontology, The Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
Department of Endodontics, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Aust Endod J. 2018 Apr;44(1):26-31. doi: 10.1111/aej.12204. Epub 2017 Jun 23.
The purpose of this study was to compare the effectiveness of self-adjusting file (SAF), XP-endo finisher (XP), passive ultrasonic irrigation (PUI) and conventional syringe and needle irrigation (SNI) in the removal of Ca(OH) from an artificial groove. Eighty mandibular incisors with single oval canals were prepared to size 40/0.04 and split longitudinally. A standardised groove was prepared in the apical third and filled with Ca(OH) . The root halves were reassembled and divided into two control groups (n = 4) and four experimental groups (n = 18) according to the removal methods used. The amount of residual Ca(OH) was evaluated using a four-grade scoring system. The differences among the groups were analysed using the Kruskal-Wallis test (P < 0.05). SAF, XP and PUI removed significantly more Ca(OH) than SNI (P < 0.001), although there were no significant differences among them (P = 0.209). None of the tested methods could completely clean Ca(OH) from the groove.
本研究的目的是比较自调式锉（SAF）、XP根充锉（XP）、被动超声冲洗（PUI）和传统注射器及针头冲洗（SNI）在去除人工凹槽中氢氧化钙（Ca(OH)₂）方面的效果。选取80颗具有单根管椭圆形根管的下颌切牙，预备至40/0.04规格并纵向劈开。在根尖三分之一处制备一个标准化凹槽，并用Ca(OH)₂填充。将根的两半重新组装，并根据所使用的去除方法分为两个对照组（n = 4）和四个实验组（n = 18）。使用四级评分系统评估残留Ca(OH)₂的量。采用Kruskal-Wallis检验分析组间差异（P < 0.05）。SAF、XP和PUI去除的Ca(OH)₂明显多于SNI（P < 0.001），尽管它们之间没有显著差异（P = 0.209）。所测试的方法均不能完全清除凹槽中的Ca(OH)₂。
