Gokturk Hakan, Ozkocak Ismail, Buyukgebiz Feyzi, Demir Osman
Gaziosmanpasa University, Faculty of Dentistry, Department of Endodontics, Tokat, Turkey.
Gaziosmanpasa University, Faculty of Medicine, Department of Biostatistics, Tokat, Turkey.
J Appl Oral Sci. 2017 May-Jun;25(3):290-298. doi: 10.1590/1678-7757-2016-0414.
The aim of this study was to investigate the ability of laser-activated irrigation (LAI), XP-endo Finisher, CanalBrush, Vibringe, passive ultrasonic irrigation (PUI), and conventional syringe irrigation systems on the removal of calcium hydroxide (CH) from simulated root canal irregularities.
The root canals of one hundred and five extracted single-rooted teeth were instrumented using Reciproc rotary files up to size R40. The teeth were split longitudinally. Two of the three standard grooves were created in the coronal and apical section of one segment, and another in the middle part of the second segment. The standardized grooves were filled with CH and the root halves were reassembled. After 14 days, the specimens were randomly divided into 7 experimental groups (n=15/group). CH was removed as follows: Group 1: beveled needle irrigation; Group 2: double side-vented needle irrigation; Group 3: CanalBrush; Group 4: XP-endo Finisher; Group 5: Vibringe; Group 6: PUI; Group 7: LAI. The amount of remaining CH in the grooves was scored under a stereomicroscope at 20× magnification. Statistical evaluation was performed using Kruskal-Wallis and Bonferroni-Correction Mann-Whitney U tests.
Groups 1 and 2 were the least efficient in eliminating CH from the grooves. Groups 6 and 7 eliminated more CH than the other protocols; however, no significant differences were found between these two groups (P>.05).
Nevertheless, none of the investigated protocols were able to completely remove all CH from all three root regions. LAI and PUI showed less residual CH than the other protocols from artificial grooves.
本研究旨在探讨激光激活冲洗（LAI）、XP-endo Finisher、根管刷、Vibringe、被动超声冲洗（PUI）和传统注射器冲洗系统从模拟根管不规则处去除氢氧化钙（CH）的能力。
使用Reciproc旋转锉将105颗拔除的单根牙的根管预备至R40号。将牙齿纵向劈开。在其中一段的冠部和根尖部制作三个标准凹槽中的两个，在第二段的中部制作另一个。将标准化凹槽填充CH，然后将两半根重新组装。14天后，将标本随机分为7个实验组（每组n = 15）。按以下方法去除CH：第1组：斜面针冲洗；第2组：双侧孔针冲洗；第3组：根管刷；第4组：XP-endo Finisher；第5组：Vibringe；第6组：PUI；第7组：LAI。在20倍放大倍数的体视显微镜下对凹槽中剩余CH的量进行评分。使用Kruskal-Wallis检验和Bonferroni校正的Mann-Whitney U检验进行统计学评估。
第1组和第2组从凹槽中清除CH的效率最低。第6组和第7组比其他方案清除的CH更多；然而，这两组之间未发现显著差异（P>0.05）。
然而，所研究的任何方案都不能完全从所有三个根区域中去除所有CH。与其他方案相比，LAI和PUI在人工凹槽中显示出较少的CH残留。
