Keskin Cangül, Sariyilmaz Evren, Sariyilmaz Öznur
Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
Department of Endodontics, Faculty of Dentistry, Ordu University, Ordu, Turkey.
J Endod. 2017 Jan;43(1):126-130. doi: 10.1016/j.joen.2016.09.009. Epub 2016 Dec 6.
The aim of this study was to evaluate the effect of supplementary use of XP-endo Finisher file, passive ultrasonic activation (PUI), EndoActivator (EA), and CanalBrush (CB) on the removal of calcium hydroxide (CH) paste from simulated internal resorption cavities.
The root canals of 110 extracted single-rooted teeth with straight canals were prepared up to size 50. The specimens were split longitudinally, and standardized internal resorption cavities were prepared with burs. The cavities and root canals were filled with CH paste. The specimens were divided into 5 groups as follows: XP-endo Finisher, EA, PUI, CB, and syringe irrigation (SI). The root canals were irrigated with 5.25% NaOCl and 17% EDTA for 2 minutes, respectively. Apart from the SI group, both solutions were activated by using tested techniques for 1 minute. The quantity of CH remnants on resorption cavities was scored. Data were analyzed by using Kruskal-Wallis H and Mann-Whitney U tests.
XP-endo Finisher and PUI removed significantly more CH than SI, EA, and CB (P < .05), showing no significant difference between them (P > .05). Differences among SI, EA, and CB were also non-significant (P > .05).
None of the tested techniques render the simulated internal resorption cavities free of CH debris. XP-endo Finisher and PUI were superior to SI, CB, and EA.
本研究旨在评估辅助使用XP-endo Finisher锉、被动超声激活（PUI）、EndoActivator（EA）和根管刷（CB）对从模拟内吸收腔中去除氢氧化钙（CH）糊剂的效果。
选取110颗具有直根管的离体单根牙，将根管预备至50号。将标本纵向劈开，用裂钻制备标准化的内吸收腔。在内吸收腔和根管中充填CH糊剂。将标本分为以下5组：XP-endo Finisher组、EA组、PUI组、CB组和注射器冲洗（SI）组。分别用5.25%次氯酸钠和17%乙二胺四乙酸（EDTA）冲洗根管2分钟。除SI组外，对两种溶液均采用所测试的技术激活1分钟。对内吸收腔中CH残留量进行评分。采用Kruskal-Wallis H检验和Mann-Whitney U检验分析数据。
XP-endo Finisher和PUI去除的CH显著多于SI、EA和CB（P <.05），二者之间无显著差异（P >.05）。SI、EA和CB之间的差异也无统计学意义（P >.05）。
所测试的技术均不能使模拟内吸收腔完全清除CH碎屑。XP-endo Finisher和PUI优于SI、CB和EA。
