Shaping Ability of Reciproc, WaveOne GOLD, and HyFlex EDM Single-file Systems in Simulated S-shaped Canals
Shaping Ability of Reciproc, WaveOne GOLD, and HyFlex EDM Single-file Systems in Simulated S-shaped Canals
复制标题
DOI：
10.1016/j.joen.2016.12.010
复制
发表时间：
2017-05-01
影响因子：
4.2
通讯作者：
Uslu, Gulsah
中科院分区：
文献类型：
--
作者：
Ozyurek, Taha;Yilmaz, Koray;Uslu, Gulsah
简介：本研究旨在比较Reciproc（RPC; VDW，慕尼黑，德国）、HyFlex EDM（HEDM; Coltene/Whaledent AG，Altsthten，瑞士）和WaveOne GOLD（WOG; Dentsply Maillefer，Ballaigues，瑞士）镍钛（NiTi）锉在S形模拟根管中的成形能力，这些锉由不同的NiTi合金制成。研究方法：使用RPC R25、WOG Primary和HEDM One File系统（n = 20根管/每组）在树脂块中制备60个S形根管，根尖尺寸为0.25 mm。复合图像是由手术前和手术后图像叠加而成。使用数字模板和图像分析软件在22个不同点测量每个系统去除的树脂量。还记录了耳道畸变。使用Kruskal-Wallis和事后Dunn检验在5%水平下对数据进行统计学分析。结果如下：在模拟根管成形过程中未观察到镍钛锉断裂，但在RPC组中观察到1个样品中形成危险区和1个样品中形成凸缘。WOG组和HEDM组的顶侧、内侧和冠侧无统计学显著差异！区域差异无显著性（P >.05）。然而，与WOG和HEDM组相比，RPC组从所有根管区域清除的树脂量在统计学上显著更高（P
Introduction: The aim of the present study was to compare the shaping ability of Reciproc (RPC; VDW, Munich, Germany), HyFlex EDM (HEDM; Coltene/Whaledent AG, Altsthtten, Switzerland), and WaveOne GOLD (WOG; Dentsply Maillefer, Ballaigues, Switzerland) nickel-titanium (NiTi) files made of different NiTi alloys in S-shaped simulated canals. Methods: Sixty S-shaped canals in resin blocks were prepared to an apical size of 0.25 mm using RPC R25, WOG Primary, and HEDM One File (n = 20 canal/per group) systems. Composite images were made from the superimposition of pre- and postinstrumentation images. The amount of resin removed by each system was measured using a digital template and image analysis software in 22 different points. Canal aberrations were also recorded. Data were statistically analyzed using the Kruskal-Wallis and post hoc Dunn tests at the 5% level. Results: NiTi file fracture was not observed during shaping of the simulated canals although a danger zone formation in 1 sample and a ledge in 1 sample were observed in the RPC group. There was no statistically significant difference between the WOG and HEDM groups' apical, medial, and corona! regions (P >.05). However, it was determined that the RPC group removed a statistically significantly higher amount of resin from all the canal regions when compared with the WOG and HEDM groups (P