Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
J Endod. 2019 Oct;45(10):1253-1257. doi: 10.1016/j.joen.2019.06.012. Epub 2019 Aug 10.
The present study aimed to compare the torsional resistance of ProGlider (Dentsply Sirona, Ballaigues, Switzerland), Hyflex EDM (Coltene-Whaledent, Altstätten, Switzerland), and One G (Micro-Mega, Besancon, France) glide path instruments.
Fifteen ProGlider (16.02∼08), 15 Hyflex EDM (10.05), and 15 One G (14.03) instruments were collected and tested for torsional strength using a custom-designed testing device. Data were analyzed using 1-way analysis of variance and Tukey post hoc tests with 5% significance level. The tested specimens were examined under a scanning electron microscope.
There was no significant difference between Hyflex EDM and ProGlider regarding their torsional resistance values (P > .05). One G showed the lowest torsional resistance (P < .05). Hyflex EDM exhibited the highest angle of rotation values among the instruments (P < .05).
Hyflex EDM and ProGlider instruments had significantly higher torsional fatigue resistance than One G instruments, whereas Hyflex EDM showed the highest angle of rotation values. The differences in the torsional resistances might be associated with their different design features and manufacturing processes.
本研究旨在比较 ProGlider（登士柏西诺德，比拉格，瑞士）、Hyflex EDM（登士柏瀚瑞，阿尔特施塔特，瑞士）和 One G（美格珐，贝桑松，法国）导丝器械的扭转阻力。
收集了 15 个 ProGlider（16.02∼08）、15 个 Hyflex EDM（10.05）和 15 个 One G（14.03）器械，并使用定制的测试装置测试其扭转强度。使用单向方差分析和 Tukey 事后检验进行数据分析，置信水平为 5%。对测试样本进行扫描电子显微镜检查。
Hyflex EDM 和 ProGlider 在扭转阻力值方面没有显著差异（P >.05）。One G 的扭转阻力最低（P <.05）。Hyflex EDM 是所有器械中旋转角度最大的（P <.05）。
Hyflex EDM 和 ProGlider 器械的扭转疲劳阻力明显高于 One G 器械，而 Hyflex EDM 显示出最大的旋转角度。扭转阻力的差异可能与它们不同的设计特点和制造工艺有关。
