新型往复式滑行路径锉在45度和60度弯曲根管中的抗循环疲劳性能
Cyclic fatigue resistance of new reciprocating glide path files in 45- and 60-degree curved canals.
作者信息
Topçuoğlu H S, Topçuoğlu G, Kafdağ Ö, Arslan H
机构信息
Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
Oral and Dental Health Hospital, Kayseri, Turkey.
出版信息
Int Endod J. 2018 Sep;51(9):1053-1058. doi: 10.1111/iej.12915. Epub 2018 Mar 24.
AIM
To compare the cyclic fatigue resistance of R-PILOT and WaveOne Gold Glider files in curved artificial canals.
METHODOLOGY
A total of 60 new R-PILOT and WaveOne Gold Glider files were tested in artificial canals with 45° and 60° angles of curvature. Fifteen new files of each brand were tested in both canals. Cyclic fatigue resistance was determined by recording the time to file fracture in the artificial canals. The length of each fractured fragment was also recorded. An independent sample t-test was used to analyse the data.
RESULTS
In the canal with a 45° angle of curvature, no significant differences were observed between the R-PILOT and WaveOne Gold Glider files (P > 0.05). In the canal with a 60° angle of curvature, WaveOne Gold Glider files had greater cyclic fatigue resistance than R-PILOT files (P < 0.05). There was no difference between the files in terms of the lengths of fractured fragments in canals with 45° and 60° angles of curvature (P > 0.05).
CONCLUSIONS
WaveOne Gold Glider files exhibited greater cyclic fatigue resistance than R-PILOT files in artificial canals with a 60° angle of curvature.
目的
比较R-PILOT锉和WaveOne Gold Glider锉在弯曲人工根管中的抗循环疲劳性能。
方法
共60支全新的R-PILOT锉和WaveOne Gold Glider锉在曲率为45°和60°的人工根管中进行测试。每个品牌各15支新锉在两种根管中进行测试。通过记录锉在人工根管中折断的时间来确定抗循环疲劳性能。还记录了每个折断片段的长度。采用独立样本t检验分析数据。
结果
在曲率为45°的根管中，R-PILOT锉和WaveOne Gold Glider锉之间未观察到显著差异（P>0.05）。在曲率为60°的根管中，WaveOne Gold Glider锉比R-PILOT锉具有更强的抗循环疲劳性能（P<0.05）。在曲率为45°和60°的根管中，两种锉在折断片段长度方面没有差异（P>0.05）。
结论
在曲率为60°的人工根管中，WaveOne Gold Glider锉比R-PILOT锉表现出更强的抗循环疲劳性能。
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