Cyclic fatigue resistance of novel Genius and Edgefile nickel-titanium reciprocating instruments.
Abstract
This study aimed to assess the cyclic fatigue resistance of Genius and EdgeFile X1 reciprocating instruments compared with WaveOne Gold Primary. Twenty Genius (Ultradent) 25.04, 20 Genius 30.04, 20 EdgeFile X1 (EdgeEndo) and 20 WaveOne Gold Primary (Dentsply Maillefer) instruments were included in this study and tested in a static cyclic fatigue testing device, which has an artificial stainless steel canal with a 60° angle of curvature and a 5-mm radius of curvature. All instruments were operated in reciprocation mode until fracture occurred. The number of cycles to failure (NCF) was calculated and time to fracture (TF) was recorded in seconds using a digital chronometer. The mean and standard deviations of NCF and TF were calculated for each reciprocating system and the data were subjected to Kruskal-Wallis one-way analysis of variance and to Dunn's test (p < .05) using SigmaPlot software (Systat software, CA, USA). The fractured surfaces of five instruments from each brand were randomly examined and microphotographed by a low-vacuum environmental scanning electron microscopy - SEM (Tabletop Microscope TM3030, Hitachi, Japan) to confirm the cyclic fatigue fracture. EdgeFile exhibited the highest cyclic fatigue resistance, followed by both Genius files (p < .05). Within the limitations of this in vitro study, EdgeFile X1 instruments had significantly higher cyclic fatigue resistance than did Genius and WaveOne Gold Primary instruments. The cyclic fatigue resistance of both Genius files was higher than that of WaveOne Gold Primary.
'전동파일' 카테고리의 다른 글
| 에지엔도 열처리 나이타이파일 동영상 모아보기! (0) | 2019.08.23 |
|---|---|
| 에지테이퍼 플레티넘 VS 프로테이퍼 골드 : 회전피로파절저항성 비교 논문 (0) | 2019.07.11 |
| 전동용 나이타이 로타리 파일의 선택기준 (0) | 2019.02.14 |
| 리트로엠티에이와 나이타이파일은 오스코에서 (0) | 2019.02.01 |
| 에지엔도 광고듵2 (0) | 2019.01.29 |
