2026-08-23T06:36:29Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/440592024-10-23T15:24:36Zcom_20.500.14352_14col_20.500.14352_15
Differences in Cyclic Fatigue Resistance at Apical and Coronal Levels of Reciproc and WaveOne New Files
Arias Paniagua, Ana María
Pérez-Higueras Sánchez-Escalonilla, Juan
Macorra García, José Carlos De La
Introduction: Recent improvements in alloys, kinematics, and concepts have been combined to increase the cyclic fatigue resistance of nickel-titanium (NiTi) instruments. The aim of this study was to compare the cyclic fatigue resistance of new M-Wire reciprocating WaveOne (Dentsply Maillefer, Ballaigues, Switzerland) and Reciproc (VDW GmbH, Munich, Germany) files at 2 levels.
Methods: Sixty Reciproc and 60 WaveOne new files were fixed to a specifically designed device and tested in tempered steel canals with a 3-mm radius and a 60° angle of curvature. The motor used was programmed as defined by each manufacturer, and the specific reciprocating motion was followed. Thirty files of each brand were tested at 5 mm, and 30 were tested at 13 mm from their tips. The time to failure was registered. Weibull analysis was used to calculate the mean life, beta, and eta parameters.
Results: The probability of the mean life was higher for Reciproc than WaveOne files at both levels, with the probability of the Reciproc mean life being 62% higher than that of WaveOne at 5 mm from the tip and 100% higher at 13 mm (all statistically significant). The probability of the mean life was higher at 5 mm than at 13 mm in both systems. The results may have been partially conditioned by the different motions that manufacturers propose for each system.
Conclusions: Reciproc files were more resistant to cyclic fatigue than WaveOne files at both distances from the tip. Both systems had greater cyclic fatigue resistance at 5 mm than at 13 mm from the tip.
2023-06-20T03:37:09Z
2023-06-20T03:37:09Z
2023-06-20T03:37:09Z
2012
journal article
https://hdl.handle.net/20.500.14352/44059
0099-2399
10.1016/j.joen.2012.05.022
spa
Arias, A.; Perez-Higueras, J. J.; De La Macorra, J. C. Differences in Cyclic Fatigue Resistance at Apical and Coronal Levels of Reciproc and WaveOne New Files. Journal of Endodontics 2012, 38(9), 1244–1248. doi:10.1016/j.joen.2012.05.022.
open access
Elsevier