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ORIGINAL RESEARCH Table of Contents   
Year : 2016  |  Volume : 27  |  Issue : 3  |  Page : 278-282
Cyclic fatigue resistance of different continuous rotation and reciprocating endodontic systems


1 Department of Endodontic, University of Fortaleza (UNIFOR), Fortaleza, Ceará, Brazil
2 Department of Restorative Dentistry and Endodontic, Piracicaba Dental School (UNICAMP), Piracicaba, São Paulo, Brazil

Correspondence Address:
Fabio de Almeida-Gomes
Department of Endodontic, University of Fortaleza (UNIFOR), Fortaleza, Ceará
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9290.186244

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Objective: The objective of this study is to compare the cyclic fatigue resistance of nine types of endodontic instruments of nickel–titanium. Materials and Methods: Five files of 25 mm of length of each group: Reciproc (RC) R25; WaveOne (WO) Primary; Unicone (UC) L25 25/0.06; K3XF 25/0.06; ProTaper Universal F2 (PTF2); ProTaper Next X2 (PTX2); Mtwo 25/0.06; BioRaCe 25/0.06; One Shape L25 25/0.06 were subjected to a cyclic fatigue resistance test on a mechanical apparatus. The mean fracture time was analyzed statistically by one-way analysis of variance and Tukey's honest significant difference post hoc test, with significance set at P< 0.05. Conclusion: It was observed that the groups PTX2, RC, R25, UC L25 25/0.06, and WO Primary presented greater cyclic fracture resistance than the other groups (P< 0.001).


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