Cyclic fatigue resistance of different continuous rotation and reciprocating endodontic systems

• Main Authors: Fabio de Almeida-Gomes, Humberto Ramah Menezes de Matos, Rodrigo Ferreira Lopes Arrais Nunes, Ariel Moura Arrais, Claudio Ferreira-Maniglia, Marcelo de Morais Vitoriano, Eduardo Diogo Gurgel-Filho
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2016-01-01
• Series: Indian Journal of Dental Research
• Subjects: Cyclic fatigue resistance; endodontic; instrumentation; Reciproc; reciprocating motion
• Online Access: http://www.ijdr.in/article.asp?issn=0970-9290;year=2016;volume=27;issue=3;spage=278;epage=282;aulast=de
• ISSN: 0970-9290; 1998-3603

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).