Journal of Conservative Dentistry

ORIGINAL ARTICLE
Year
: 2014  |  Volume : 17  |  Issue : 3  |  Page : 250--254

Cyclic fatigue resistance of OneShape, Reciproc, and WaveOne: An in vitro comparative study


Alberto Dagna1, Claudio Poggio1, Riccardo Beltrami2, Marco Colombo1, Marco Chiesa1, Stefano Bianchi1 
1 Department of Clinical, Surgical, Diagnostic and Pediatric Sciences-Section of Dentistry, University of Pavia, Pavia, Italy
2 Department of Occupational Medicine, Ergonomy and Disability, Laboratory of Nanotechnology, Salvatore Maugeri Foundation IRCCS, Pavia, Italy

Correspondence Address:
Claudio Poggio
Department of Clinical, Surgical, Diagnostic and Pediatric Sciences - Section of Dentistry, Policlinico DQSan MatteoDQ, Piazzale Golgi 3, 27100 Pavia
Italy

Aims: The aim of this in vitro study was to evaluate the cyclic fatigue resistance of three single-use nickel-titanium (NiTi) instruments. Materials and Methods: Forty files each of OneShape (OS), Reciproc R25 (R25), WaveOne Primary (WO) file, and ProTaper (PT) F2 (as control) were tested in four curved artificial canals with different angles and radii of curvature. The number of cycles to fracture (NCF) was determined and the data were compared for differences by using two-way analysis of variance (P < 0.05). Results: In general, all single-use instruments were more resistant than traditional rotary instrument used as control. R25 showed the highest cyclic fatigue resistance. One Shape and WO files showed similar cyclic fatigue resistance values, higher than PT F2. Conclusions: Within the limitations of this study, it can be concluded that R25 was the most fatigue resistant. OS rotary instruments seem to have good mechanical resistance, similar to NiTi files developed for reciprocating motion.


How to cite this article:
Dagna A, Poggio C, Beltrami R, Colombo M, Chiesa M, Bianchi S. Cyclic fatigue resistance of OneShape, Reciproc, and WaveOne: An in vitro comparative study.J Conserv Dent 2014;17:250-254


How to cite this URL:
Dagna A, Poggio C, Beltrami R, Colombo M, Chiesa M, Bianchi S. Cyclic fatigue resistance of OneShape, Reciproc, and WaveOne: An in vitro comparative study. J Conserv Dent [serial online] 2014 [cited 2020 Sep 27 ];17:250-254
Available from: http://www.jcd.org.in/article.asp?issn=0972-0707;year=2014;volume=17;issue=3;spage=250;epage=254;aulast=Dagna;type=0