Cyclic Fatigue Resistance of Reciproc, WaveOne, and WaveOne Gold Nickel-Titanium Instruments

Abstract Introduction The purpose of this study was to compare the cyclic fatigue resistance of Reciproc R25 (VDW, Munich, Germany), WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland), and WaveOne Gold Primary files (Dentsply Maillefer). Methods Twenty Reciproc R25, 20 WaveOne Primary, an...

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Bibliographic Details
Published inJournal of endodontics Vol. 42; no. 10; pp. 1536 - 1539
Main Author Özyürek, Taha, DDS, PhD
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.10.2016
Subjects
Cyclic fatigue resistance
Dental Alloys
Dental Instruments
Dental Stress Analysis
Dentistry
Endocrinology & Metabolism
endodontics
Equipment Design
Equipment Failure
Gold
Nickel
Reciproc
Root Canal Preparation - instrumentation
static model
Titanium
WaveOne Gold
endodontics
static model
WaveOne Gold
Reciproc
Cyclic fatigue resistance
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Summary:Abstract Introduction The purpose of this study was to compare the cyclic fatigue resistance of Reciproc R25 (VDW, Munich, Germany), WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland), and WaveOne Gold Primary files (Dentsply Maillefer). Methods Twenty Reciproc R25, 20 WaveOne Primary, and 20 WaveOne Gold Primary instruments were included in this study. The cyclic fatigue tests were performed using a cyclic fatigue testing device, which has an artificial stainless steel canal with a 60° angle of curvature and a 5-mm radius of curvature. The files were randomly divided into 3 groups (group 1: Reciproc R25; group 2: WaveOne Primary; and group 3: WaveOne Gold Primary). All the instruments were rotated until fracture occurred, and the time to fracture was recorded in seconds using a digital chronometer. The number of cycles to failure (NCF) was calculated. The data were analyzed statistically ( P  < .05). Results There was a significant difference among the groups ( P  < .05). The ProTaper Gold Primary showed the greatest mean of NCF (1628 ± 107), and the WaveOne Primary showed the lowest mean of NCF (1153 ± 119.2). Conclusions Within the limitations of this in vitro study, the cyclic fatigue resistance of the WaveOne Gold Primary single-file system was higher than the WaveOne Primary and Reciproc R25 single-file instruments.
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ISSN:0099-2399
1878-3554
DOI:10.1016/j.joen.2016.06.019