| Literature DB >> 24697976 |
Ismail Davut Capar1, Huseyin Ertas, Hakan Arslan.
Abstract
New files (ProTaper Next/HyFlex/OneShape) are made from novel nickel-titanium (NiTi) alloys/treatments. The purpose of this study was to compare the cyclic fatigue resistance of these new instruments with that of Revo-S instruments. Four groups of 20 NiTi endodontic instruments were tested in steel canals with a 3 mm radius and a 60° angle of curvature. The cyclic fatigue of the following NiTi instruments with a tip size 25 and 0.06 taper that were manufactured with different alloys was tested: ProTaper Next X2 (M-Wire), OneShape (conventional NiTi), Revo-S Shaping Universal (conventional NiTi) and HyFlex 25/0.6 (controlled memory NiTi wire). A one-way anova and post-hoc Tukey's test (α = 0.05) revealed that the HyFlex files had the highest fatigue resistance and the Revo-S had the least fatigue resistance among the groups (P < 0.001).Entities:
Keywords: ProTaper Next; cyclic fatigue; heat treatment; nickel-titanium files; rotary
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Year: 2014 PMID： 24697976 DOI： 10.1111/aej.12067
Source DB: PubMed Journal: Aust Endod J ISSN： 1329-1947 Impact factor: 1.659