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An in vitro cyclic fatigue resistance comparison of conventional and new generation nickel-titanium rotary files

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An in vitro cyclic fatigue resistance comparison of conventional and new generation nickel-titanium rotary files

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dc.contributor.author Ruiz Sánchez, Celia es
dc.contributor.author Faus Matoses, Vicente es
dc.contributor.author Alegre Domingo, Teresa es
dc.contributor.author Faus Matoses, Ignacio es
dc.contributor.author Faus Llácer, Vicente es
dc.date.accessioned 2018-11-28T12:33:40Z
dc.date.available 2018-11-28T12:33:40Z
dc.date.issued 2018 es
dc.identifier.citation Ruiz Sánchez, Celia ; Faus Matoses, Vicente ; Alegre Domingo, Teresa ; Faus Matoses, Ignacio ; Faus Llácer, Vicente. An in vitro cyclic fatigue resistance comparison of conventional and new generation nickel-titanium rotary files. En: Journal of Clinical and Experimental Dentistry, 10 8 2018: 805-809 es
dc.identifier.uri http://hdl.handle.net/10550/68106
dc.description.abstract New designs and processing of Niquel-Titanium (NiTi) have been introduced to increase resistance to cyclic fatigue. The purpose of this study was to compare the cyclic fatigue resistance of 3 NiTi rotary instruments, ProTaper Next (PTN; Dentsply Maillefer, Ballaigues, Switzerland), Profile Vortex Blue (PVB; Dentsply Tulsa Dental, Tulsa, OK, USA) and ProTaper Universal (PTU; Dentsply Maillefer, Ballaigues, Switzerland). A cyclic fatigue test was conducted operating instruments from ProTaper Next X2, Profile Vortex Blue 25.06 and ProTaper F2. A total of 234 instruments were rotated in 2 simulated stainless steel curved canals with different angles of curvature (45º and 60°) and 5-mm radius of curvature. The number of cycles to fracture (NCF) was calculated. Data were compared using 2-way analysis of variance and post-hoc Bonferroni test in software (SPSS 15.0, Chicago, IL). Statistical significance was set at P<0.05. Profile Vortex Blue showed higher resistance to cyclic fatigue in both curved canals than ProTaper Next and ProTaper Universal (P<0.001). ProTaper Universal obtained the lowest resistance to cyclic fatigue in both canals (P<0.001). Profile Vortex Blue was the most resistant to cyclic fatigue failure, followed by ProTaper Next and ProTaper Universal. Anatomical complexity (angle of curvature) and manufacturing process of NiTi are important factors for resistance to cyclic fatigue. es
dc.title An in vitro cyclic fatigue resistance comparison of conventional and new generation nickel-titanium rotary files es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.55091 es
dc.type.hasVersion VoR es_ES

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