Damos la enhorabuena de nuevo a otro ex-alumno y actual profesor colaborador de nuestro máster. Esta vez se trata de Ramiro Montenegro quien ha publicado su trabajo de investigación 'An in vitro comparison of cyclic fatigue resistance of proTaper universal and GT series x files' en la revista científica Med Oral Patol Oral Cir Bucal.
An in vitro comparison of cyclic fatigue resistance of proTaper universal and GT series x files.
ABSTRACT.
Objective: The aim of this study was to compare the cyclic fatigue resistance of two nickel-titanium (NiTi) endodontic instruments from ProTaper and GT series X files.
Study Design: Cyclic fatigue test was realized with instruments from ProTaper: F1 and F3 (Denstply Maillefer, Ballaigues, Switzerland) and GT-X: 20.06 and 30.08 (Dentsply Tulsa Dental, Tulsa, Oklahoma, United States of America). A total of 320 instruments were rotated in 4 curved artificial canals with different angles and radius of curvature. The time and cycles to failure were calculated. The data was compared using a Mann-Whitney, Kruskall-Wallis, and Kolmogorov-Smirnov tests, with a significance level of p<0.05.
Results: GT-X files rotated for a significantly longer period of time before separation occurred, thus GT-X files where more resistant to the cyclic fatigue compared with ProTaper.
Conclusion: GT-X files have a greater resistance to cyclic fatigue, this fact can be caused by the use of the Ni-Ti alloy “M-Wire”.
Key words: Endodontics, GT-X files, ProTaper files, cyclic fatigue
Montenegro-Santillán R, Alegre-Domingo T, Faus-Matoses V, Faus-Llácer V. An in vitro comparison of cyclic fatigue resistance of proTaper universal and GT series x files. Med Oral Patol Oral Cir Bucal. (2013), doi:10.4317/medoral.18595
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¡Enhorabuena Ramiro! ¡Enhorabuena equipo!
