International Journal of Applied Dental Sciences
2018, Vol. 4 Issue 4, Part F
Cyclic Fatigue Resistance of Genius, RC Gold and Revo-S Nickel-titanium Instruments
AUTHOR(S): Mustafa Gündoğar and Güzide Pelin Sezgin
Aim: To compare the cyclic fatigue resistance of Revo-S, Genius, and RC Gold Primary files using static cyclic fatigue test device.
Materials and Methods: Twenty Revo-S (25/.06), 20 Genius (25/.04), and 20 RC Gold (25/.08) 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: Revo-S; group 2: Genius; and group 3: RC Gold). 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) and the length of the fractured segments were calculated. The data were analyzed statistically using Kruskal-Wallis test (P < .05).
Results: There was a significant difference among the groups (P < .05). The Genius showed the greatest mean of NCF (4155.22 ± 139.55), and the Revo-S showed the lowest mean of NCF (1480.60 ± 118.92).
Conclusions: Within the limitations of this in vitro study, the cyclic fatigue resistance of the Genius system was higher than the Revo-S and RC Gold instruments.
Pages: 342-345 | 1063 Views 32 Downloads
How to cite this article:
Mustafa Gündoğar, Güzide Pelin Sezgin. Cyclic Fatigue Resistance of Genius, RC Gold and Revo-S Nickel-titanium Instruments. Int J Appl Dent Sci 2018;4(4):342-345. DOI: https://doi.org/10.22271/oral.2018.v4.i4f.520