scholarly journals Cyclic fatigue resistance of Mtwo NiTi rotary instruments used by experienced and novice operators – an in vivo and in vitro study

2012 ◽  
Vol 18 (6) ◽  
pp. MT41-MT45 ◽  
Author(s):  
Gianluca Plotino ◽  
Dina Al-Sudani ◽  
Stefano Pulino ◽  
Nicola M. Grande ◽  
Piero Alessandro Marcoli ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
In Vitro Study ◽  
Cyclic Fatigue ◽  
Vitro Study ◽  
Rotary Instruments ◽  
Niti Rotary Instruments

scholarly journals Evaluation of the Cyclic Fatigue of Two Single Files at Body and Room Temperature with Different Radii of Curvature

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2256
Author(s):  
Giusy Rita Maria La Rosa ◽  
Valeria Shumakova ◽  
Gaetano Isola ◽  
Francesco Indelicato ◽  
Calogero Bugea ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
In Vitro Study ◽  
Cyclic Fatigue ◽  
Curvature Radius ◽  
Significance Level ◽  
Rotary Instruments ◽  
Significant Difference ◽  
Different Temperatures ◽  
Two Temperatures

Background: To compare the influence of different temperatures and curvature radii on the cyclic fatigue resistance of F6 SkyTaper (F6ST) and One Curve (OC) single file nickel-titanium rotary instruments. Methods: A total of 120 instruments of F6ST and OC #25.06 were evaluated in 5 mm and 3 mm curvature radii at two temperatures (20 °C ± 1 °C and 37 °C ± 1 °C) in 16 mm stainless steel artificial canals associated with a curvature of 60°. The cyclic fatigue of tested files was assessed by employing a customized testing apparatus and expressed as times to fracture (TtF). A statistical analysis was performed with the significance level set at 95%. Results: All instruments decreased their TtF at 37 °C except for OC in the 3 mm radius, in which no significant difference was detected between 20 °C and 37 °C. A 3 mm curvature radius negatively affected TtF of all tested instruments, except for F6ST at 20 °C. F6ST had higher TtF than OC in the 3 mm radius at 20 °C, with no significant difference between them in the other tested conditions. Conclusions: Under the limits of the present in vitro study, body temperature impaired cyclic fatigue resistance of all files, except for OC in the 3 mm curvature radius. All instruments exhibited lower times to fracture in the 3 mm radius, excluding F6ST at 20 °C.

scholarly journals A comparative evaluation of cyclic fatigue resistance of FlexiCON (Edge Endo) files in rotary versus reciprocating motion at various curvatures – An in vitro study

2019 ◽  
Vol 22 (6) ◽  
pp. 554
Author(s):  
PriyaAlice Mathew ◽  
RajeshSasidharan Nair ◽  
JeyabalajiMano Christaine Angelo ◽  
Vijay Mathai ◽  
RV Vineet ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Comparative Evaluation ◽  
In Vitro Study ◽  
Cyclic Fatigue ◽  
Vitro Study ◽  
Reciprocating Motion

scholarly journals Comparative evaluation of the effects of multiple autoclaving on cyclic fatigue resistance of three different rotary Ni-Ti instruments: An in vitro study

2013 ◽  
Vol 16 (4) ◽  
pp. 323 ◽  
Author(s):  
KanthimathinathanMeenakshi Sundaram ◽  
RajeshA V Ebenezar ◽  
MohamedFayas Ghani ◽  
Leena Martina ◽  
Ashwin Narayanan ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Comparative Evaluation ◽  
In Vitro Study ◽  
Cyclic Fatigue ◽  
Vitro Study
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