Effect of Electropolishing ProFile Nickel–Titanium Rotary Instruments on Cyclic Fatigue Resistance, Torsional Resistance, and Cutting Efficiency

2008 ◽  
Vol 34 (2) ◽  
pp. 190-193 ◽  
Author(s):  
Tung B. Bui ◽  
John C. Mitchell ◽  
J. Craig Baumgartner
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Cutting Efficiency ◽  
Torsional Resistance ◽  
Rotary Instruments

scholarly journals Influence of Different Heat Treatments on Torsional and Cyclic Fatigue Resistance of Nickel–Titanium Rotary Files: A Comparative Study

2020 ◽  
Vol 10 (16) ◽  
pp. 5604 ◽  
Author(s):  
Gianluca Gambarini ◽  
Andrea Cicconetti ◽  
Dario Di Nardo ◽  
Gabriele Miccoli ◽  
Alessio Zanza ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Sem Analysis ◽  
Nickel Titanium ◽  
Torsional Resistance ◽  
Heat Treated ◽  
Torsional Test ◽  
Time To Fracture ◽  
Flexural Resistance

Protaper Universal (PTU), Protaper Gold (PTG) (Maillefer, Ballaigues, CH), EdgeTaper (ET), and EdgeTaper Platinum (ETP) (Albuquerque, NM, USA) were tested for both torsional and flexural resistance. The aim of the present study was to evaluate the influence of proprietary heat treatment on the metallurgical properties of the aforementioned instruments. Four groups of 30 different instruments (size 20.07) were tested, then divided into two subgroups of 15 instruments—one for the cyclic fatigue test in a curved canal (90°—2 mm radius) at 300 rpm and 2.5 Ncm. The time to fracture (TtF) and fragment length (FL) were recorded. The other subgroup was subjected to the torsional test (300 rpm, 5.5 Ncm). The torque to fracture and TtF were recorded. All the instruments underwent a SEM analysis. The heat-treated instruments showed a significantly higher fatigue resistance than the non-heat-treated instruments (p < 0.05). No significant differences were found in the torsional resistance between the ET and PTU, and the ETP and PTG. However, when comparing all the groups, the heat-treated instruments showed less torsional resistance. The improvement from heat treatment was mainly found in the cyclic fatigue resistance.

Cyclic fatigue resistance of new and used ProTaper universal and ProTaper next nickel-titanium rotary instruments

2018 ◽  
Vol 8 (2) ◽  
pp. 82 ◽  
Author(s):  
Taha Özyürek ◽  
NeslihanBüşra Keskin ◽  
Gülşah Uslu ◽  
Uğur İnan
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Rotary Instruments

scholarly journals Evaluation of cyclic fatigue resistance of modern Nickel–Titanium rotary instruments with continuous rotation

2017 ◽  
Vol 31 (2) ◽  
pp. 78-82 ◽  
Author(s):  
Massimo Amato ◽  
Giuseppe Pantaleo ◽  
Dina Abdellatif ◽  
Andrea Blasi ◽  
Roberto Lo Giudice ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Rotary Instruments ◽  
Continuous Rotation

Cyclic Fatigue Resistance of Nickel-titanium Rotary Instruments according to the Angle of File Access and Radius of Root Canal

2020 ◽  
Vol 46 (3) ◽  
pp. 431-436 ◽  
Author(s):  
Eugenio Pedullà ◽  
Giusy Rita Maria La Rosa ◽  
Chiara Virgillito ◽  
Ernesto Rapisarda ◽  
Hyeon-Cheol Kim ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Root Canal ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
File Access ◽  
Rotary Instruments

Cyclic fatigue resistance of two nickel-titanium rotary instruments in interrupted rotation

2016 ◽  
Vol 50 (2) ◽  
pp. 194-201 ◽  
Author(s):  
E. Pedullà ◽  
A. Lizio ◽  
M. Scibilia ◽  
N. M. Grande ◽  
G. Plotino ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Rotary Instruments

scholarly journals Effect of deep cryogenic treatment on cyclic fatigue resistance of controlled memory wire nickel-titanium rotary instruments

2020 ◽  
Vol 17 (4) ◽  
pp. 300
Author(s):  
Yazdan Sabet ◽  
Samira Shahsiah ◽  
Mohammad Yazdizadeh ◽  
Sana Baghamorady ◽  
Mansour Jafarzadeh
Keyword(s):  
Fatigue Resistance ◽  
Cryogenic Treatment ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Deep Cryogenic Treatment ◽  
Rotary Instruments

Effects of Sodium Hypochlorite Concentration and Temperature on the Cyclic Fatigue Resistance of Heat-treated Nickel-titanium Rotary Instruments

2018 ◽  
Vol 44 (10) ◽  
pp. 1563-1566 ◽  
Author(s):  
Hussam Alfawaz ◽  
Abdullah Alqedairi ◽  
Hala Alsharekh ◽  
Eman Almuzaini ◽  
Shahd Alzahrani ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Sodium Hypochlorite ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Heat Treated ◽  
Rotary Instruments
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