scholarly journals Cyclic fatigue, torsional failure, and flexural resistance of rotary and reciprocating instruments

2020 ◽  
Vol 23 (4) ◽  
pp. 364
Author(s):  
AmjadAbu Hasna ◽  
CarlosHenrique Ribeiro Camargo ◽  
TatianeSampaio Bittencourt ◽  
RenatoMiotto Palo ◽  
ClaudioAntonio Talge Carvalho ◽  
...  
Keyword(s):  
Cyclic Fatigue ◽  
Reciprocating Instruments ◽  
Flexural Resistance

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 resistances of several nickel-titanium glide path rotary and reciprocating instruments at body temperature

2018 ◽  
Vol 51 (8) ◽  
pp. 924-930 ◽  
Author(s):  
K. Yılmaz ◽  
G. Uslu ◽  
M. Gündoğar ◽  
T. Özyürek ◽  
N. M. Grande ◽  
...  
Keyword(s):  
Body Temperature ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Glide Path ◽  
Reciprocating Instruments

Cyclic Fatigue Resistance of Reciproc Blue, Reciproc, and WaveOne Gold Reciprocating Instruments

2017 ◽  
Vol 43 (8) ◽  
pp. 1360-1363 ◽  
Author(s):  
Cangül Keskin ◽  
Uğur Inan ◽  
Murat Demiral ◽  
Ali Keleş
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Reciprocating Instruments

Bending Resistance and Cyclic Fatigue Life of Reciproc, Unicone, and WaveOne Reciprocating Instruments

2016 ◽  
Vol 42 (12) ◽  
pp. 1789-1793 ◽  
Author(s):  
Emmanuel João Nogueira Leal Silva ◽  
Laise Silva Villarino ◽  
Victor Talarico Leal Vieira ◽  
Thais Accorsi-Mendonça ◽  
Henrique dos Santos Antunes ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Cyclic Fatigue ◽  
Bending Resistance ◽  
Reciprocating Instruments

Cyclic fatigue using severely curved canals and torsional resistance of thermally treated reciprocating instruments

2018 ◽  
Vol 22 (7) ◽  
pp. 2633-2638 ◽  
Author(s):  
Emmanuel João Nogueira Leal Silva ◽  
Victor Talarico Leal Vieira ◽  
Fernanda Hecksher ◽  
Marja Ribeiro Silva dos Santos Oliveira ◽  
Henrique dos Santos Antunes ◽  
...  
Keyword(s):  
Cyclic Fatigue ◽  
Torsional Resistance ◽  
Reciprocating Instruments ◽  
Thermally Treated

Cyclic Fatigue Resistance of Nickel-Titanium Reciprocating Instruments after Simulated Clinical Use

2020 ◽  
Vol 46 (11) ◽  
pp. 1771-1775 ◽  
Author(s):  
Jussaro Alves Duque ◽  
Clovis Monteiro Bramante ◽  
Marco Antonio Hungaro Duarte ◽  
Murilo Priori Alcalde ◽  
Emmanuel João Nogueira Leal Silva ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Clinical Use ◽  
Reciprocating Instruments

scholarly journals Resistance to cyclic fatigue of reciprocating instruments determined at body temperature and phase transformation analysis

2019 ◽  
Vol 45 (3) ◽  
pp. 400-406 ◽  
Author(s):  
Raymond Scott ◽  
Ana Arias ◽  
José C. Macorra ◽  
Sanjay Govindjee ◽  
Ove A. Peters
Keyword(s):  
Phase Transformation ◽  
Body Temperature ◽  
Cyclic Fatigue ◽  
Reciprocating Instruments

scholarly journals Cyclic fatigue resistance of novel Genius and Edgefile nickel-titanium reciprocating instruments

2019 ◽  
Vol 33 ◽  
Author(s):  
Carlos Roberto Emerenciano Bueno ◽  
Marina Tolomei Sandoval Cury ◽  
Ana Maria Veiga Vasques ◽  
Gustavo Sivieri-Araújo ◽  
Rogério Castilho Jacinto ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Reciprocating Instruments
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