Comparison of the Mechanical Properties of Rotary Instruments Made of Conventional Nickel-Titanium Wire, M-Wire, or Nickel-Titanium Alloy in R-Phase

2013 ◽  
Vol 39 (4) ◽  
pp. 516-520 ◽  
Author(s):  
Hélio P. Lopes ◽  
Thaiane Gambarra-Soares ◽  
Carlos N. Elias ◽  
José F. Siqueira ◽  
Inês F.J. Inojosa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Nickel Titanium ◽  
Rotary Instruments ◽  
Titanium Wire

scholarly journals An Update on Nickel-Titanium Rotary Instruments in Endodontics: Mechanical Characteristics, Testing and Future Perspective—An Overview

2021 ◽  
Vol 8 (12) ◽  
pp. 218
Author(s):  
Alessio Zanza ◽  
Maurilio D’Angelo ◽  
Rodolfo Reda ◽  
Gianluca Gambarini ◽  
Luca Testarelli ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Mechanical Characteristics ◽  
State Of The Art ◽  
Cyclic Fatigue ◽  
Nickel Titanium ◽  
Future Perspective ◽  
Current State ◽  
Rotary Instruments ◽  
Torsional Loads

Since the introduction of Nickel-Titanium alloy as the material of choice for the manufacturing of endodontic rotary instruments, the success rate of the root canal therapies has been significantly increased. This success mainly arises from the properties of the Nickel-Titanium alloy: the biocompatibility, the superelasticity and the shape memory effect. Those characteristics have led to a reduction in time of endodontic treatments, a simplification of instrumentation procedures and an increase of predictability and effectiveness of endodontic treatments. Nevertheless, the intracanal separation of Nickel-Titanium rotary instruments is still a major concern of endodontists, with a consequent possible reduction in the outcome rate. As thoroughly demonstrated, the two main causes of intracanal separation of endodontic instruments are the cyclic fatigue and the torsional loads. As results, in order to reduce the percentage of intracanal separation research and manufacturers have been focused on the parameters that directly or indirectly influence mechanical properties of endodontic rotary instruments. This review describes the current state of the art regarding the Nickel-Titanium alloy in endodontics, the mechanical behavior of endodontic rotary instruments and the relative stresses acting on them during intracanal instrumentation, highlighting the limitation of the current literature.

Influence of Electrochemical Polishing on the Mechanical Properties of K3 Nickel-Titanium Rotary Instruments

2008 ◽  
Vol 34 (12) ◽  
pp. 1533-1536 ◽  
Author(s):  
Fabiola Ormiga Galvão Barbosa ◽  
José Antônio da Cunha Ponciano Gomes ◽  
Marcos Cesar Pimenta de Araújo
Keyword(s):  
Mechanical Properties ◽  
Nickel Titanium ◽  
Electrochemical Polishing ◽  
Rotary Instruments

Effects of clinical recycling on mechanical properties of nickel-titanium alloy wires

1991 ◽  
Vol 100 (5) ◽  
pp. 428-435 ◽  
Author(s):  
Sunil Kapila ◽  
Gary W. Reichhold ◽  
R. Scott Anderson ◽  
Larry G. Watanabe
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Nickel Titanium

Mechanical properties of nickel-titanium rotary instruments produced with a new manufacturing technique

2011 ◽  
Vol 44 (4) ◽  
pp. 337-341 ◽  
Author(s):  
G. Gambarini ◽  
G. Plotino ◽  
N. M. Grande ◽  
D. Al-Sudani ◽  
M. De Luca ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Nickel Titanium ◽  
Manufacturing Technique ◽  
Rotary Instruments

Mechanical properties of several nickel-titanium alloy wires in three-point bending tests

1999 ◽  
Vol 115 (4) ◽  
pp. 390-395 ◽  
Author(s):  
Hirokazu Nakano ◽  
Kazuro Satoh ◽  
Robert Norris ◽  
Tomoaki Jin ◽  
Tetsuya Kamegai ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Nickel Titanium ◽  
Bending Tests ◽  
Three Point Bending

Mechanical Properties of Various Heat-treated Nickel-titanium Rotary Instruments

2017 ◽  
Vol 43 (11) ◽  
pp. 1872-1877 ◽  
Author(s):  
Hye-Jin Goo ◽  
Sang Won Kwak ◽  
Jung-Hong Ha ◽  
Eugenio Pedullà ◽  
Hyeon-Cheol Kim
Keyword(s):  
Mechanical Properties ◽  
Nickel Titanium ◽  
Heat Treated ◽  
Rotary Instruments

The Effects of Cross-infection Control Procedures on the Tensile and Flextural Properties of Superelastic Nickel-titanium Wires

1996 ◽  
Vol 23 (1) ◽  
pp. 37-41 ◽  
Author(s):  
O. P. Crotty ◽  
E. H. Davies ◽  
S. P. Jones
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Titanium Alloy ◽  
Ultimate Tensile Strength ◽  
Infection Control ◽  
Untreated Control ◽  
Orthodontic Treatment ◽  
Cross Infection ◽  
Nickel Titanium ◽  
Control Procedures

The development of Superelastic nickel-titanium archwires has simplified the alignment phase of orthodontic treatment by permitting the use of highly flexible, resilient archwires and avoiding the need for complex loops. The majority of relatively high cost has led to sterilization and recycling of these wires by some clinicians. This study way designed to examine the effects of currently used infection contorl procedures on the mechanical properties of superelastic nickel-titanium alloy (SENTA®) archwires. One-hundred-and-forty lengths of a SENTA® wire were subjected to various sterilization and disinfection procedures. These included cold disinfection in 2 per cent glutaraladehyde solution for 3-and 24-hour cyles, and steam autoclaving. Single and double cycles were used. The properties investigated were the 0·1 per cent yield strengh, the ultimate tensile strength, and the flexural regidity. No statistically significant differences were found between the groups or against an untreated control.

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