Flexural Fatigue and Torsional Resistance of ProFile GT and ProFile GT Series X Instruments

Peixoto, Isabella Faria da Cunha; Pereira, Érika Sales Joviano; Silva, Jacqueline Gonçalves da; Viana, Ana Cecília Diniz; Buono, Vicente Tadeu Lopes; Bahia, Maria Guiomar de Azevedo

doi:10.1016/j.joen.2009.12.016

Cited by 42 publications

(20 citation statements)

References 25 publications

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“…Earlier studies have reported that thermal treatment of NiTi alloys resulted in greater CF resistance when used in continuous rotation (9,34,35), but until now this fact had not been tested under reciprocation.…”

Section: Kinematicsmentioning

confidence: 99%

Cyclic Fatigue Resistance of K3, K3XF, and Twisted File Nickel-Titanium Files under Continuous Rotation or Reciprocating Motion

Pérez-Higueras

Arias

Macorra

2013

Journal of Endodontics

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Introduction: New designs and alloys and different motions have been introduced to increase the cyclic fatigue (CF) resistance of nickel-titanium (NiTi) files. The aim of this study was to compare the CF resistance of K3 (SybronEndo, Orange, CA), K3XF (SybronEndo), and TF (SybronEndo) files under continuous rotation and reciprocating motion. Methods: A total of 210 files (30-tip diameter, 0.06 fixed taper), 60 K3, 60 K3XF, and 90 TF files, were divided into 7 groups (30 files each): K3-C, K3XF-C, and TF1-C were rotated at 300 rpm; TF2-C was rotated at 500 rpm; and K3-R, K3XF-R, and TF1-R were used in a reciprocating motion. CF resistance was tested in stainless steel, curved canals (60 , r = 3 mm) until fracture, and the time to fracture was recorded. The mean half-life, beta, and eta were calculated for each group and were compared with Weibull analysis. Results: The probability of a longer mean life was greater under reciprocating motion for all of the files (100% for K3, 87% for K3XF, and 99% for TF). Under continuous rotation, K3XF was more resistant than K3 and TF. TF lasted significantly longer than K3. TF was more resistant to CF when rotated at 300 rpm instead of 500 rpm. Under reciprocating motion, there were no significant differences between K3XF and TF mean lives, but both were significantly longer than the K3 mean life (78% for TF and 86% for K3XF). Conclusions: Reciprocating motion and R-phase increase CF resistance. (J Endod 2013;39:1585-1588

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Section: Kinematicsmentioning

confidence: 99%

Cyclic Fatigue Resistance of K3, K3XF, and Twisted File Nickel-Titanium Files under Continuous Rotation or Reciprocating Motion

Pérez-Higueras

Arias

Macorra

2013

Journal of Endodontics

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“…Therefore, one of many promising solutions to improve fatigue resistance of rotary instruments is to optimize the microstructure of NiTi alloys through novel thermomechanical processing or new manufacturing technologies. Recently, a new NiTi wire (termed M-Wire) has been developed through a proprietary thermomechanical processing procedure and showed significantly improved cyclic fatigue resistance on endodontic rotary instrument products (GT series X and ProFile Vortex [Dentsply Tulsa Dental, Tulsa, OK]) in comparison with those made of conventional superelastic NiTi alloys (2)(3)(4)(5)(6). According to the latest study on the metallurgical characterization of M-Wire by Alapati et al (7), M-Wire contains all 3 crystalline phases, including deformed and microtwinned martensite, R-phase, and austenite.…”

mentioning

confidence: 99%

Metallurgical Characterization of M-Wire Nickel-Titanium Shape Memory Alloy Used for Endodontic Rotary Instruments during Low-cycle Fatigue

Yang

Gao²

2012

Journal of Endodontics

164

133

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“…11,17 Ayrıca yapı-lan çalışmalarda M-Wire alaşımının döngüsel yorgunlukta önemli rol oynadığı rapor edilmiştir. [18][19][20] Çalışmamızda PTN X2 NiTi eğelerinin daha yük-sek direnç göstermesinin, PTN X2 eğelerinde kullanılan M-Wire alaşımından kaynaklandığı dü-şünülmektedir.…”

Section: Discussionunclassified

Comparison of Cyclic Fatigue Resistance of ProTaper Universal, ProTaper Next and Extreme CM R3 Nickel Titanium Files

Özyürek¹,

Yılmaz²

2016

Turkiye Klinikleri J Dental Sci

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Flexural Fatigue and Torsional Resistance of ProFile GT and ProFile GT Series X Instruments

Cited by 42 publications

References 25 publications

Cyclic Fatigue Resistance of K3, K3XF, and Twisted File Nickel-Titanium Files under Continuous Rotation or Reciprocating Motion

Cyclic Fatigue Resistance of K3, K3XF, and Twisted File Nickel-Titanium Files under Continuous Rotation or Reciprocating Motion

Metallurgical Characterization of M-Wire Nickel-Titanium Shape Memory Alloy Used for Endodontic Rotary Instruments during Low-cycle Fatigue

Comparison of Cyclic Fatigue Resistance of ProTaper Universal, ProTaper Next and Extreme CM R3 Nickel Titanium Files

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