Journal ArticleDOI
Separation Incidence of Protaper Rotary Instruments: A Large Cohort Clinical Evaluation
Susan Wolcott,Susan Wolcott,James Wolcott,James Wolcott,David J. Ishley,Wade Kennedy,Scott Johnson,Scott Minnich,Scott Minnich,John Meyers +9 more
TLDR
The results of this study indicate that ProTaper rotary files may be safely reused at least four times, and the size of the rotary file, among other factors, will determine how many times a particular file should be used.About:
This article is published in Journal of Endodontics.The article was published on 2006-12-01. It has received 98 citations till now.read more
Citations
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Journal ArticleDOI
Fatigue Resistance of Engine-driven Rotary Nickel-Titanium Instruments Produced by New Manufacturing Methods
Gianluca Gambarini,Nicola M. Grande,Gianluca Plotino,Francesco Somma,Manish Garala,Massimo De Luca,Luca Testarelli +6 more
TL;DR: The new manufacturing process produced nickel-titanium rotary files (TF) significantly more resistant to fatigue than instruments produced with the traditional NiTi grinding process, which was evaluated by comparing instruments produced by using the twisted method and those using the M-wire alloy.
Journal ArticleDOI
Instrument fracture: mechanisms, removal of fragments, and clinical outcomes
TL;DR: Managed properly, the presence of a broken fragment per se may not adversely affect the outcome of root canal treatment and consideration should be given as to whether or not to remove the fragment.
Journal ArticleDOI
Evaluation of Cyclic Flexural Fatigue of M-Wire Nickel-Titanium Rotary Instruments
TL;DR: The findings of this study suggest that size 30/0.04 nickel-titanium rotary files made from the newly developed M-wire alloy have better cyclic flexural fatigue resistance than files of similar design and size made from a conventional nickel-Titanium alloy.
Journal ArticleDOI
Management of intracanal separated instruments.
TL;DR: This narrative review of separated instruments was to review the literature regarding treatment options, influencing factors, and complications and suggest a decision-making process for their management, citing a lack of high-level evidence.
References
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Journal ArticleDOI
Cyclic fatigue testing of nickel-titanium endodontic instruments.
TL;DR: This study supports engineering concepts of cyclic fatigue failure and suggests that standardized fatigue tests of nickel-titanium rotary instruments should include dynamic operation in a flexed state and the effect of the radius of curvature as an independent variable should be considered when evaluating studies of root canal instrumentation.
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Defects in Rotary Nickel-Titanium Files After Clinical Use
TL;DR: The results indicated that torsional failure, which may be caused by using too much apical force during instrumentation, occurred more frequently than flexural fatigue, which might result from use in curved canals.
Journal ArticleDOI
The "Balanced Force" concept for instrumentation of curved canals
TL;DR: In this article, the balanced force concept, developed by trial and error experimentation over the past 12 yr, is proposed as a means of overcoming the curvature influence. But this concept is not suitable for the case of canal curvature.
The "Balanced Force" Concept for Instrumentation of Curved Canals El Concepto de "Fuerza Balanceada" para la Instrumentacion de Conductos Curvos
TL;DR: The "balanced force concept," developed by trial and error experimentation over the past 12 yr, is proposed as a means of overcoming the curvature influence and comes to fruition with the introduction of a new K-type file design.
Journal ArticleDOI
A comparison of root canal preparations using Ni-Ti hand, Ni-Ti engine-driven, and K-Flex endodontic instruments
TL;DR: This study used a modified Bramante technique and new digital subtraction software to compare root canals prepared by nickel-titanium (Ni-Ti) hand, Ni-Ti engine-driven, and stainless steel hand endodontic instruments.