Results 31 to 40 of about 1,807,800 (145)

CYCLIC FATIGUE RESISTANCE OF CONTINUOUS ROTATION VERSUS RECIPROCATING GLIDE PATH NICKEL TITANIUM FILES IN ARTIFICIAL S-SHAPED CANALS [PDF]

open access: yesAlexandria Dental Journal, 2022
Introduction: A secure reproducible glide path is an essential prerequisite for introducing “Rotary nickel titanium” files into a canal. With the rise of engine driven instruments over the past decade, the creation of a Glide path “GP” using “Rotary ...
Amr Abdallah   +2 more
doaj   +1 more source

FATIGUE FAILURE OF NICKEL-TITANIUM INSTRUMENTS IN ENDODONTICS AND ITS INFLUENCING FACTORS

open access: yes, 2022
Introduction and aim: The fracture of Ni-Ti instruments is a complication that most dentists will sooner or later encounter in the dental office. There are mainly two basic mechanisms behind it and these are exceeding the cyclic fatigue limit, exceeding ...
J Staněk   +6 more
core   +1 more source

Heat Treatment and Surface Treatment of Nickel–Titanium Endodontic Instruments

open access: yesFrontiers in Dental Medicine, 2021
Knowledge and thorough understanding of the characteristics of endodontic nickel–titanium (NiTi) files is paramount for dentists performing root canal treatments to patients.
Sang Won Kwak   +7 more
doaj   +1 more source

Effects of sodium hypochlorite on nickel-titanium Lightspeed instruments.

open access: yes, 1998
Sodium hypochlorite is a major irrigant in endodontics, and nickel-titanium instruments are gaining in popularity. This paper investigated the corrosion of nickel-titanium Lightspeed instruments in 1% and 5% NaOCl solutions. The instruments were immersed
Barbakow F, Sener B, Busslinger A
core   +1 more source

Elevated Temperature Oxidation and Corrosion of a Titanium Aluminide Alloy [PDF]

open access: yes, 1997
Titanium aluminides are being developed to expand the temperature capability of titanium alloys with maximum service temperatures around 700*C. These materials also have the ability to replace nickel superalloys with potential applications in the high ...
Leggett, Jonathan
core   +5 more sources

Torsional fatigue profiles of ProTaper nickel-titanium rotary instruments [PDF]

open access: yes, 2008
The torsional fatigue profiles of the original ProTaper ® F2, F3 and ProTaper® Universal F2, F3, F4, F5 nickel-titanium rotary instruments were determined using a reversible geared motor assembled according a modification of ANSI/ADA Specification No. 28.
Chan, Gregory M
core   +1 more source

Effect of autoclaving on the surfaces of TiN -coated and conventional nickel-titanium rotary instruments

open access: yes, 2012
Aim: To evaluate the effects of repeated autoclave sterilization cycles on surface topography of conventional nickel-titanium (NiTi) and titanium nitride (TiN)-coated rotary instruments.
Riccitiello F   +13 more
core   +1 more source

Quantitative and qualitative elemental analysis of different nickel-titanium rotary instruments by using scanning electron microscopy and energy dispersive spectroscopy

open access: yes, 2008
This study was designed to determine if the alloy composition shares an influence with the geometric design on the physical behavior of nickel-titanium rotary endodontic instruments. ProTaper, HERO, and K3 files were selected.
AL-SHALAN T.   +9 more
core   +2 more sources

Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments

open access: yesBrazilian Journal of Oral Sciences, 2019
Aim: The aim of present study was to evaluate if the cross-section and the number of use have influence in cyclic fatigue resistance of rotary files.
Luís César Brisighello   +4 more
doaj   +1 more source

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

open access: yesApplied Sciences, 2020
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.
Gianluca Gambarini   +6 more
doaj   +1 more source

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