A critical appraisal of studies on cyclic fatigue resistance of engine‐driven endodontic instruments
نویسندگان
چکیده
منابع مشابه
Cyclic fatigue testing of nickel-titanium endodontic instruments.
Cyclic fatigue of nickel-titanium, engine-driven instruments was studied by determining the effect of canal curvature and operating speed on the breakage of Lightspeed instruments. A new method of canal curvature evaluation that addressed both angle and abruptness of curvature was introduced. Canal curvature was simulated by constructing six curved stainless-steel guide tubes with angles of cur...
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Studies of human growth throughout Iran since 1966 have been surveyed critically. Only 32 papers and 15 research reports on this very crucial issue have been published or compiled so far, most of them on Tehran and Shiraz, which is negligible in comparison with American or European and even some African and Asian studies. Though measurements of height and weight naturally predominate, arm ...
متن کاملEffect of Deep Cryogenic Treatment on Cyclic Fatigue of Endodontic Rotary Nickel Titanium Instruments
INTRODUCTION Cyclic fatigue is the common reason for breakage of rotary instruments. This study was conducted to evaluate the effect of cryogenic treatment (CT) in improving the resistance to cyclic fatigue of endodontic rotary instruments. METHODS AND MATERIALS In this in vitro study, 20 RaCe and 20 Mtwo files were randomly divided into two groups of negative control and CT. CT files were st...
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Decisions in healthcare should be based on information obtained according to the principles of Evidence-Based Medicine (EBM). An increasing number of systematic reviews are published which summarize the results of prevalence studies. Interpretation of the results of these reviews should be accompanied by an appraisal of the methodological quality of the included data and studies. The critical a...
متن کاملApplication of nondestructive testing in cyclic fatigue evaluation of endodontic Ni-Ti rotary instruments.
The purpose of this study was to investigate the application of nondestructive testing in cyclic fatigue evaluation of endodontic ProFile nickel-titanium (NiTi) rotary instruments. As-received ProFile instruments were made to rotate freely in sloped metal blocks by a contra-angle handpiece mounted on a testing machine. Rotation was interrupted periodically, and the instrument removed and engage...
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ژورنال
عنوان ژورنال: International Endodontic Journal
سال: 2019
ISSN: 0143-2885,1365-2591
DOI: 10.1111/iej.13182