Mechanical behavior of deep cryogenically treated martensitic shape memory nickel–titanium rotary endodontic instruments
نویسندگان
چکیده
منابع مشابه
Nanotribological behavior of deep cryogenically treated martensitic stainless steel
Cryogenic treatments are increasingly used to improve the wear resistance of various steel alloys by means of transformation of retained austenite, deformation of virgin martensite and carbide refinement. In this work the nanotribological behavior and mechanical properties at the nano-scale of cryogenically and conventionally treated AISI 420 martensitic stainless steel were evaluated. Conventi...
متن کاملAn overview of the mechanical properties of nickeltitanium endodontic instruments
Differences in mechanical properties between endodontic instruments might be related to the chemical composition, phase constitution, or fabrication process of nickel–titanium (NiTi) endodontic instruments. An awareness and knowledge of the mechanical properties of NiTi endodontic files and their association with the metallurgical properties is useful for clinicians to understand the behavior o...
متن کاملSize Independent Shape Memory Behavior of NickelTitanium
While shape memory alloys such as NiTi have strong potential as active materials in many small-scale applications, much is still unknown about their shape memory and deformation behavior as size scale is reduced. This paper reports on two sets of experiments which shed light onto an inconsistent body of research regarding the behavior of NiTi at the nanoto microscale. In situ SEM pillar bending...
متن کاملMechanical behaviour of nickel-titanium rotary endodontic instruments in simulated clinical conditions: a computational study.
AIM To develop an accurate finite element (FE) model for studying rotary endodontic instruments and to demonstrate the usefulness of the FE method in improving the knowledge of the mechanical behaviour of these instruments during root canal preparation. METHODOLOGY An accurate geometrical model of a Ni-Ti ProTaper F1 instrument was created. The interaction between the rotating instrument and ...
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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ژورنال
عنوان ژورنال: European Journal of Dentistry
سال: 2016
ISSN: 1305-7456,1305-7464
DOI: 10.4103/1305-7456.178314