Superelasticity and force plateau of nickel-titanium springs: an in vitro study
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چکیده
منابع مشابه
Superelasticity and force plateau of nickel-titanium springs: an in vitro study
OBJECTIVE This paper analyzed whether nickel-titanium closed coil springs (NTCCS) have a different superelastic (SE) behavior according to activation and whether their force plateau corresponds to that informed by the manufacturer. METHODS A total of 160 springs were divided into 16 subgroups according to their features and activated proportionally to the length of the extensible part (NiTi) ...
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INTRODUCTION The objective of this study was to quantify the properties of commercially available nickel-titanium open-coil springs. METHODS Eleven springs from 3 manufacturers were tested 5 times over a 12-week period. A universal testing machine was used to measure the force generated when open-coil springs were compressed to half of their original length and then gradually allowed to decom...
متن کاملDeformation of nickel-titanium closed coil springs: an in vitro study
OBJECTIVE The aim of this paper was to determine the amount of deformation in four commercial brands of nickel-titanium closed springs. METHODS A total of 130 springs were divided into 13 subgroups, according to their features and manufacturers (Morelli, Orthometric, Ormco and GAC) and activated from 100% to 1000% of the effective length of the nickel-titanium portion present at the spring, a...
متن کاملforce characteristics of nickel titanium closed coil springs (3m, gac, rmo)
introduction the aim of this study was to compare the characteristics of deflection load of three kinds of nickel titanium closed coil springs. methods and materials this research was an experimental study. research sample contains three kinds of niti closed coiled springs (heavy, medium, light) from gac, 3m, and rmo factories. 10 springs with 9 mm length for each group (totally 90 springs) wer...
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the commonly used nickel-titanium (niti) archwires in orthodontic treatment are often exposed to fluoride-containing mouthwashes. the aim of this in-vitro study was to evaluate and compare the corrosion resistance of three commercially available niti archwires exposed to 0.05 wt% and 0.2 wt% fluoride mouthwashes.three different types of niti archwires, 0.016″ in diameter, from dentaurum, global...
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ژورنال
عنوان ژورنال: Dental Press Journal of Orthodontics
سال: 2016
ISSN: 2176-9451
DOI: 10.1590/2177-6709.21.3.046-055.oar