Results 211 to 220 of about 569,391 (238)
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Noncontact microstrain measurements in orthodontic wires
Journal of Biomedical Materials Research, 1995AbstractA technique is presented that allows for highly sensitive and highly accurate measurements of microstrain in biomaterials. It is particularly useful for measuring strains in materials where the use of conventional extensometers or strain gauges is impracticable, such as in reinforcement fibers and orthodontic wires and in hostile environments ...
Donald D. Duncan, Sean J. Kirkpatrick
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A rationale for the selection of orthodontic wires
The European Journal of Orthodontics, 1992A logical basis for the sequence of wires chosen during orthodontic treatment with fixed appliances is presented. This utilizes a new more realistic model for the radial deflection of a segment of the archwire in which the wire is restrained by the ligatures on the misaligned tooth, contacts the inner edges of the brackets either side, and is ...
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Bending Deformation Studies of Orthodontic Wires
Journal of Dental Research, 1978Bending deformation has been measured for orthodontic wires ranging in diameter from .010 to .051 inch. Results establish a revised expression for Young's modulus and show that either the stiffness tester or the torque meter will yield essentially the same measured values of bending properties. The dependence of test span length in determining Young's
William A. Brantley +3 more
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Analysis of orthodontic wire springback to simplify wire bending
Orthodontic Waves, 2020Purpose: This study aims to analyse the springback behaviour of commercial orthodontic wires.Materials and methods: The relationship between the predetermined bending angle (x) and the obtained ben...
Hiroshi Kono, Masafumi Kikuchi
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The Flexure Modulus of Elasticity of Orthodontic Wires
Journal of Dental Research, 1983The flexure moduli of elasticity of solid and multi-stranded orthodontic wires were determined. Results for the solid wires approximated their tensile values, but the differences were statistically significant for the stainless steel, chromium-cobalt-nickel, and nickel-titanium alloys. The flexure moduli of the multi-stranded wires ranged from 0.89 to
C.J. Burstone, A.J. Goldberg, J. Morton
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Corrosion of silver soldered orthodontic wires
Acta Odontologica Scandinavica, 1982The amounts of metals liberated from silver soldered stainless steel and cobalt-chromium orthodontic wires were measured. Measurements were taken after 3 days and 24 days immersion in 0.9% sodium chloride solution. High amounts of copper and zinc and some cadmium from the silver solder were found.
Morten Berge +2 more
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Reduction in the Modulus of Elasticity in Orthodontic Wires
Journal of Dental Research, 1977The modulus of elasticity of stainless steel orthodontic wires was found to be 20% below the normally assumed range of 19.3 to 20.0 X 104 MPa (28.0 to 29.0 × 106 psi). Use of the latter value can result in significant computational errors in orthodontic applicance mechanics. The lower modulus was attributed to severe cold drawing.
Ray Vanderby +2 more
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Surface topography, hardness, and frictional properties of GFRP for esthetic orthodontic wires.
Journal of Biomedical Materials Research. Part B - Applied biomaterials, 2016In our previous study, glass-fiber-reinforced plastics (GFRPs) made from polycarbonate and glass fiber for esthetic orthodontic wires were prepared by using pultrusion. The purpose of the present study was to investigate the surface topography, hardness,
Toshihiro Inami +5 more
semanticscholar +1 more source
[Super-elastic wire used in orthodontics].
Mondo ortodontico, 1990The Authors describe the unusual super-elastic property of the Japanese NiTi alloy wire. They examine the clinical applications in relation to the relatively constant force delivered during the deactivation and in relation to the new possibility to shape wire which are offered by the Archmate Wire Bender.
LAINO, ALBERTO +2 more
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Bonded orthodontic retainers: The wire-composite interface
American Journal of Orthodontics and Dentofacial Orthopedics, 1997The bonded orthodontic retainer constructed from multistrand wire and composite is an efficient esthetic retainer, which can be maintained long-term. Clinical failures of bonded orthodontic retainers, most commonly at the wire/composite interface, have been reported. This in vitro investigation aimed to evaluate selected multistrand wires and composite
Bearn, David R. +3 more
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