搜索结果: 1-12 共查到“口腔正畸学 Nickel titanium”相关记录12条 . 查询时间(0.078 秒)
Force Characteristics of Nickel Titanium Closed Coil Springs（3M, GAC, RMO）
NiTi Closed Coil Springs Force Characteristics
2009/4/2
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 experiment...
The effect of long-term deflection on permanent deformation of Nickel-Titanium archwires
Orthodontic wires Nitinol Spring back Permanent deformation Stress-relaxation
2009/1/23
The clinician must now consider the alloy along with cross-sectional shape and size when selecting archwires. The purpose of this study is to quantify permanent deformation after long-term deflect...
Nickel-titanium spring properties in a simulated oral environment
Nickel-Titanium Spring Mechanics
2009/1/12
A study of nickel-titanium springs was undertaken to determine whether their mechanical properties are affected by prolonged exposure to a static, simulated oral environment. Stainless steel springs...
Repelling magnets versus superelastic nickel-titanium coils in simultaneous distal movement of maxillary first and second molars
Dental alloys Magnetics Supercoils Force Orthodontic appliance Molar Tooth movement
2009/1/12
Eighteen subjects, aged 12.5 to 18.3 years, with Class II malocclusion, deep overbite and moderate space deficiency in the maxilla were treated orthodontically using repelling rare earth magnets on on...
Comparisons of the thermodynamic properties of three nickel-titanium orthodontic archwires
Thermodynamic archwires Nitinol Recovery TTR
2009/1/12
The unique memory property of thermodynamic wire is only partially understood. It is believed to result from the wire's inherent capability to markedly alter its atomic bonding forces as a function of...
The effect of short-term temperature changes on the mechanical properties of rectangular nickel titanium archwires tested in torsion
Orthodontic archwires Materials testing Torsional stiffness Nickel titanium alloys
2009/1/8
Due to their exceptional temperature sensitivity, superelastic nickel titanium wires may be affected by temperature changes associated with ingestion of cold or hot food. It has been assumed that th...
The effect of temperature on the elastic responses to longitudinal torsion of rectangular nickel titanium archwires
Archwires Materials testing Torsional stiffness Nickel titanium alloys Copper nickel titanium alloys Superelasticity
2009/1/8
To investigate responses to longitudinal torsion and the effect of temperature on the torsional stiffness of superelastic nickel titanium archwires, eight batches of rectangular wires were tested at...
Corrosion of stainless steel, nickel-titanium, coated nickel-titanium, and titanium orthodontic wires
Corrosion Potentiostatic anodic polarization Orthodontic wires
2009/1/4
Orthodontic wires containing nickel have been implicated in allergic reactions. The potential for orthodontic wires to cause allergic reactions is related to the pattern and mode of corrosion with...
Elastic Flexural Properties of Multistranded Stainless Steel Versus Conventional Nickel Titanium Archwires
Archwires Elastic properties Multistranded Stainless steel Nickel titanium
2008/12/26
Based on a recent investigation that modeled the elastic properties (ie, strength, stiffness and range) of multistranded wires made from linearly elastic materials, three-stranded (triple) and six...
Variation in Corrosion Resistance of Nickel-Titanium Wires from Different Manufacturers
NiTi Orthodontic wire Corrosion resistance Polarization resistance Roughness
2008/12/1
Nickel-titanium (NiTi) wires produced by various manufacturers may have different corrosion resistance in acidic oral environments. The purpose of this study was to investigate the variation during ...
Thermal Analysis of As-received and Clinically Retrieved Copper-nickel-titanium Orthodontic Archwires
Thermal analysis DSC Copper-nickel-titanium Archwires
2008/11/5
Objective: To compare as-received copper-nickel-titanium (CuNiTi) archwires to those used in patients by means of differential scanning calorimetry (DSC). Also, the thermal or phase properties of 27°C...
Galvanic Corrosion of Metal Injection Molded (MIM) and Conventional Brackets with Nickel-Titanium and Copper;chNickel-Titanium Archwires
Brackets MIM Galvanic corrosion
2008/11/4
Objective: To compare the galvanic coupling of conventional and metal injection molded (MIM) brackets with commonly used orthodontic archwires.Materials and Methods: Six of each type of bracket were s...