title: Reduction in the modulus of elasticity in orthodontic wires.
abstract: The 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 10(4) MPa (28.0 to 29.0 x 10(6) 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.
mesh_terms: D003461:Crystallography; D004548:Elasticity; D006358:Hot Temperature; D009967:Orthodontic Appliances; D013193:Stainless Steel; D013718:Tensile Strength
chemical_list: D013193:Stainless Steel