正畸钢丝弹性模量的降低。
Reduction in the modulus of elasticity in orthodontic wires.
作者信息
Goldberg A J, Vanderby R, Burstone C J
出版信息
J Dent Res. 1977 Oct;56(10):1227-31. doi: 10.1177/00220345770560102101.
PMID:272386
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.
摘要
研究发现，不锈钢正畸丝的弹性模量比通常假定的19.3至20.0×10⁴兆帕（28.0至29.0×10⁶磅力/平方英寸）范围低20%。使用后一个值会在正畸器械力学中导致显著的计算误差。较低的模量归因于严重的冷拔。
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