下颌骨小梁骨的材料特性。
Material Properties of the Mandibular Trabecular Bone.
作者信息
Lakatos Éva, Magyar Lóránt, Bojtár Imre
机构信息
Department of Structural Mechanics, Budapest University of Technology and Economics, Műegyetem Rakpart 3, Budapest 1111, Hungary.
Department of Forensic Medicine, Semmelweis University, Üllői út 93, Budapest 1091, Hungary.
出版信息
J Med Eng. 2014;2014:470539. doi: 10.1155/2014/470539. Epub 2014 Oct 29.
Abstract
The present paper introduces a numerical simulation aided, experimental method for the measurement of Young's modulus of the trabecular substance in the human mandible. Compression tests were performed on fresh cadaveric samples containing trabecular bone covered with cortical layer, thus avoiding the destruction caused by the sterilization, preservation, and storage and the underestimation of the stiffness resulting from the individual failure of the trabeculae cut on the surfaces. The elastic modulus of the spongiosa was determined by the numerical simulation of each compression test using a specimen specific finite element model of each sample. The received mandibular trabecular bone Young's modulus values ranged from 6.9 to 199.5 MPa.
摘要
本文介绍了一种借助数值模拟的实验方法，用于测量人下颌骨小梁物质的杨氏模量。对含有覆盖皮质层的小梁骨的新鲜尸体样本进行压缩试验，从而避免了灭菌、保存和储存所造成的破坏以及因表面小梁个体失效导致的刚度低估。通过使用每个样本的特定标本有限元模型对每次压缩试验进行数值模拟，确定松质骨的弹性模量。所获得的下颌骨小梁骨杨氏模量值范围为6.9至199.5兆帕。
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