牙本质弹性性质的多尺度细观力学建模。
Multiscale micromechanical modeling of the elastic properties of dentin.
机构信息
Department of Mechanical and Aerospace Engineering, New Mexico State University. Las Cruces, NM, 88003, USA.
Department of Mechanical and Aerospace Engineering, New Mexico State University. Las Cruces, NM, 88003, USA.
出版信息
J Mech Behav Biomed Mater. 2019 Dec;100:103397. doi: 10.1016/j.jmbbm.2019.103397. Epub 2019 Aug 14.
The paper focuses on multiscale modeling of the elastic properties of dentin. It is modeled as a hierarchical structure consisting of collagen fibers and hydroxyapatite particles at the lower level. Different concentrations of hydroxyapatite in this tissue correspond to peritubular and intertubular dentins. Then, the overall material is modeled as intertubular dentin matrix containing parallel cylindrical holes (the tubules) surrounded by layers of peritubular dentin. At each microstructural level, the model accounts for anisotropy of the constituents. The model predictions are compared with experimental data available in literature.
本文侧重于牙本质弹性性质的多尺度建模。它被建模为一种分层结构，由较低层次的胶原纤维和羟磷灰石颗粒组成。该组织中不同浓度的羟磷灰石对应于管周和管间牙本质。然后，整体材料被建模为包含平行圆柱孔（管）的管间牙本质基质，这些孔被管周牙本质层包围。在每个微观结构水平上，该模型考虑了组成物的各向异性。模型预测与文献中可用的实验数据进行了比较。
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