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Micromechanics‐Supported Conversion of Computer Tomographic (CT) Images into Anisotropic and Inhomogeneous Finite Element Models of Organs: the Case of a Human Mandible
Author(s) -
Hellmich Christian,
Kober Cornelia
Publication year - 2006
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200610019
Subject(s) - anisotropy , finite element method , micromechanics , distribution (mathematics) , mandible (arthropod mouthpart) , voxel , premolar , tomography , tomographic reconstruction , attenuation , materials science , computed tomographic , basis (linear algebra) , physics , geometry , mathematics , mathematical analysis , orthodontics , optics , computer science , computed tomography , medicine , composite material , radiology , biology , molar , artificial intelligence , composite number , genus , thermodynamics , botany
We here present a strategy for reliable prediction of elastic properties from X‐ray attenuation coefficients visualized in Computer Tomographic images, as basis for Finite Element models. By example, we show the distribution of the axial normal stress throughout a human mandible, due to a bite on the leftmost premolar. Remarkably, this distribution is not heavily altered if we replace the inhomogeneous material distribution by one discerning merely cortical and trabecular bone, but it is strongly affected by the consideration of material anisotropy. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)