Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible

Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible

Modeling is a step to perform a finite element analysis. Different methods of model construction are reported in literature, as the Bio-CAD modeling. The purpose of this study was to perform a model evaluation and application using two methods of Bio-CAD modeling from human edentulous hemi-mandible...

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Autores principales: Rossi,Ana Cláudia, Freire,Alexandre Rodrigues, Botacin,Paulo Roberto, Caria,Paulo HenriqueFerreira, Prado,Felippe Bevilacqua
Lenguaje:English
Publicado: Sociedad Chilena de Anatomía 2014
Materias:
Computational modeling
Mandible
Finite element analysis
Biomechanics
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300011
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spelling oai:scielo:S0717-950220140003000112015-11-16Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-MandibleRossi,Ana CláudiaFreire,Alexandre RodriguesBotacin,Paulo RobertoCaria,Paulo HenriqueFerreiraPrado,Felippe Bevilacqua Computational modeling Mandible Finite element analysis Biomechanics Modeling is a step to perform a finite element analysis. Different methods of model construction are reported in literature, as the Bio-CAD modeling. The purpose of this study was to perform a model evaluation and application using two methods of Bio-CAD modeling from human edentulous hemi-mandible on the finite element analysis. From CT scans of dried human skull was reconstructed a stereolithographic model. Two methods of modeling were performed: STL conversion approach (Model 1) associated to STL simplification and reverse engineering approach (Model 2). For finite element analysis was used the action of lateral pterygoid muscle as loading condition to assess total displacement (D), equivalent von-Mises stress (VM) and maximum principal stress (MP). Two models presented differences on the geometry regarding surface number (1834 (model 1); 282 (model 2)). Were observed differences in finite element mesh regarding element number (30428 nodes/16683 elements (model 1); 15801 nodes/8410 elements (model 2). D, VM and MP stress areas presented similar distribution in two models. The values were different regarding maximum and minimum values of D (ranging 0­0.511 mm (model 1) and 0­0.544 mm (model 2), VM stress (6.36E-04­11.4 MPa (model 1) and 2.15E-04­14.7 MPa (model 2) and MP stress (-1.43­9.14 MPa (model 1) and -1.2­11.6 MPa (model 2). From two methods of Bio-CAD modeling, the reverse engineering presented better anatomical representation compared to the STL conversion approach. The models presented differences in the finite element mesh, total displacement and stress distribution.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.32 n.3 20142014-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300011en10.4067/S0717-95022014000300011
institution Scielo Chile
collection Scielo Chile
language English
topic Computational modeling
Mandible
Finite element analysis
Biomechanics
spellingShingle Computational modeling
Mandible
Finite element analysis
Biomechanics
Rossi,Ana Cláudia
Freire,Alexandre Rodrigues
Botacin,Paulo Roberto
Caria,Paulo HenriqueFerreira
Prado,Felippe Bevilacqua
Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible
description Modeling is a step to perform a finite element analysis. Different methods of model construction are reported in literature, as the Bio-CAD modeling. The purpose of this study was to perform a model evaluation and application using two methods of Bio-CAD modeling from human edentulous hemi-mandible on the finite element analysis. From CT scans of dried human skull was reconstructed a stereolithographic model. Two methods of modeling were performed: STL conversion approach (Model 1) associated to STL simplification and reverse engineering approach (Model 2). For finite element analysis was used the action of lateral pterygoid muscle as loading condition to assess total displacement (D), equivalent von-Mises stress (VM) and maximum principal stress (MP). Two models presented differences on the geometry regarding surface number (1834 (model 1); 282 (model 2)). Were observed differences in finite element mesh regarding element number (30428 nodes/16683 elements (model 1); 15801 nodes/8410 elements (model 2). D, VM and MP stress areas presented similar distribution in two models. The values were different regarding maximum and minimum values of D (ranging 0­0.511 mm (model 1) and 0­0.544 mm (model 2), VM stress (6.36E-04­11.4 MPa (model 1) and 2.15E-04­14.7 MPa (model 2) and MP stress (-1.43­9.14 MPa (model 1) and -1.2­11.6 MPa (model 2). From two methods of Bio-CAD modeling, the reverse engineering presented better anatomical representation compared to the STL conversion approach. The models presented differences in the finite element mesh, total displacement and stress distribution.
author Rossi,Ana Cláudia
Freire,Alexandre Rodrigues
Botacin,Paulo Roberto
Caria,Paulo HenriqueFerreira
Prado,Felippe Bevilacqua
author_facet Rossi,Ana Cláudia
Freire,Alexandre Rodrigues
Botacin,Paulo Roberto
Caria,Paulo HenriqueFerreira
Prado,Felippe Bevilacqua
author_sort Rossi,Ana Cláudia
title Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible
title_short Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible
title_full Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible
title_fullStr Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible
title_full_unstemmed Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible
title_sort computer graphics applied to anatomy: a study of two bio-cad modeling methods on finite element analysis of human edentulous hemi-mandible
publisher Sociedad Chilena de Anatomía
publishDate 2014
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300011
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