Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density

Detalhes bibliográficos
Autor(a) principal: Correia, André Ricardo
Data de Publicação: 2008
Outros Autores: Piloto, Paulo, Campos, José C. Reis, Vaz, Mário
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista odonto ciência (Online)
Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4248
Resumo: Purpose: To present a methodological procedure to obtain the geometric and discrete models of a human mandible for numerical simulation of the biomechanical behavior of a partially edentulous mandible as a function of cancellous bone density. Methods: A 3D finite element method was used to assess the model of a partially edentulous mandible, Kennedy Class I, with dental implants placed at the region of teeth 33 and 43. The geometric solid model was built from CT-scan images and prototyping. In the discrete model a parametric analysis was performed to analyze the influence of cancellous bone density (25 %, 50 %, 75 %) on the development of mandibular stress and strain during simulation of masticatory forces in the anterior region. Results: Maximum von Mises stress and equivalent strain values in cancellous bone were found close to the loading area (masticatory forces). The peak stress and strain values occurred in the mandibular anterior region, and for the same masticatory force the equivalent stresses increased with bone density. Conclusion: The results suggest that the stresses and strains developed in the mandibular model were affected by cancellous bone density during the simulation of masticatory activity. Key words: Finite element analysis; mandible; stress analysis; mechanical behavior; bone density.
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spelling Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone densityAnálise por elementos finitos do comportamento mecânico de uma mandíbula humana parcialmente edêntula em função da densidade óssea trabecularFinite element analysismandiblestress analysismechanical behaviorbone densityImplantologyBiomechanicsPurpose: To present a methodological procedure to obtain the geometric and discrete models of a human mandible for numerical simulation of the biomechanical behavior of a partially edentulous mandible as a function of cancellous bone density. Methods: A 3D finite element method was used to assess the model of a partially edentulous mandible, Kennedy Class I, with dental implants placed at the region of teeth 33 and 43. The geometric solid model was built from CT-scan images and prototyping. In the discrete model a parametric analysis was performed to analyze the influence of cancellous bone density (25 %, 50 %, 75 %) on the development of mandibular stress and strain during simulation of masticatory forces in the anterior region. Results: Maximum von Mises stress and equivalent strain values in cancellous bone were found close to the loading area (masticatory forces). The peak stress and strain values occurred in the mandibular anterior region, and for the same masticatory force the equivalent stresses increased with bone density. Conclusion: The results suggest that the stresses and strains developed in the mandibular model were affected by cancellous bone density during the simulation of masticatory activity. Key words: Finite element analysis; mandible; stress analysis; mechanical behavior; bone density.Objetivo: Apresentar uma metodologia para modelamento geométrico de uma mandíbula humana e obtenção de um modelo discreto para simular numericamente o comportamento biomecânico de uma mandíbula parcialmente edêntula em função de diferentes densidades do osso trabecular. Metodologia: Utilizou-se o método de elementos finitos 3D para realizar um estudo numérico sobre um modelo de mandíbula humana, desdentada parcial tipo Classe I de Kennedy, com implantes nas regiões dos dentes 33 e 43. O modelo sólido geométrico foi determinado por tomografia computorizada e prototipagem. No modelo discretizado foi realizada uma análise paramétrica para verificar a influência da densidade óssea do osso trabecular (25 %, 50 %, 75 %) no desenvolvimento de tensões e deformações da mandíbula durante a aplicação de forças mastigatórias na região anterior. Resultados: As tensões máximas de von Mises e deformações equivalentes no osso trabecular foram desenvolvidas próximo às regiões de aplicação das forças de mordida. Os picos de valores de tensões/deformações localizaram-se na região anterior da mandíbula, sendo que, para o mesmo valor de esforço de mordida, as tensões equivalentes aumentaram com a densidade óssea. Conclusão: Os resultados sugerem que as tensões e deformações desenvolvidas no modelo mandibular testado foram afetadas pelo grau de densidade do osso trabecular durante simulação de atividade mastigatória. Palavras-chave: Análise por elementos finitos; mandíbula; análise de tensões; comportamento mecânico; densidade ósseaEDIPUCRS - Editora Universitária da PUCRS2008-12-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articlefinite element analysisapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4248Revista Odonto Ciência; Vol. 24 No. 1 (2009); 22 - 27Revista Odonto Ciência; v. 24 n. 1 (2009); 22 - 271980-65230102-9460reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4248/3663Correia, André RicardoPiloto, PauloCampos, José C. ReisVaz, Márioinfo:eu-repo/semantics/openAccess2013-11-11T13:23:39Zoai:ojs.revistaseletronicas.pucrs.br:article/4248Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-11T13:23:39Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
Análise por elementos finitos do comportamento mecânico de uma mandíbula humana parcialmente edêntula em função da densidade óssea trabecular
title Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
spellingShingle Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
Correia, André Ricardo
Finite element analysis
mandible
stress analysis
mechanical behavior
bone density
Implantology
Biomechanics
title_short Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
title_full Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
title_fullStr Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
title_full_unstemmed Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
title_sort Finite element analysis of the mechanical behavior of a partially edentulous mandible as a function of cancellous bone density
author Correia, André Ricardo
author_facet Correia, André Ricardo
Piloto, Paulo
Campos, José C. Reis
Vaz, Mário
author_role author
author2 Piloto, Paulo
Campos, José C. Reis
Vaz, Mário
author2_role author
author
author
dc.contributor.author.fl_str_mv Correia, André Ricardo
Piloto, Paulo
Campos, José C. Reis
Vaz, Mário
dc.subject.por.fl_str_mv Finite element analysis
mandible
stress analysis
mechanical behavior
bone density
Implantology
Biomechanics
topic Finite element analysis
mandible
stress analysis
mechanical behavior
bone density
Implantology
Biomechanics
description Purpose: To present a methodological procedure to obtain the geometric and discrete models of a human mandible for numerical simulation of the biomechanical behavior of a partially edentulous mandible as a function of cancellous bone density. Methods: A 3D finite element method was used to assess the model of a partially edentulous mandible, Kennedy Class I, with dental implants placed at the region of teeth 33 and 43. The geometric solid model was built from CT-scan images and prototyping. In the discrete model a parametric analysis was performed to analyze the influence of cancellous bone density (25 %, 50 %, 75 %) on the development of mandibular stress and strain during simulation of masticatory forces in the anterior region. Results: Maximum von Mises stress and equivalent strain values in cancellous bone were found close to the loading area (masticatory forces). The peak stress and strain values occurred in the mandibular anterior region, and for the same masticatory force the equivalent stresses increased with bone density. Conclusion: The results suggest that the stresses and strains developed in the mandibular model were affected by cancellous bone density during the simulation of masticatory activity. Key words: Finite element analysis; mandible; stress analysis; mechanical behavior; bone density.
publishDate 2008
dc.date.none.fl_str_mv 2008-12-11
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
finite element analysis
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4248
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4248
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4248/3663
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
dc.source.none.fl_str_mv Revista Odonto Ciência; Vol. 24 No. 1 (2009); 22 - 27
Revista Odonto Ciência; v. 24 n. 1 (2009); 22 - 27
1980-6523
0102-9460
reponame:Revista odonto ciência (Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Revista odonto ciência (Online)
collection Revista odonto ciência (Online)
repository.name.fl_str_mv Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv ||odontociencia@pucrs.br
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