Stress distribution in the cervical region of an upper central incisor in a 3D finite element model

Detalhes bibliográficos
Autor(a) principal: Poiate,Isis Andréa Venturini Pola
Data de Publicação: 2009
Outros Autores: Vasconcellos,Adalberto Bastos de, Poiate Junior,Edgard, Dias,Kátia Regina Hostílio Cervantes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000200012
Resumo: The aim of this study was to evaluate the stress distribution in the cervical region of a sound upper central incisor in two clinical situations, standard and maximum masticatory forces, by means of a 3D model with the highest possible level of fidelity to the anatomic dimensions. Two models with 331,887 linear tetrahedral elements that represent a sound upper central incisor with periodontal ligament, cortical and trabecular bones were loaded at 45º in relation to the tooth's long axis. All structures were considered to be homogeneous and isotropic, with the exception of the enamel (anisotropic). A standard masticatory force (100 N) was simulated on one of the models, while on the other one a maximum masticatory force was simulated (235.9 N). The software used were: PATRAN for pre- and post-processing and Nastran for processing. In the cementoenamel junction area, tensile forces reached 14.7 MPa in the 100 N model, and 40.2 MPa in the 235.9 N model, exceeding the enamel's tensile strength (16.7 MPa). The fact that the stress concentration in the amelodentinal junction exceeded the enamel's tensile strength under simulated conditions of maximum masticatory force suggests the possibility of the occurrence of non-carious cervical lesions such as abfractions.
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spelling Stress distribution in the cervical region of an upper central incisor in a 3D finite element modelTooth injuriesTomographyMethodsImaging, three-dimensionalComputing methodologiesThe aim of this study was to evaluate the stress distribution in the cervical region of a sound upper central incisor in two clinical situations, standard and maximum masticatory forces, by means of a 3D model with the highest possible level of fidelity to the anatomic dimensions. Two models with 331,887 linear tetrahedral elements that represent a sound upper central incisor with periodontal ligament, cortical and trabecular bones were loaded at 45º in relation to the tooth's long axis. All structures were considered to be homogeneous and isotropic, with the exception of the enamel (anisotropic). A standard masticatory force (100 N) was simulated on one of the models, while on the other one a maximum masticatory force was simulated (235.9 N). The software used were: PATRAN for pre- and post-processing and Nastran for processing. In the cementoenamel junction area, tensile forces reached 14.7 MPa in the 100 N model, and 40.2 MPa in the 235.9 N model, exceeding the enamel's tensile strength (16.7 MPa). The fact that the stress concentration in the amelodentinal junction exceeded the enamel's tensile strength under simulated conditions of maximum masticatory force suggests the possibility of the occurrence of non-carious cervical lesions such as abfractions.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000200012Brazilian Oral Research v.23 n.2 2009reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242009000200012info:eu-repo/semantics/openAccessPoiate,Isis Andréa Venturini PolaVasconcellos,Adalberto Bastos dePoiate Junior,EdgardDias,Kátia Regina Hostílio Cervanteseng2009-10-20T00:00:00Zoai:scielo:S1806-83242009000200012Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2009-10-20T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
title Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
spellingShingle Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
Poiate,Isis Andréa Venturini Pola
Tooth injuries
Tomography
Methods
Imaging, three-dimensional
Computing methodologies
title_short Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
title_full Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
title_fullStr Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
title_full_unstemmed Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
title_sort Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
author Poiate,Isis Andréa Venturini Pola
author_facet Poiate,Isis Andréa Venturini Pola
Vasconcellos,Adalberto Bastos de
Poiate Junior,Edgard
Dias,Kátia Regina Hostílio Cervantes
author_role author
author2 Vasconcellos,Adalberto Bastos de
Poiate Junior,Edgard
Dias,Kátia Regina Hostílio Cervantes
author2_role author
author
author
dc.contributor.author.fl_str_mv Poiate,Isis Andréa Venturini Pola
Vasconcellos,Adalberto Bastos de
Poiate Junior,Edgard
Dias,Kátia Regina Hostílio Cervantes
dc.subject.por.fl_str_mv Tooth injuries
Tomography
Methods
Imaging, three-dimensional
Computing methodologies
topic Tooth injuries
Tomography
Methods
Imaging, three-dimensional
Computing methodologies
description The aim of this study was to evaluate the stress distribution in the cervical region of a sound upper central incisor in two clinical situations, standard and maximum masticatory forces, by means of a 3D model with the highest possible level of fidelity to the anatomic dimensions. Two models with 331,887 linear tetrahedral elements that represent a sound upper central incisor with periodontal ligament, cortical and trabecular bones were loaded at 45º in relation to the tooth's long axis. All structures were considered to be homogeneous and isotropic, with the exception of the enamel (anisotropic). A standard masticatory force (100 N) was simulated on one of the models, while on the other one a maximum masticatory force was simulated (235.9 N). The software used were: PATRAN for pre- and post-processing and Nastran for processing. In the cementoenamel junction area, tensile forces reached 14.7 MPa in the 100 N model, and 40.2 MPa in the 235.9 N model, exceeding the enamel's tensile strength (16.7 MPa). The fact that the stress concentration in the amelodentinal junction exceeded the enamel's tensile strength under simulated conditions of maximum masticatory force suggests the possibility of the occurrence of non-carious cervical lesions such as abfractions.
publishDate 2009
dc.date.none.fl_str_mv 2009-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000200012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000200012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-83242009000200012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
dc.source.none.fl_str_mv Brazilian Oral Research v.23 n.2 2009
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
instname_str Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron_str SBPQO
institution SBPQO
reponame_str Brazilian Oral Research
collection Brazilian Oral Research
repository.name.fl_str_mv Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
repository.mail.fl_str_mv pob@edu.usp.br||bor@sbpqo.org.br
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