Stress distribution in the cervical region of an upper central incisor in a 3D finite element model
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
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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Brazilian Oral Research |
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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 |
_version_ |
1750318321629134848 |