Influence of high insertion torque on implant placement: an anisotropic bone stress analysis
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402010000600005 |
Resumo: | The aim of this study was to evaluate the influence of the high values of insertion torques on the stress and strain distribution in cortical and cancellous bones. Based on tomography imaging, a representative mathematical model of a partial maxilla was built using Mimics 11.11 and Solid Works 2010 softwares. Six models were built and each of them received an implant with one of the following insertion torques: 30, 40, 50, 60, 70 or 80 Ncm on the external hexagon. The cortical and cancellous bones were considered anisotropic. The bone/implant interface was considered perfectly bonded. The numerical analysis was carried out using Ansys Workbench 10.0. The convergence of analysis (6%) drove the mesh refinement. Maximum principal stress (Ïmax) and maximum principal strain (εmax) were obtained for cortical and cancellous bones around to implant. Pearson's correlation test was used to determine the correlation between insertion torque and stress concentration in the periimplant bone tissue, considering the significance level at 5%. The increase in the insertion torque generated an increase in the Ïmax and εmax values for cortical and cancellous bone. The Ïmax was smaller for the cancellous bone, with greater stress variation among the insertion torques. The εmax was higher in the cancellous bone in comparison to the cortical bone. According to the methodology used and the limits of this study, it can be concluded that higher insertion torques increased tensile and compressive stress concentrations in the periimplant bone tissue. |
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Influence of high insertion torque on implant placement: an anisotropic bone stress analysisdental implantsinsertion torquefinite element methodThe aim of this study was to evaluate the influence of the high values of insertion torques on the stress and strain distribution in cortical and cancellous bones. Based on tomography imaging, a representative mathematical model of a partial maxilla was built using Mimics 11.11 and Solid Works 2010 softwares. Six models were built and each of them received an implant with one of the following insertion torques: 30, 40, 50, 60, 70 or 80 Ncm on the external hexagon. The cortical and cancellous bones were considered anisotropic. The bone/implant interface was considered perfectly bonded. The numerical analysis was carried out using Ansys Workbench 10.0. The convergence of analysis (6%) drove the mesh refinement. Maximum principal stress (Ïmax) and maximum principal strain (εmax) were obtained for cortical and cancellous bones around to implant. Pearson's correlation test was used to determine the correlation between insertion torque and stress concentration in the periimplant bone tissue, considering the significance level at 5%. The increase in the insertion torque generated an increase in the Ïmax and εmax values for cortical and cancellous bone. The Ïmax was smaller for the cancellous bone, with greater stress variation among the insertion torques. The εmax was higher in the cancellous bone in comparison to the cortical bone. According to the methodology used and the limits of this study, it can be concluded that higher insertion torques increased tensile and compressive stress concentrations in the periimplant bone tissue.Fundação Odontológica de Ribeirão Preto2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402010000600005Brazilian Dental Journal v.21 n.6 2010reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402010000600005info:eu-repo/semantics/openAccessSotto-Maior,Bruno SallesRocha,Eduardo PassosAlmeida,Erika Oliveira deFreitas-Júnior,Amilcar ChagasAnchieta,Rodolfo BrunieraCury,Altair Antoninha Del Beleng2011-01-17T00:00:00Zoai:scielo:S0103-64402010000600005Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2011-01-17T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
title |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
spellingShingle |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis Sotto-Maior,Bruno Salles dental implants insertion torque finite element method |
title_short |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
title_full |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
title_fullStr |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
title_full_unstemmed |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
title_sort |
Influence of high insertion torque on implant placement: an anisotropic bone stress analysis |
author |
Sotto-Maior,Bruno Salles |
author_facet |
Sotto-Maior,Bruno Salles Rocha,Eduardo Passos Almeida,Erika Oliveira de Freitas-Júnior,Amilcar Chagas Anchieta,Rodolfo Bruniera Cury,Altair Antoninha Del Bel |
author_role |
author |
author2 |
Rocha,Eduardo Passos Almeida,Erika Oliveira de Freitas-Júnior,Amilcar Chagas Anchieta,Rodolfo Bruniera Cury,Altair Antoninha Del Bel |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Sotto-Maior,Bruno Salles Rocha,Eduardo Passos Almeida,Erika Oliveira de Freitas-Júnior,Amilcar Chagas Anchieta,Rodolfo Bruniera Cury,Altair Antoninha Del Bel |
dc.subject.por.fl_str_mv |
dental implants insertion torque finite element method |
topic |
dental implants insertion torque finite element method |
description |
The aim of this study was to evaluate the influence of the high values of insertion torques on the stress and strain distribution in cortical and cancellous bones. Based on tomography imaging, a representative mathematical model of a partial maxilla was built using Mimics 11.11 and Solid Works 2010 softwares. Six models were built and each of them received an implant with one of the following insertion torques: 30, 40, 50, 60, 70 or 80 Ncm on the external hexagon. The cortical and cancellous bones were considered anisotropic. The bone/implant interface was considered perfectly bonded. The numerical analysis was carried out using Ansys Workbench 10.0. The convergence of analysis (6%) drove the mesh refinement. Maximum principal stress (Ïmax) and maximum principal strain (εmax) were obtained for cortical and cancellous bones around to implant. Pearson's correlation test was used to determine the correlation between insertion torque and stress concentration in the periimplant bone tissue, considering the significance level at 5%. The increase in the insertion torque generated an increase in the Ïmax and εmax values for cortical and cancellous bone. The Ïmax was smaller for the cancellous bone, with greater stress variation among the insertion torques. The εmax was higher in the cancellous bone in comparison to the cortical bone. According to the methodology used and the limits of this study, it can be concluded that higher insertion torques increased tensile and compressive stress concentrations in the periimplant bone tissue. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 |
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=S0103-64402010000600005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402010000600005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-64402010000600005 |
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 |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
Brazilian Dental Journal v.21 n.6 2010 reponame:Brazilian Dental Journal instname:Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
instname_str |
Fundação Odontológica de Ribeirão Preto (FUNORP) |
instacron_str |
FUNORP |
institution |
FUNORP |
reponame_str |
Brazilian Dental Journal |
collection |
Brazilian Dental Journal |
repository.name.fl_str_mv |
Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP) |
repository.mail.fl_str_mv |
bdj@forp.usp.br||sergio@fosjc.unesp.br |
_version_ |
1754204091421032448 |