Influence of high insertion torque on implant placement: an anisotropic bone stress analysis

Detalhes bibliográficos
Autor(a) principal: Sotto-Maior,Bruno Salles
Data de Publicação: 2010
Outros Autores: Rocha,Eduardo Passos, Almeida,Erika Oliveira de, Freitas-Júnior,Amilcar Chagas, Anchieta,Rodolfo Bruniera, Cury,Altair Antoninha Del Bel
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 (σmax) 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 σmax and εmax values for cortical and cancellous bone. The σmax 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.
id FUNORP-1_e402a9ae3983c2f469006d9d3c72ab7f
oai_identifier_str oai:scielo:S0103-64402010000600005
network_acronym_str FUNORP-1
network_name_str Brazilian Dental Journal
repository_id_str
spelling 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 (σmax) 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 σmax and εmax values for cortical and cancellous bone. The σmax 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 (σmax) 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 σmax and εmax values for cortical and cancellous bone. The σmax 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