Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , |
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/28877 |
Resumo: | OBJECTIVE: This 3-D FEA study compared the stress distribution in two-implant mandibular overdentures as a function of implant position and attachment system (LA: locator attachment vs. BA: ball attachment).METHODS: Four models of mandibular overdentures were tested: M1-LA – with implants at the canine regions (standard implant position) and LA; M2-LA – with implants placed at the first premolar regions (distalized implant position) and LA; M1-BA – with standard implant position and BA; and M2-BA – with distalized implant position and BA. The geometric models were converted into finite element models. A 100 N axial load was applied at the first molar region. The von-Mises stress distribution was compared in selected points.RESULTS: The models with BA had pattern of stress distribution was more uniform along the implant axis than the ones with LA, although the stress magnitude was larger. The largest area of von Mises stresses on the alveolar ridge was in the models with standard implant distribution.CONCLUSION: The findings showed that the models with BA had better biomechanical behavior than the ones with LA. For both types of attachment, the models with increased inter-implant distance presented a smaller area of stress distribution in the perimplant cortical bone tissue than the standard implant position. |
id |
PUC_RS-22_acf820352cc29dbc783c357d8e8a6daa |
---|---|
oai_identifier_str |
oai:ojs.revistaseletronicas.pucrs.br:article/28877 |
network_acronym_str |
PUC_RS-22 |
network_name_str |
Revista odonto ciência (Online) |
repository_id_str |
|
spelling |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment typesAnálise de elementos finitos em 3D de sobredentaduras mandibulares com diferentes posições de implante e tipos de encaixedental implantsimplant-supported overdenturebiomechanicsfinite element analysis.implantes dentáriossobredentadura sobre implantesbiomecânicaanálise de elementos finitos.OBJECTIVE: This 3-D FEA study compared the stress distribution in two-implant mandibular overdentures as a function of implant position and attachment system (LA: locator attachment vs. BA: ball attachment).METHODS: Four models of mandibular overdentures were tested: M1-LA – with implants at the canine regions (standard implant position) and LA; M2-LA – with implants placed at the first premolar regions (distalized implant position) and LA; M1-BA – with standard implant position and BA; and M2-BA – with distalized implant position and BA. The geometric models were converted into finite element models. A 100 N axial load was applied at the first molar region. The von-Mises stress distribution was compared in selected points.RESULTS: The models with BA had pattern of stress distribution was more uniform along the implant axis than the ones with LA, although the stress magnitude was larger. The largest area of von Mises stresses on the alveolar ridge was in the models with standard implant distribution.CONCLUSION: The findings showed that the models with BA had better biomechanical behavior than the ones with LA. For both types of attachment, the models with increased inter-implant distance presented a smaller area of stress distribution in the perimplant cortical bone tissue than the standard implant position. OBJETIVO: Este estudo de análise de elementos finitos em 3-D comparou a distribuição de tensão em sobredentaduras suportadas por implante em função da posição do implante e do sistema de encaixe (AA: tipo “locator” vs. BA: tipo “bola”)METODOLOGIA: Foram testados quatro modelos 3-D de sobredentadura com implante mandibular: M1-LA – com implantes nas regiões dos dentes caninos (posição padrão dos implantes) e LA; M2-LA – com implantes nas regiões dos dentes primeiros pré-molares (posição distalizada dos implantes) e LA; M1-BA – com posição padrão de implante e BA; e M2-BA – com posição distalizada dos implantes e BA. Os modelos geométricos foram convertidos em modelos de elementos finitos. Uma carga axial de 100 N foi aplicada na primeira região molar. A distribuição de estresses von Mises foi comparada em pontos selecionados.RESULTADOS: Os modelos com BA apresentaram padrão de distribuição de estresse mais uniforme ao longo do eixo do implante do que os modelos com LA, embora a magnitude do estresse tenha sido maior. A maior área de tensões no rebordo alveolar ocorreu nos modelos com posição padrão de implantes.CONCLUSÃO: Os resultados sugerem que os modelos com BA apresentaram melhor comportamento biomecânico do que aqueles com LA. Para ambos os encaixes, implantes distalizados apresentam uma menor área de distribuição de estresse no tecido ósseo cortical do que posicionamento padrão dos implantes.EDIPUCRS - Editora Universitária da PUCRS2018-07-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2887710.15448/1980-6523.2017.4.28877Revista Odonto Ciência; Vol. 32 No. 4 (2017); 185-192Revista Odonto Ciência; v. 32 n. 4 (2017); 185-1921980-65230102-946010.15448/1980-6523.2017.4reponame: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/28877/17010Copyright (c) 2018 Revista Odonto Ciênciainfo:eu-repo/semantics/openAccessBroilo, Josué RicardoSartori, Evandro AfonsoMariano, Luiz Oscar HonoratoCorso, LeandroShinkai, Rosemary Sadami Arai2018-07-25T17:43:17Zoai:ojs.revistaseletronicas.pucrs.br:article/28877Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2018-07-25T17:43:17Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.none.fl_str_mv |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types Análise de elementos finitos em 3D de sobredentaduras mandibulares com diferentes posições de implante e tipos de encaixe |
title |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types |
spellingShingle |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types Broilo, Josué Ricardo dental implants implant-supported overdenture biomechanics finite element analysis. implantes dentários sobredentadura sobre implantes biomecânica análise de elementos finitos. |
title_short |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types |
title_full |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types |
title_fullStr |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types |
title_full_unstemmed |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types |
title_sort |
Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types |
author |
Broilo, Josué Ricardo |
author_facet |
Broilo, Josué Ricardo Sartori, Evandro Afonso Mariano, Luiz Oscar Honorato Corso, Leandro Shinkai, Rosemary Sadami Arai |
author_role |
author |
author2 |
Sartori, Evandro Afonso Mariano, Luiz Oscar Honorato Corso, Leandro Shinkai, Rosemary Sadami Arai |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Broilo, Josué Ricardo Sartori, Evandro Afonso Mariano, Luiz Oscar Honorato Corso, Leandro Shinkai, Rosemary Sadami Arai |
dc.subject.por.fl_str_mv |
dental implants implant-supported overdenture biomechanics finite element analysis. implantes dentários sobredentadura sobre implantes biomecânica análise de elementos finitos. |
topic |
dental implants implant-supported overdenture biomechanics finite element analysis. implantes dentários sobredentadura sobre implantes biomecânica análise de elementos finitos. |
description |
OBJECTIVE: This 3-D FEA study compared the stress distribution in two-implant mandibular overdentures as a function of implant position and attachment system (LA: locator attachment vs. BA: ball attachment).METHODS: Four models of mandibular overdentures were tested: M1-LA – with implants at the canine regions (standard implant position) and LA; M2-LA – with implants placed at the first premolar regions (distalized implant position) and LA; M1-BA – with standard implant position and BA; and M2-BA – with distalized implant position and BA. The geometric models were converted into finite element models. A 100 N axial load was applied at the first molar region. The von-Mises stress distribution was compared in selected points.RESULTS: The models with BA had pattern of stress distribution was more uniform along the implant axis than the ones with LA, although the stress magnitude was larger. The largest area of von Mises stresses on the alveolar ridge was in the models with standard implant distribution.CONCLUSION: The findings showed that the models with BA had better biomechanical behavior than the ones with LA. For both types of attachment, the models with increased inter-implant distance presented a smaller area of stress distribution in the perimplant cortical bone tissue than the standard implant position. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-07-25 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/28877 10.15448/1980-6523.2017.4.28877 |
url |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/28877 |
identifier_str_mv |
10.15448/1980-6523.2017.4.28877 |
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/28877/17010 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista Odonto Ciência info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista Odonto Ciência |
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. 32 No. 4 (2017); 185-192 Revista Odonto Ciência; v. 32 n. 4 (2017); 185-192 1980-6523 0102-9460 10.15448/1980-6523.2017.4 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 |
_version_ |
1754820877096058880 |