Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.prosdent.2015.04.018 http://hdl.handle.net/11449/160950 |
Resumo: | Statement of problem. Clinicians should consider parafunctional occlusal load when planning treatment. Prosthetic connections can reduce the stress distribution implant-supported prosthesis. Purpose. The purpose of this 3-dimensional finite element study was to parafunctional loading and prosthetic connections on stress distribution. Material and methods. Computer-aided design software was used to construct 3 models. Each model was composed of a bone and an implant (external hexagon, internal hexagon, or Morse taper) with a crown. Finite element analysis software was used to generate the finite element mesh and establish the loading and boundary conditions. A normal force (200-N axial load and 100-N oblique load) and parafunctional force (1000-N axial and 500-N oblique load) were applied. Results were visualized as the maximum principal stress. Three-way analysis of variance and Tukey test were performed, and the percentage of contribution of each variable to the stress concentration was calculated from sum-of squares-analysis. Results. Stress was concentrated around the implant at the cortical bone, and models with the external hexagonal implant showed the highest stresses (P<.001). Oblique loads produced high tensile stress concentrations on the site opposite the load direction. Conclusions. Internal connection implants presented the most favorable biomechanical situation, whereas the least favorable situation was the biomechanical behavior of external connection implants. Parafunctional loading increased the magnitude of stress by 3 to 4 times. |
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Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysisStatement of problem. Clinicians should consider parafunctional occlusal load when planning treatment. Prosthetic connections can reduce the stress distribution implant-supported prosthesis. Purpose. The purpose of this 3-dimensional finite element study was to parafunctional loading and prosthetic connections on stress distribution. Material and methods. Computer-aided design software was used to construct 3 models. Each model was composed of a bone and an implant (external hexagon, internal hexagon, or Morse taper) with a crown. Finite element analysis software was used to generate the finite element mesh and establish the loading and boundary conditions. A normal force (200-N axial load and 100-N oblique load) and parafunctional force (1000-N axial and 500-N oblique load) were applied. Results were visualized as the maximum principal stress. Three-way analysis of variance and Tukey test were performed, and the percentage of contribution of each variable to the stress concentration was calculated from sum-of squares-analysis. Results. Stress was concentrated around the implant at the cortical bone, and models with the external hexagonal implant showed the highest stresses (P<.001). Oblique loads produced high tensile stress concentrations on the site opposite the load direction. Conclusions. Internal connection implants presented the most favorable biomechanical situation, whereas the least favorable situation was the biomechanical behavior of external connection implants. Parafunctional loading increased the magnitude of stress by 3 to 4 times.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Paulista, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, Sao Paulo, BrazilUniv Estadual Paulista, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, Sao Paulo, BrazilFAPESP: 2011/03624-0Elsevier B.V.Universidade Estadual Paulista (Unesp)Torcato, Leonardo Bueno [UNESP]Pellizzer, Eduardo Piza [UNESP]Verri, Fellippo Ramos [UNESP]Falcon-Antenucci, Rosse Mary [UNESP]Santiago Junior, Joel Ferreira [UNESP]Faria Almeida, Daniel Augusto de [UNESP]2018-11-26T16:17:22Z2018-11-26T16:17:22Z2015-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article644-651application/pdfhttp://dx.doi.org/10.1016/j.prosdent.2015.04.018Journal Of Prosthetic Dentistry. New York: Mosby-elsevier, v. 114, n. 5, p. 644-651, 2015.0022-3913http://hdl.handle.net/11449/16095010.1016/j.prosdent.2015.04.018WOS:000364269100006WOS000364269100006.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Prosthetic Dentistry1,087info:eu-repo/semantics/openAccess2023-12-17T06:17:25Zoai:repositorio.unesp.br:11449/160950Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:32:49.980471Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
title |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
spellingShingle |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis Torcato, Leonardo Bueno [UNESP] |
title_short |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
title_full |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
title_fullStr |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
title_full_unstemmed |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
title_sort |
Influence of parafunctional loading and prosthetic connection on stress distribution: A 3D finite element analysis |
author |
Torcato, Leonardo Bueno [UNESP] |
author_facet |
Torcato, Leonardo Bueno [UNESP] Pellizzer, Eduardo Piza [UNESP] Verri, Fellippo Ramos [UNESP] Falcon-Antenucci, Rosse Mary [UNESP] Santiago Junior, Joel Ferreira [UNESP] Faria Almeida, Daniel Augusto de [UNESP] |
author_role |
author |
author2 |
Pellizzer, Eduardo Piza [UNESP] Verri, Fellippo Ramos [UNESP] Falcon-Antenucci, Rosse Mary [UNESP] Santiago Junior, Joel Ferreira [UNESP] Faria Almeida, Daniel Augusto de [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Torcato, Leonardo Bueno [UNESP] Pellizzer, Eduardo Piza [UNESP] Verri, Fellippo Ramos [UNESP] Falcon-Antenucci, Rosse Mary [UNESP] Santiago Junior, Joel Ferreira [UNESP] Faria Almeida, Daniel Augusto de [UNESP] |
description |
Statement of problem. Clinicians should consider parafunctional occlusal load when planning treatment. Prosthetic connections can reduce the stress distribution implant-supported prosthesis. Purpose. The purpose of this 3-dimensional finite element study was to parafunctional loading and prosthetic connections on stress distribution. Material and methods. Computer-aided design software was used to construct 3 models. Each model was composed of a bone and an implant (external hexagon, internal hexagon, or Morse taper) with a crown. Finite element analysis software was used to generate the finite element mesh and establish the loading and boundary conditions. A normal force (200-N axial load and 100-N oblique load) and parafunctional force (1000-N axial and 500-N oblique load) were applied. Results were visualized as the maximum principal stress. Three-way analysis of variance and Tukey test were performed, and the percentage of contribution of each variable to the stress concentration was calculated from sum-of squares-analysis. Results. Stress was concentrated around the implant at the cortical bone, and models with the external hexagonal implant showed the highest stresses (P<.001). Oblique loads produced high tensile stress concentrations on the site opposite the load direction. Conclusions. Internal connection implants presented the most favorable biomechanical situation, whereas the least favorable situation was the biomechanical behavior of external connection implants. Parafunctional loading increased the magnitude of stress by 3 to 4 times. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11-01 2018-11-26T16:17:22Z 2018-11-26T16:17:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.prosdent.2015.04.018 Journal Of Prosthetic Dentistry. New York: Mosby-elsevier, v. 114, n. 5, p. 644-651, 2015. 0022-3913 http://hdl.handle.net/11449/160950 10.1016/j.prosdent.2015.04.018 WOS:000364269100006 WOS000364269100006.pdf |
url |
http://dx.doi.org/10.1016/j.prosdent.2015.04.018 http://hdl.handle.net/11449/160950 |
identifier_str_mv |
Journal Of Prosthetic Dentistry. New York: Mosby-elsevier, v. 114, n. 5, p. 644-651, 2015. 0022-3913 10.1016/j.prosdent.2015.04.018 WOS:000364269100006 WOS000364269100006.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Prosthetic Dentistry 1,087 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
644-651 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129217757446144 |