Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis

Detalhes bibliográficos
Autor(a) principal: Vasconcellos,Luis Gustavo Oliveira de
Data de Publicação: 2011
Outros Autores: Nishioka,Renato Sussumu, Vasconcellos,Luana Marotta Reis de, Nishioka,Lea Nogueira Braulino de Melo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600011
Resumo: OBJECTIVES: The present study used strain gauge analysis to perform an in vitro evaluation of the effect of axial loading on 3 elements of implant-supported partial fixed prostheses, varying the type of prosthetic cylinder and the loading points. MATERIAL AND METHODS: Three internal hexagon implants were linearly embedded in a polyurethane block. Microunit abutments were connected to the implants applying a torque of 20 Ncm, and prefabricated Co-Cr cylinders and plastic prosthetic cylinders were screwed onto the abutments, which received standard patterns cast in Co-Cr alloy (n=5). Four strain gauges (SG) were bonded onto the surface of the block tangentially to the implants, SG 01 mesially to implant 1, SG 02 and SG 03 mesially and distally to implant 2, respectively, and SG 04 distally to implant 3. Each metallic structure was screwed onto the abutments with a 10 Ncm torque and an axial load of 30 kg was applied at five predetermined points (A, B, C, D, E). The data obtained from the strain gauge analyses were analyzed statistically by RM ANOVA and Tukey's test, with a level of significance of p<0.05. RESULTS: There was a significant difference for the loading point (p=0.0001), with point B generating the smallest microdeformation (239.49 µε) and point D the highest (442.77 µε). No significant difference was found for the cylinder type (p=0.748). CONCLUSIONS: It was concluded that the type of cylinder did not affect in the magnitude of microdeformation, but the axial loading location influenced this magnitude.
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spelling Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysisBiomechanicsDental implantsDental prosthesisImplant-supported dental prosthesisOBJECTIVES: The present study used strain gauge analysis to perform an in vitro evaluation of the effect of axial loading on 3 elements of implant-supported partial fixed prostheses, varying the type of prosthetic cylinder and the loading points. MATERIAL AND METHODS: Three internal hexagon implants were linearly embedded in a polyurethane block. Microunit abutments were connected to the implants applying a torque of 20 Ncm, and prefabricated Co-Cr cylinders and plastic prosthetic cylinders were screwed onto the abutments, which received standard patterns cast in Co-Cr alloy (n=5). Four strain gauges (SG) were bonded onto the surface of the block tangentially to the implants, SG 01 mesially to implant 1, SG 02 and SG 03 mesially and distally to implant 2, respectively, and SG 04 distally to implant 3. Each metallic structure was screwed onto the abutments with a 10 Ncm torque and an axial load of 30 kg was applied at five predetermined points (A, B, C, D, E). The data obtained from the strain gauge analyses were analyzed statistically by RM ANOVA and Tukey's test, with a level of significance of p<0.05. RESULTS: There was a significant difference for the loading point (p=0.0001), with point B generating the smallest microdeformation (239.49 µε) and point D the highest (442.77 µε). No significant difference was found for the cylinder type (p=0.748). CONCLUSIONS: It was concluded that the type of cylinder did not affect in the magnitude of microdeformation, but the axial loading location influenced this magnitude.Faculdade De Odontologia De Bauru - USP2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600011Journal of Applied Oral Science v.19 n.6 2011reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572011000600011info:eu-repo/semantics/openAccessVasconcellos,Luis Gustavo Oliveira deNishioka,Renato SussumuVasconcellos,Luana Marotta Reis deNishioka,Lea Nogueira Braulino de Meloeng2012-03-06T00:00:00Zoai:scielo:S1678-77572011000600011Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2012-03-06T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
title Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
spellingShingle Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
Vasconcellos,Luis Gustavo Oliveira de
Biomechanics
Dental implants
Dental prosthesis
Implant-supported dental prosthesis
title_short Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
title_full Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
title_fullStr Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
title_full_unstemmed Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
title_sort Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
author Vasconcellos,Luis Gustavo Oliveira de
author_facet Vasconcellos,Luis Gustavo Oliveira de
Nishioka,Renato Sussumu
Vasconcellos,Luana Marotta Reis de
Nishioka,Lea Nogueira Braulino de Melo
author_role author
author2 Nishioka,Renato Sussumu
Vasconcellos,Luana Marotta Reis de
Nishioka,Lea Nogueira Braulino de Melo
author2_role author
author
author
dc.contributor.author.fl_str_mv Vasconcellos,Luis Gustavo Oliveira de
Nishioka,Renato Sussumu
Vasconcellos,Luana Marotta Reis de
Nishioka,Lea Nogueira Braulino de Melo
dc.subject.por.fl_str_mv Biomechanics
Dental implants
Dental prosthesis
Implant-supported dental prosthesis
topic Biomechanics
Dental implants
Dental prosthesis
Implant-supported dental prosthesis
description OBJECTIVES: The present study used strain gauge analysis to perform an in vitro evaluation of the effect of axial loading on 3 elements of implant-supported partial fixed prostheses, varying the type of prosthetic cylinder and the loading points. MATERIAL AND METHODS: Three internal hexagon implants were linearly embedded in a polyurethane block. Microunit abutments were connected to the implants applying a torque of 20 Ncm, and prefabricated Co-Cr cylinders and plastic prosthetic cylinders were screwed onto the abutments, which received standard patterns cast in Co-Cr alloy (n=5). Four strain gauges (SG) were bonded onto the surface of the block tangentially to the implants, SG 01 mesially to implant 1, SG 02 and SG 03 mesially and distally to implant 2, respectively, and SG 04 distally to implant 3. Each metallic structure was screwed onto the abutments with a 10 Ncm torque and an axial load of 30 kg was applied at five predetermined points (A, B, C, D, E). The data obtained from the strain gauge analyses were analyzed statistically by RM ANOVA and Tukey's test, with a level of significance of p<0.05. RESULTS: There was a significant difference for the loading point (p=0.0001), with point B generating the smallest microdeformation (239.49 µε) and point D the highest (442.77 µε). No significant difference was found for the cylinder type (p=0.748). CONCLUSIONS: It was concluded that the type of cylinder did not affect in the magnitude of microdeformation, but the axial loading location influenced this magnitude.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
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=S1678-77572011000600011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-77572011000600011
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 Faculdade De Odontologia De Bauru - USP
publisher.none.fl_str_mv Faculdade De Odontologia De Bauru - USP
dc.source.none.fl_str_mv Journal of Applied Oral Science v.19 n.6 2011
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
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