Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/231254 |
Resumo: | Purpose: Nonpassive fit frameworks are believed to lead to implant overload and consequently loss of osseointegration. This is one of the most commonly reported failures of implant prostheses. In an ideal situation of passive fit, when torque is applied to bring the abutment-cylinder interface together some amount of deformation can be expected, and it should be homogeneous along the periphery of the abutment. The aim of this study was to verify the amount of abutment deformation that can be expected when a free-standing cylinder is screwed into place. This could give insight into what should be accepted as passive fit. Materials and Methods: Strain gauges were bonded to the sides of five standard abutments that had machined palladiumsilver cylinders or cobalt-chromium cast cylinders screwed into place. Measurements were taken to verify the deformation at each site. Results: Values of abutment deformation after abutment screw tightening ranged from -127.70 to -590.27 µε. The deformation recorded for palladium-silver prosthetic cylinder tightening ranged from 56.905 to -381.50 µε (mean: 173.298 µε) and from -5.62638 to -383.86 µε (mean: 200.474 µε) for cobalt-chromium cylinders. There was no statistically significant difference among the two groups. Conclusion: Both abutment screw tightening and prosthetic cylinder screw tightening result in abutment deformation, which is compressive most of the time. © 2009 by Quintessence Publishing Co Inc. |
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Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro studyPurpose: Nonpassive fit frameworks are believed to lead to implant overload and consequently loss of osseointegration. This is one of the most commonly reported failures of implant prostheses. In an ideal situation of passive fit, when torque is applied to bring the abutment-cylinder interface together some amount of deformation can be expected, and it should be homogeneous along the periphery of the abutment. The aim of this study was to verify the amount of abutment deformation that can be expected when a free-standing cylinder is screwed into place. This could give insight into what should be accepted as passive fit. Materials and Methods: Strain gauges were bonded to the sides of five standard abutments that had machined palladiumsilver cylinders or cobalt-chromium cast cylinders screwed into place. Measurements were taken to verify the deformation at each site. Results: Values of abutment deformation after abutment screw tightening ranged from -127.70 to -590.27 µε. The deformation recorded for palladium-silver prosthetic cylinder tightening ranged from 56.905 to -381.50 µε (mean: 173.298 µε) and from -5.62638 to -383.86 µε (mean: 200.474 µε) for cobalt-chromium cylinders. There was no statistically significant difference among the two groups. Conclusion: Both abutment screw tightening and prosthetic cylinder screw tightening result in abutment deformation, which is compressive most of the time. © 2009 by Quintessence Publishing Co Inc.Department of Prosthodontics Bauru School of Dentistry University of São Paulo, Bauru, SPDepartment of Mechanical Engineering Bauru School of Engineering University of the State of São Paulo, Bauru, SPUniversidade de São Paulo (USP)University of the State of São PauloNeto, Rafael Tobias MorettiMoura, Márcio SilvaSouza, Edson Antônio CapelloRubo, José Henrique2022-04-29T08:44:22Z2022-04-29T08:44:22Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article391-395International Journal of Prosthodontics, v. 22, n. 4, p. 391-395, 2009.0893-2174http://hdl.handle.net/11449/2312542-s2.0-79953723129Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Prosthodonticsinfo:eu-repo/semantics/openAccess2024-06-28T13:54:35Zoai:repositorio.unesp.br:11449/231254Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:06:20.609421Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
title |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
spellingShingle |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study Neto, Rafael Tobias Moretti |
title_short |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
title_full |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
title_fullStr |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
title_full_unstemmed |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
title_sort |
Implant abutment deformation during prosthetic cylinder screw tightening: An in vitro study |
author |
Neto, Rafael Tobias Moretti |
author_facet |
Neto, Rafael Tobias Moretti Moura, Márcio Silva Souza, Edson Antônio Capello Rubo, José Henrique |
author_role |
author |
author2 |
Moura, Márcio Silva Souza, Edson Antônio Capello Rubo, José Henrique |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) University of the State of São Paulo |
dc.contributor.author.fl_str_mv |
Neto, Rafael Tobias Moretti Moura, Márcio Silva Souza, Edson Antônio Capello Rubo, José Henrique |
description |
Purpose: Nonpassive fit frameworks are believed to lead to implant overload and consequently loss of osseointegration. This is one of the most commonly reported failures of implant prostheses. In an ideal situation of passive fit, when torque is applied to bring the abutment-cylinder interface together some amount of deformation can be expected, and it should be homogeneous along the periphery of the abutment. The aim of this study was to verify the amount of abutment deformation that can be expected when a free-standing cylinder is screwed into place. This could give insight into what should be accepted as passive fit. Materials and Methods: Strain gauges were bonded to the sides of five standard abutments that had machined palladiumsilver cylinders or cobalt-chromium cast cylinders screwed into place. Measurements were taken to verify the deformation at each site. Results: Values of abutment deformation after abutment screw tightening ranged from -127.70 to -590.27 µε. The deformation recorded for palladium-silver prosthetic cylinder tightening ranged from 56.905 to -381.50 µε (mean: 173.298 µε) and from -5.62638 to -383.86 µε (mean: 200.474 µε) for cobalt-chromium cylinders. There was no statistically significant difference among the two groups. Conclusion: Both abutment screw tightening and prosthetic cylinder screw tightening result in abutment deformation, which is compressive most of the time. © 2009 by Quintessence Publishing Co Inc. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2022-04-29T08:44:22Z 2022-04-29T08:44:22Z |
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 |
International Journal of Prosthodontics, v. 22, n. 4, p. 391-395, 2009. 0893-2174 http://hdl.handle.net/11449/231254 2-s2.0-79953723129 |
identifier_str_mv |
International Journal of Prosthodontics, v. 22, n. 4, p. 391-395, 2009. 0893-2174 2-s2.0-79953723129 |
url |
http://hdl.handle.net/11449/231254 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Journal of Prosthodontics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
391-395 |
dc.source.none.fl_str_mv |
Scopus 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 |
|
_version_ |
1808128461532823552 |