Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation

Detalhes bibliográficos
Autor(a) principal: Santos,Mariana Diniz Bisi
Data de Publicação: 2007
Outros Autores: Pfeifer,Arthur Braga, Silva,Marcos Rogério Pupo, Sendyk,Claudio Luiz, Sendyk,Wilson Roberto
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=S1678-77572007000200015
Resumo: One of the causes of implant failures in cemented implant-retained prostheses is the fracture of abutment screw or UCLA abutment. This article reports a case of simultaneous fracture of two UCLA abutments screws occurring in an implant-supported prosthesis placed in the mandibular molar region. The fractured structures were examined under scanning electron microscopy to investigate the probable causes of the failure, which were not related to failures on materials or fabrication of the screws, but rather were due to shear forces. The misfit in cemented prostheses may be the most likely cause of shear force generation.
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spelling Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluationOsseointegrated implantsDental abutmentsFracturesProstheses and implantsOne of the causes of implant failures in cemented implant-retained prostheses is the fracture of abutment screw or UCLA abutment. This article reports a case of simultaneous fracture of two UCLA abutments screws occurring in an implant-supported prosthesis placed in the mandibular molar region. The fractured structures were examined under scanning electron microscopy to investigate the probable causes of the failure, which were not related to failures on materials or fabrication of the screws, but rather were due to shear forces. The misfit in cemented prostheses may be the most likely cause of shear force generation.Faculdade De Odontologia De Bauru - USP2007-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572007000200015Journal of Applied Oral Science v.15 n.2 2007reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572007000200015info:eu-repo/semantics/openAccessSantos,Mariana Diniz BisiPfeifer,Arthur BragaSilva,Marcos Rogério PupoSendyk,Claudio LuizSendyk,Wilson Robertoeng2007-06-19T00:00:00Zoai:scielo:S1678-77572007000200015Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2007-06-19T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
title Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
spellingShingle Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
Santos,Mariana Diniz Bisi
Osseointegrated implants
Dental abutments
Fractures
Prostheses and implants
title_short Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
title_full Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
title_fullStr Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
title_full_unstemmed Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
title_sort Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation
author Santos,Mariana Diniz Bisi
author_facet Santos,Mariana Diniz Bisi
Pfeifer,Arthur Braga
Silva,Marcos Rogério Pupo
Sendyk,Claudio Luiz
Sendyk,Wilson Roberto
author_role author
author2 Pfeifer,Arthur Braga
Silva,Marcos Rogério Pupo
Sendyk,Claudio Luiz
Sendyk,Wilson Roberto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santos,Mariana Diniz Bisi
Pfeifer,Arthur Braga
Silva,Marcos Rogério Pupo
Sendyk,Claudio Luiz
Sendyk,Wilson Roberto
dc.subject.por.fl_str_mv Osseointegrated implants
Dental abutments
Fractures
Prostheses and implants
topic Osseointegrated implants
Dental abutments
Fractures
Prostheses and implants
description One of the causes of implant failures in cemented implant-retained prostheses is the fracture of abutment screw or UCLA abutment. This article reports a case of simultaneous fracture of two UCLA abutments screws occurring in an implant-supported prosthesis placed in the mandibular molar region. The fractured structures were examined under scanning electron microscopy to investigate the probable causes of the failure, which were not related to failures on materials or fabrication of the screws, but rather were due to shear forces. The misfit in cemented prostheses may be the most likely cause of shear force generation.
publishDate 2007
dc.date.none.fl_str_mv 2007-04-01
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=S1678-77572007000200015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572007000200015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-77572007000200015
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.15 n.2 2007
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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