Preload loss and bacterial penetration on different implant-abutment connection systems

Detalhes bibliográficos
Autor(a) principal: Ricomini Filho,Antônio Pedro
Data de Publicação: 2010
Outros Autores: Fernandes,Frederico Silva de Freitas, Straioto,Fabiana Gouveia, Silva,Wander José da, Del Bel Cury,Altair Antoninha
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402010000200006
Resumo: Preload loss can favor the occurrence of implant-abutment interface misfit, and bacterial colonization at this interface may lead to implant failure. The aim of this study was to evaluate the preload loss and bacterial penetration through the implant-abutment interface of conical and external hexagon connection systems subjected to thermal cycling and mechanical fatigue (TM). Four different implant-abutment connection systems were evaluated (n=6): external hexagon with universal post, Morse taper with universal post, Morse taper with universal post through bolt, and locking taper with standard abutment. The assemblies (implant-abutment) were subjected to a thermal cycling regimen (1,000 cycles of 5°C and 55°C) and to mechanical fatigue (1.0 million cycles, 1.0 Hz, 120 N). The assemblies were immersed in Tryptic Soy + Yeast Extract broth containing Streptococcus sanguinis and incubated at 37°C and 10% CO2 for 72 h. Detorque values were recorded. The bacterial penetration was assessed and the abutments were observed by scanning electron microscopy. The preload data were analyzed statistically by two-way ANOVA and Tukey’s test at 5% significance level. All screw abutment systems showed significantly higher (p<0.05) detorque values when subjected to TM and all conical systems presented bacterial penetration. The results show no relationship between the preload loss and the bacterial penetration.
id FUNORP-1_6a790cc2d01f04e550e8e3d41b352e66
oai_identifier_str oai:scielo:S0103-64402010000200006
network_acronym_str FUNORP-1
network_name_str Brazilian Dental Journal
repository_id_str
spelling Preload loss and bacterial penetration on different implant-abutment connection systemsDental implantspreloadmicrogapbacterial penetrationPreload loss can favor the occurrence of implant-abutment interface misfit, and bacterial colonization at this interface may lead to implant failure. The aim of this study was to evaluate the preload loss and bacterial penetration through the implant-abutment interface of conical and external hexagon connection systems subjected to thermal cycling and mechanical fatigue (TM). Four different implant-abutment connection systems were evaluated (n=6): external hexagon with universal post, Morse taper with universal post, Morse taper with universal post through bolt, and locking taper with standard abutment. The assemblies (implant-abutment) were subjected to a thermal cycling regimen (1,000 cycles of 5°C and 55°C) and to mechanical fatigue (1.0 million cycles, 1.0 Hz, 120 N). The assemblies were immersed in Tryptic Soy + Yeast Extract broth containing Streptococcus sanguinis and incubated at 37°C and 10% CO2 for 72 h. Detorque values were recorded. The bacterial penetration was assessed and the abutments were observed by scanning electron microscopy. The preload data were analyzed statistically by two-way ANOVA and Tukey’s test at 5% significance level. All screw abutment systems showed significantly higher (p<0.05) detorque values when subjected to TM and all conical systems presented bacterial penetration. The results show no relationship between the preload loss and the bacterial penetration.Fundação Odontológica de Ribeirão Preto2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402010000200006Brazilian Dental Journal v.21 n.2 2010reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402010000200006info:eu-repo/semantics/openAccessRicomini Filho,Antônio PedroFernandes,Frederico Silva de FreitasStraioto,Fabiana GouveiaSilva,Wander José daDel Bel Cury,Altair Antoninhaeng2010-08-05T00:00:00Zoai:scielo:S0103-64402010000200006Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2010-08-05T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Preload loss and bacterial penetration on different implant-abutment connection systems
title Preload loss and bacterial penetration on different implant-abutment connection systems
spellingShingle Preload loss and bacterial penetration on different implant-abutment connection systems
Ricomini Filho,Antônio Pedro
Dental implants
preload
microgap
bacterial penetration
title_short Preload loss and bacterial penetration on different implant-abutment connection systems
title_full Preload loss and bacterial penetration on different implant-abutment connection systems
title_fullStr Preload loss and bacterial penetration on different implant-abutment connection systems
title_full_unstemmed Preload loss and bacterial penetration on different implant-abutment connection systems
title_sort Preload loss and bacterial penetration on different implant-abutment connection systems
author Ricomini Filho,Antônio Pedro
author_facet Ricomini Filho,Antônio Pedro
Fernandes,Frederico Silva de Freitas
Straioto,Fabiana Gouveia
Silva,Wander José da
Del Bel Cury,Altair Antoninha
author_role author
author2 Fernandes,Frederico Silva de Freitas
Straioto,Fabiana Gouveia
Silva,Wander José da
Del Bel Cury,Altair Antoninha
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ricomini Filho,Antônio Pedro
Fernandes,Frederico Silva de Freitas
Straioto,Fabiana Gouveia
Silva,Wander José da
Del Bel Cury,Altair Antoninha
dc.subject.por.fl_str_mv Dental implants
preload
microgap
bacterial penetration
topic Dental implants
preload
microgap
bacterial penetration
description Preload loss can favor the occurrence of implant-abutment interface misfit, and bacterial colonization at this interface may lead to implant failure. The aim of this study was to evaluate the preload loss and bacterial penetration through the implant-abutment interface of conical and external hexagon connection systems subjected to thermal cycling and mechanical fatigue (TM). Four different implant-abutment connection systems were evaluated (n=6): external hexagon with universal post, Morse taper with universal post, Morse taper with universal post through bolt, and locking taper with standard abutment. The assemblies (implant-abutment) were subjected to a thermal cycling regimen (1,000 cycles of 5°C and 55°C) and to mechanical fatigue (1.0 million cycles, 1.0 Hz, 120 N). The assemblies were immersed in Tryptic Soy + Yeast Extract broth containing Streptococcus sanguinis and incubated at 37°C and 10% CO2 for 72 h. Detorque values were recorded. The bacterial penetration was assessed and the abutments were observed by scanning electron microscopy. The preload data were analyzed statistically by two-way ANOVA and Tukey’s test at 5% significance level. All screw abutment systems showed significantly higher (p<0.05) detorque values when subjected to TM and all conical systems presented bacterial penetration. The results show no relationship between the preload loss and the bacterial penetration.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
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=S0103-64402010000200006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402010000200006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-64402010000200006
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 Fundação Odontológica de Ribeirão Preto
publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
dc.source.none.fl_str_mv Brazilian Dental Journal v.21 n.2 2010
reponame:Brazilian Dental Journal
instname:Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron:FUNORP
instname_str Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron_str FUNORP
institution FUNORP
reponame_str Brazilian Dental Journal
collection Brazilian Dental Journal
repository.name.fl_str_mv Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)
repository.mail.fl_str_mv bdj@forp.usp.br||sergio@fosjc.unesp.br
_version_ 1754204091326660608