Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections

Detalhes bibliográficos
Autor(a) principal: Panza, Leonardo
Data de Publicação: 2010
Outros Autores: Boscatto, Noeli, Del Bel Cury, Altair Antoninha
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista odonto ciência (Online)
Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/6764
Resumo: Purpose: This study evaluated pre-tightening maintenance in abutment and prosthetic screws of external and internal hexagon implant with straight and angled abutments. Methods: Four groups of implants and abutments were assessed combining internal and external hexagon and straight and angled abutments, which were retained by titanium screws tightened to 20 Ncm. Crowns were retained with gold screws tightened at 10 N.cm. A vertical line was ascribed across the implant-abutment-crown interface to verify horizontal displacement by a light microscope. The fatigue tests were performed in a servo-hydraulic machine, which delivered forces between 100 and 120 N for 250,000 cycles. The screw was removed, and the detorque value was recorded. Data were analyzed with 2-way ANOVA and Tukey’s test. Results: No horizontal displacement was observed on the interface of implant-abutment or abutment and crown. It was found significant difference for prosthetic screw between implant connection types, but without interaction with abutment. However, for abutment screw, there was a difference between implant connection types and abutment with interaction between implant and abutments. The straight abutment showed significant better performance than the 17° angled abutment. Conclusion: The connection implant types or abutment affected pre-tightening maintenance. Internal and external hexed connections were effective to avoid horizontal displacement of crowns.
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spelling Evaluation of pre-tightening in abutments and prosthetic screws on different implant connectionsAvaliação do pré-aparafusamento em pilares e parafusos protéticos em diferentes conexões de implanteAngled abutmentsfatigue testingimplant dentistryimplant connectionImplantsPilar anguladoteste de fadigaimplantodontiaconexão do implanteImplantes dentáriosPurpose: This study evaluated pre-tightening maintenance in abutment and prosthetic screws of external and internal hexagon implant with straight and angled abutments. Methods: Four groups of implants and abutments were assessed combining internal and external hexagon and straight and angled abutments, which were retained by titanium screws tightened to 20 Ncm. Crowns were retained with gold screws tightened at 10 N.cm. A vertical line was ascribed across the implant-abutment-crown interface to verify horizontal displacement by a light microscope. The fatigue tests were performed in a servo-hydraulic machine, which delivered forces between 100 and 120 N for 250,000 cycles. The screw was removed, and the detorque value was recorded. Data were analyzed with 2-way ANOVA and Tukey’s test. Results: No horizontal displacement was observed on the interface of implant-abutment or abutment and crown. It was found significant difference for prosthetic screw between implant connection types, but without interaction with abutment. However, for abutment screw, there was a difference between implant connection types and abutment with interaction between implant and abutments. The straight abutment showed significant better performance than the 17° angled abutment. Conclusion: The connection implant types or abutment affected pre-tightening maintenance. Internal and external hexed connections were effective to avoid horizontal displacement of crowns.Objetivo: Este estudo avaliou a manutenção do pré-aparafusamento em pilar e parafuso protético de implantes com hexágono interno e externo, com pilares retos e angulados. Metodologia: Quatro grupos de implantes e pilares foram avaliados, combinando-se o hexágono interno ou externo e o pilar reto ou angulado, os quais foram retidos por parafusos de titânio aparafusados 20 Ncm. As coroas fora retidas com parafusos de ouro aparafusados a 10 Ncm. Uma linha vertical foi delineada sobre a interface implante-pilar-coroa para verificar o deslocamento vertical com uso de microscópio ótico. Os testes de fadiga foram realizados em uma máquina servo-hidráulica, que promoveu forças entre 100 e 120 N por 250.000 ciclos. O parafuso foi removido e o valor de detorque for registrado. Os dados foram analisados por ANOVA de dois fatores e teste de Tukey. Resultados: Nenhum deslocamento horizontal foi observado na interface implante-pilar ou pilar-coroa. Observou-se uma diferença significativa para o parafuso protético entre os tipos de conexão do implante, mas sem interação com o pilar. Porém, para o parafuso do pilar houve diferença entre tipos de conexão e pilar, com interação entre pilar e implante. O pilar reto mostrou melhor performance que o pilar angulado a 17°. Conclusão: Os tipos de conexão do implante ou pilar afetaram a manutenção do pré-aparafusamento. As conexões de hexágono interno e externo foram efetivas para evitar o deslocamento horizontal das coroas.EDIPUCRS - Editora Universitária da PUCRS2010-09-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articlein vitro; laboratorial; experimentalin vitro; laboratorial; experimentalapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/6764Revista Odonto Ciência; Vol. 25 No. 3 (2010); 292 - 295Revista Odonto Ciência; v. 25 n. 3 (2010); 292 - 2951980-65230102-9460reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/6764/5551Panza, LeonardoBoscatto, NoeliDel Bel Cury, Altair Antoninhainfo:eu-repo/semantics/openAccess2013-11-11T12:30:19Zoai:ojs.revistaseletronicas.pucrs.br:article/6764Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-11T12:30:19Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
Avaliação do pré-aparafusamento em pilares e parafusos protéticos em diferentes conexões de implante
title Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
spellingShingle Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
Panza, Leonardo
Angled abutments
fatigue testing
implant dentistry
implant connection
Implants
Pilar angulado
teste de fadiga
implantodontia
conexão do implante
Implantes dentários
title_short Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
title_full Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
title_fullStr Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
title_full_unstemmed Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
title_sort Evaluation of pre-tightening in abutments and prosthetic screws on different implant connections
author Panza, Leonardo
author_facet Panza, Leonardo
Boscatto, Noeli
Del Bel Cury, Altair Antoninha
author_role author
author2 Boscatto, Noeli
Del Bel Cury, Altair Antoninha
author2_role author
author
dc.contributor.author.fl_str_mv Panza, Leonardo
Boscatto, Noeli
Del Bel Cury, Altair Antoninha
dc.subject.por.fl_str_mv Angled abutments
fatigue testing
implant dentistry
implant connection
Implants
Pilar angulado
teste de fadiga
implantodontia
conexão do implante
Implantes dentários
topic Angled abutments
fatigue testing
implant dentistry
implant connection
Implants
Pilar angulado
teste de fadiga
implantodontia
conexão do implante
Implantes dentários
description Purpose: This study evaluated pre-tightening maintenance in abutment and prosthetic screws of external and internal hexagon implant with straight and angled abutments. Methods: Four groups of implants and abutments were assessed combining internal and external hexagon and straight and angled abutments, which were retained by titanium screws tightened to 20 Ncm. Crowns were retained with gold screws tightened at 10 N.cm. A vertical line was ascribed across the implant-abutment-crown interface to verify horizontal displacement by a light microscope. The fatigue tests were performed in a servo-hydraulic machine, which delivered forces between 100 and 120 N for 250,000 cycles. The screw was removed, and the detorque value was recorded. Data were analyzed with 2-way ANOVA and Tukey’s test. Results: No horizontal displacement was observed on the interface of implant-abutment or abutment and crown. It was found significant difference for prosthetic screw between implant connection types, but without interaction with abutment. However, for abutment screw, there was a difference between implant connection types and abutment with interaction between implant and abutments. The straight abutment showed significant better performance than the 17° angled abutment. Conclusion: The connection implant types or abutment affected pre-tightening maintenance. Internal and external hexed connections were effective to avoid horizontal displacement of crowns.
publishDate 2010
dc.date.none.fl_str_mv 2010-09-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
in vitro; laboratorial; experimental
in vitro; laboratorial; experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/6764
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/6764
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/6764/5551
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
dc.source.none.fl_str_mv Revista Odonto Ciência; Vol. 25 No. 3 (2010); 292 - 295
Revista Odonto Ciência; v. 25 n. 3 (2010); 292 - 295
1980-6523
0102-9460
reponame:Revista odonto ciência (Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Revista odonto ciência (Online)
collection Revista odonto ciência (Online)
repository.name.fl_str_mv Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv ||odontociencia@pucrs.br
_version_ 1754820875381637120

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