Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000200148 |
Resumo: | Abstract The purpose of this study was to assess the influence of sealing of the screw access hole (SAH) on the fracture resistance of metal-ceramic implant-supported restorations. UCLA abutments were used to make 30 implant-retained mandibular molar restorations and divide equally into three groups: Group SRS: screw-retained restorations with SAH sealed; Group SRNS: screw-retained restorations with SAH not sealed; Group CR: cement-retained restorations. The following protocol was adopted to restore the SAH: the ceramic surface of the SAH was air-abraded with aluminum oxide; etched with 10% hydrofluoric acid; a silane coupling agent and a bonding agent were applied; cotton pellets were used as filling material and P-60 resin composite as restoring material. The cement-retained restorations were cemented with Rely-X U100. A metal rod with a spherical tip of 6.0 mm diameter was used to apply a vertical static load, simultaneously on the buccal and lingual incline cusps, at a crosshead speed of 0.5 mm/min until the fracture of the specimens. Data were analyzed using one-way ANOVA and Dunnet test (p<0.05) for multiples comparisons. The mode of failure was evaluated by a scanning electron microscopy (SEM). No significant difference between screw-retained restorations was found. The highest mean fracture resistance values were observed with CR group. Therefore, it was shown that SAH sealing did not influence the fracture resistance of the screw-retained restorations. |
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Brazilian Dental Journal |
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Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorationsfracture resistancescrew access holescrew-retained implant-supported restorationcement-retained implant-supported restoration.Abstract The purpose of this study was to assess the influence of sealing of the screw access hole (SAH) on the fracture resistance of metal-ceramic implant-supported restorations. UCLA abutments were used to make 30 implant-retained mandibular molar restorations and divide equally into three groups: Group SRS: screw-retained restorations with SAH sealed; Group SRNS: screw-retained restorations with SAH not sealed; Group CR: cement-retained restorations. The following protocol was adopted to restore the SAH: the ceramic surface of the SAH was air-abraded with aluminum oxide; etched with 10% hydrofluoric acid; a silane coupling agent and a bonding agent were applied; cotton pellets were used as filling material and P-60 resin composite as restoring material. The cement-retained restorations were cemented with Rely-X U100. A metal rod with a spherical tip of 6.0 mm diameter was used to apply a vertical static load, simultaneously on the buccal and lingual incline cusps, at a crosshead speed of 0.5 mm/min until the fracture of the specimens. Data were analyzed using one-way ANOVA and Dunnet test (p<0.05) for multiples comparisons. The mode of failure was evaluated by a scanning electron microscopy (SEM). No significant difference between screw-retained restorations was found. The highest mean fracture resistance values were observed with CR group. Therefore, it was shown that SAH sealing did not influence the fracture resistance of the screw-retained restorations.Fundação Odontológica de Ribeirão Preto2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000200148Brazilian Dental Journal v.27 n.2 2016reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201600575info:eu-repo/semantics/openAccessPereira,Rodrigo de PaulaRocha,Cibele Oliveira de MeloReis,José Maurício dos Santos NunesArioli-Filho,João Neudenireng2016-03-30T00:00:00Zoai:scielo:S0103-64402016000200148Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2016-03-30T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
title |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
spellingShingle |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations Pereira,Rodrigo de Paula fracture resistance screw access hole screw-retained implant-supported restoration cement-retained implant-supported restoration. |
title_short |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
title_full |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
title_fullStr |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
title_full_unstemmed |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
title_sort |
Influence of Sealing of the Screw Access Hole on the Fracture Resistance of Implant-Supported Restorations |
author |
Pereira,Rodrigo de Paula |
author_facet |
Pereira,Rodrigo de Paula Rocha,Cibele Oliveira de Melo Reis,José Maurício dos Santos Nunes Arioli-Filho,João Neudenir |
author_role |
author |
author2 |
Rocha,Cibele Oliveira de Melo Reis,José Maurício dos Santos Nunes Arioli-Filho,João Neudenir |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Pereira,Rodrigo de Paula Rocha,Cibele Oliveira de Melo Reis,José Maurício dos Santos Nunes Arioli-Filho,João Neudenir |
dc.subject.por.fl_str_mv |
fracture resistance screw access hole screw-retained implant-supported restoration cement-retained implant-supported restoration. |
topic |
fracture resistance screw access hole screw-retained implant-supported restoration cement-retained implant-supported restoration. |
description |
Abstract The purpose of this study was to assess the influence of sealing of the screw access hole (SAH) on the fracture resistance of metal-ceramic implant-supported restorations. UCLA abutments were used to make 30 implant-retained mandibular molar restorations and divide equally into three groups: Group SRS: screw-retained restorations with SAH sealed; Group SRNS: screw-retained restorations with SAH not sealed; Group CR: cement-retained restorations. The following protocol was adopted to restore the SAH: the ceramic surface of the SAH was air-abraded with aluminum oxide; etched with 10% hydrofluoric acid; a silane coupling agent and a bonding agent were applied; cotton pellets were used as filling material and P-60 resin composite as restoring material. The cement-retained restorations were cemented with Rely-X U100. A metal rod with a spherical tip of 6.0 mm diameter was used to apply a vertical static load, simultaneously on the buccal and lingual incline cusps, at a crosshead speed of 0.5 mm/min until the fracture of the specimens. Data were analyzed using one-way ANOVA and Dunnet test (p<0.05) for multiples comparisons. The mode of failure was evaluated by a scanning electron microscopy (SEM). No significant difference between screw-retained restorations was found. The highest mean fracture resistance values were observed with CR group. Therefore, it was shown that SAH sealing did not influence the fracture resistance of the screw-retained restorations. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-01 |
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=S0103-64402016000200148 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000200148 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440201600575 |
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.27 n.2 2016 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_ |
1754204094003675136 |