In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations

Detalhes bibliográficos
Autor(a) principal: Moris,Izabela Cristina Maurício
Data de Publicação: 2015
Outros Autores: Oliveira,Juliana Elias de, Faria,Adriana Cláudia Lapria, Ribeiro,Ricardo Faria, Rodrigues,Renata Cristina Silveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000500468
Resumo: Abstract: This study aimed to verify marginal fit and the effect of cement film thickness standardization on retention of provisional crowns made with prefabricated acrylic cylinders on abutments, using two temporary luting agents subjected or not to mechanical cycling. Provisional crowns were made from bis-acryl (Luxatemp Fluorescence) or methyl methacrylate (Duralay) resins on acrylic cylinders and marginal fit and cement film thickness were evaluated. For retention evaluation, crowns were cemented with two temporary luting agents: non-eugenol zinc oxide (Tempbond NE) or calcium hydroxide-based (Hydcal) cements and subjected to tensile strength in a universal testing machine. After cleaning, debonded crowns were cemented again, subjected to mechanical cycling and retention was reassessed. The results of marginal fit and cement film thickness were analyzed by Student's t-test while retention of cements before and after mechanical cycling was analyzed using a mixed linear model. Methyl methacrylate crowns presented greater marginal misfit (p=0.001) and occlusal cement film thickness (p=0.003) than the bis-acryl ones. No difference was observed at axial cement film thickness (p=0.606). Resins (p=0.281) did not affect crown retention, but luting agents (p=0.029) and mechanical cycling (p=0.027) showed significant effects. The only significant interaction was mechanical cycling*luting agents, which means that luting agents were differently affected by mechanical cycling (p=0.002). In conclusion, the results showed that bis-acryl resin associated to calcium-hydroxide luting agent provided the best retention and lower cement thickness.
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spelling In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorationsdental cementsacrylic resinsdental restoration temporarytensile strength.Abstract: This study aimed to verify marginal fit and the effect of cement film thickness standardization on retention of provisional crowns made with prefabricated acrylic cylinders on abutments, using two temporary luting agents subjected or not to mechanical cycling. Provisional crowns were made from bis-acryl (Luxatemp Fluorescence) or methyl methacrylate (Duralay) resins on acrylic cylinders and marginal fit and cement film thickness were evaluated. For retention evaluation, crowns were cemented with two temporary luting agents: non-eugenol zinc oxide (Tempbond NE) or calcium hydroxide-based (Hydcal) cements and subjected to tensile strength in a universal testing machine. After cleaning, debonded crowns were cemented again, subjected to mechanical cycling and retention was reassessed. The results of marginal fit and cement film thickness were analyzed by Student's t-test while retention of cements before and after mechanical cycling was analyzed using a mixed linear model. Methyl methacrylate crowns presented greater marginal misfit (p=0.001) and occlusal cement film thickness (p=0.003) than the bis-acryl ones. No difference was observed at axial cement film thickness (p=0.606). Resins (p=0.281) did not affect crown retention, but luting agents (p=0.029) and mechanical cycling (p=0.027) showed significant effects. The only significant interaction was mechanical cycling*luting agents, which means that luting agents were differently affected by mechanical cycling (p=0.002). In conclusion, the results showed that bis-acryl resin associated to calcium-hydroxide luting agent provided the best retention and lower cement thickness.Fundação Odontológica de Ribeirão Preto2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000500468Brazilian Dental Journal v.26 n.5 2015reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201300289info:eu-repo/semantics/openAccessMoris,Izabela Cristina MaurícioOliveira,Juliana Elias deFaria,Adriana Cláudia LapriaRibeiro,Ricardo FariaRodrigues,Renata Cristina Silveiraeng2015-12-03T00:00:00Zoai:scielo:S0103-64402015000500468Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2015-12-03T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
title In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
spellingShingle In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
Moris,Izabela Cristina Maurício
dental cements
acrylic resins
dental restoration temporary
tensile strength.
title_short In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
title_full In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
title_fullStr In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
title_full_unstemmed In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
title_sort In Vitro Fit and Cementation Resistance of Provisional Crowns for Single Implant-Supported Restorations
author Moris,Izabela Cristina Maurício
author_facet Moris,Izabela Cristina Maurício
Oliveira,Juliana Elias de
Faria,Adriana Cláudia Lapria
Ribeiro,Ricardo Faria
Rodrigues,Renata Cristina Silveira
author_role author
author2 Oliveira,Juliana Elias de
Faria,Adriana Cláudia Lapria
Ribeiro,Ricardo Faria
Rodrigues,Renata Cristina Silveira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Moris,Izabela Cristina Maurício
Oliveira,Juliana Elias de
Faria,Adriana Cláudia Lapria
Ribeiro,Ricardo Faria
Rodrigues,Renata Cristina Silveira
dc.subject.por.fl_str_mv dental cements
acrylic resins
dental restoration temporary
tensile strength.
topic dental cements
acrylic resins
dental restoration temporary
tensile strength.
description Abstract: This study aimed to verify marginal fit and the effect of cement film thickness standardization on retention of provisional crowns made with prefabricated acrylic cylinders on abutments, using two temporary luting agents subjected or not to mechanical cycling. Provisional crowns were made from bis-acryl (Luxatemp Fluorescence) or methyl methacrylate (Duralay) resins on acrylic cylinders and marginal fit and cement film thickness were evaluated. For retention evaluation, crowns were cemented with two temporary luting agents: non-eugenol zinc oxide (Tempbond NE) or calcium hydroxide-based (Hydcal) cements and subjected to tensile strength in a universal testing machine. After cleaning, debonded crowns were cemented again, subjected to mechanical cycling and retention was reassessed. The results of marginal fit and cement film thickness were analyzed by Student's t-test while retention of cements before and after mechanical cycling was analyzed using a mixed linear model. Methyl methacrylate crowns presented greater marginal misfit (p=0.001) and occlusal cement film thickness (p=0.003) than the bis-acryl ones. No difference was observed at axial cement film thickness (p=0.606). Resins (p=0.281) did not affect crown retention, but luting agents (p=0.029) and mechanical cycling (p=0.027) showed significant effects. The only significant interaction was mechanical cycling*luting agents, which means that luting agents were differently affected by mechanical cycling (p=0.002). In conclusion, the results showed that bis-acryl resin associated to calcium-hydroxide luting agent provided the best retention and lower cement thickness.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-01
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=S0103-64402015000500468
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000500468
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-6440201300289
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.26 n.5 2015
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
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