Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins

Detalhes bibliográficos
Autor(a) principal: Consani,Rafael Leonardo Xediek
Data de Publicação: 2016
Outros Autores: Marinho,Tatiane, Bacchi,Atais, Caldas,Ricardo Armini, Feitosa,Victor Pinheiro, Pfeifer,Carmem Silvia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000400463
Resumo: Abstract The study verified the bond strength in simulated dental restorations of silorane- or methacrylate-based composites repaired with methacrylate-based composite. Methacrylate- (P60) or silorane-based (P90) composites were used associated with adhesive (Adper Single Bond 2). Twenty-four hemi-hourglass-shaped samples were repaired with each composite (n=12). Samples were divided according to groups: G1= P60 + Adper Single Bond 2+ P60; G2= P60 + Adper Single Bond 2 + P60 + thermocycling; G3= P90 + Adper Single Bond 2 + P60; and G4= P90 + Adper Single Bond 2 + P60 + thermocycling. G1 and G3 were submitted to tensile test 24 h after repair procedure, and G2 and G4 after submitted to 5,000 thermocycles at 5 and 55 ?#61616;C for 30 s in each bath. Tensile bond strength test was accomplished in an universal testing machine at crosshead speed of 0.5 mm/min. Data (MPa) were analyzed by two-way ANOVA and Tukey's test (5%). Sample failure pattern (adhesive, cohesive in resin or mixed) was evaluated by stereomicroscope at 30?#61655; and images were obtained in SEM. Bond strength values of methacrylate-based composite samples repaired with methacrylate-based composite (G1 and G2) were greater than for silorane-based samples (G3 and G4). Thermocycling decreased the bond strength values for both composites. All groups showed predominance of adhesive failures and no cohesive failure in composite resin was observed. In conclusion, higher bond strength values were observed in methacrylate-based resin samples and greater percentage of adhesive failures in silorane-based resin samples, both composites repaired with methacrylate-based resin.
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spelling Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resinsdental compositemethacrylatesiloranerepairbond strengthAbstract The study verified the bond strength in simulated dental restorations of silorane- or methacrylate-based composites repaired with methacrylate-based composite. Methacrylate- (P60) or silorane-based (P90) composites were used associated with adhesive (Adper Single Bond 2). Twenty-four hemi-hourglass-shaped samples were repaired with each composite (n=12). Samples were divided according to groups: G1= P60 + Adper Single Bond 2+ P60; G2= P60 + Adper Single Bond 2 + P60 + thermocycling; G3= P90 + Adper Single Bond 2 + P60; and G4= P90 + Adper Single Bond 2 + P60 + thermocycling. G1 and G3 were submitted to tensile test 24 h after repair procedure, and G2 and G4 after submitted to 5,000 thermocycles at 5 and 55 ?#61616;C for 30 s in each bath. Tensile bond strength test was accomplished in an universal testing machine at crosshead speed of 0.5 mm/min. Data (MPa) were analyzed by two-way ANOVA and Tukey's test (5%). Sample failure pattern (adhesive, cohesive in resin or mixed) was evaluated by stereomicroscope at 30?#61655; and images were obtained in SEM. Bond strength values of methacrylate-based composite samples repaired with methacrylate-based composite (G1 and G2) were greater than for silorane-based samples (G3 and G4). Thermocycling decreased the bond strength values for both composites. All groups showed predominance of adhesive failures and no cohesive failure in composite resin was observed. In conclusion, higher bond strength values were observed in methacrylate-based resin samples and greater percentage of adhesive failures in silorane-based resin samples, both composites repaired with methacrylate-based resin.Fundação Odontológica de Ribeirão Preto2016-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000400463Brazilian Dental Journal v.27 n.4 2016reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201600730info:eu-repo/semantics/openAccessConsani,Rafael Leonardo XediekMarinho,TatianeBacchi,AtaisCaldas,Ricardo ArminiFeitosa,Victor PinheiroPfeifer,Carmem Silviaeng2016-09-20T00:00:00Zoai:scielo:S0103-64402016000400463Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2016-09-20T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
title Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
spellingShingle Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
Consani,Rafael Leonardo Xediek
dental composite
methacrylate
silorane
repair
bond strength
title_short Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
title_full Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
title_fullStr Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
title_full_unstemmed Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
title_sort Repair Strength in Simulated Restorations of Methacrylate- or Silorane-Based Composite Resins
author Consani,Rafael Leonardo Xediek
author_facet Consani,Rafael Leonardo Xediek
Marinho,Tatiane
Bacchi,Atais
Caldas,Ricardo Armini
Feitosa,Victor Pinheiro
Pfeifer,Carmem Silvia
author_role author
author2 Marinho,Tatiane
Bacchi,Atais
Caldas,Ricardo Armini
Feitosa,Victor Pinheiro
Pfeifer,Carmem Silvia
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Consani,Rafael Leonardo Xediek
Marinho,Tatiane
Bacchi,Atais
Caldas,Ricardo Armini
Feitosa,Victor Pinheiro
Pfeifer,Carmem Silvia
dc.subject.por.fl_str_mv dental composite
methacrylate
silorane
repair
bond strength
topic dental composite
methacrylate
silorane
repair
bond strength
description Abstract The study verified the bond strength in simulated dental restorations of silorane- or methacrylate-based composites repaired with methacrylate-based composite. Methacrylate- (P60) or silorane-based (P90) composites were used associated with adhesive (Adper Single Bond 2). Twenty-four hemi-hourglass-shaped samples were repaired with each composite (n=12). Samples were divided according to groups: G1= P60 + Adper Single Bond 2+ P60; G2= P60 + Adper Single Bond 2 + P60 + thermocycling; G3= P90 + Adper Single Bond 2 + P60; and G4= P90 + Adper Single Bond 2 + P60 + thermocycling. G1 and G3 were submitted to tensile test 24 h after repair procedure, and G2 and G4 after submitted to 5,000 thermocycles at 5 and 55 ?#61616;C for 30 s in each bath. Tensile bond strength test was accomplished in an universal testing machine at crosshead speed of 0.5 mm/min. Data (MPa) were analyzed by two-way ANOVA and Tukey's test (5%). Sample failure pattern (adhesive, cohesive in resin or mixed) was evaluated by stereomicroscope at 30?#61655; and images were obtained in SEM. Bond strength values of methacrylate-based composite samples repaired with methacrylate-based composite (G1 and G2) were greater than for silorane-based samples (G3 and G4). Thermocycling decreased the bond strength values for both composites. All groups showed predominance of adhesive failures and no cohesive failure in composite resin was observed. In conclusion, higher bond strength values were observed in methacrylate-based resin samples and greater percentage of adhesive failures in silorane-based resin samples, both composites repaired with methacrylate-based resin.
publishDate 2016
dc.date.none.fl_str_mv 2016-08-01
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=S0103-64402016000400463
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000400463
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-6440201600730
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.4 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
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