Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine

Detalhes bibliográficos
Autor(a) principal: Santana,Fernanda Ribeiro
Data de Publicação: 2008
Outros Autores: Pereira,Janaína Carla, Pereira,Cristina Alves, Fernandes Neto,Alfredo Júlio, Soares,Carlos José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000400012
Resumo: This study evaluated the influence of the method and period of storage on the adhesive bond strength of indirect composite resin to bovine dentin. Ninety bovine incisors were stored in three different solutions: 0.2% thymol, 10% formalin, and 0.2% sodium azide, during 3 periods of storage: 7 days, 30 days and 6 months, resulting in 9 groups (n = 10). The roots were cut off and the buccal surface was ground with #600-grit silicon carbide paper. The surface was conditioned with 37% phosphoric acid for 15 s and a composite resin restoration (TPH Spectrum) was fixed using a one-bottle adhesive system (Adper Single Bond) and a dual-cured resinous cement (Rely X ARC) under a load of 500 g for 5 minutes. The samples were serially cut perpendicular to the bonded interface to obtain slices of 1.2 mm in thickness. Each slab was trimmed with a cylindrical diamond bur resulting in an hourglass shape with a cross-sectional area of approximately 1 mm². The microtensile bond strength (μTBS) testing was performed in a testing machine (EMIC 2000 DL) at a 0.5 mm/minute crosshead-speed until failure. After fracture, the specimens were examined under SEM to analyze the mode of fracture. μTBS Means were expressed in MPa and the data were analyzed by two-way ANOVA (3X3) and the Tukey test (α = 0.05). The storage times of 7 and 30 days produced no significant difference irrespective of the solution type. The formalin and thymol solutions, however, did have a negative influence on bond strength when the teeth were stored for 6 months.
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spelling Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentineComposite resinsTensile strengthThymolFormaldehydeSodium azideDentinThis study evaluated the influence of the method and period of storage on the adhesive bond strength of indirect composite resin to bovine dentin. Ninety bovine incisors were stored in three different solutions: 0.2% thymol, 10% formalin, and 0.2% sodium azide, during 3 periods of storage: 7 days, 30 days and 6 months, resulting in 9 groups (n = 10). The roots were cut off and the buccal surface was ground with #600-grit silicon carbide paper. The surface was conditioned with 37% phosphoric acid for 15 s and a composite resin restoration (TPH Spectrum) was fixed using a one-bottle adhesive system (Adper Single Bond) and a dual-cured resinous cement (Rely X ARC) under a load of 500 g for 5 minutes. The samples were serially cut perpendicular to the bonded interface to obtain slices of 1.2 mm in thickness. Each slab was trimmed with a cylindrical diamond bur resulting in an hourglass shape with a cross-sectional area of approximately 1 mm². The microtensile bond strength (μTBS) testing was performed in a testing machine (EMIC 2000 DL) at a 0.5 mm/minute crosshead-speed until failure. After fracture, the specimens were examined under SEM to analyze the mode of fracture. μTBS Means were expressed in MPa and the data were analyzed by two-way ANOVA (3X3) and the Tukey test (α = 0.05). The storage times of 7 and 30 days produced no significant difference irrespective of the solution type. The formalin and thymol solutions, however, did have a negative influence on bond strength when the teeth were stored for 6 months.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2008-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000400012Brazilian Oral Research v.22 n.4 2008reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242008000400012info:eu-repo/semantics/openAccessSantana,Fernanda RibeiroPereira,Janaína CarlaPereira,Cristina AlvesFernandes Neto,Alfredo JúlioSoares,Carlos Joséeng2009-10-20T00:00:00Zoai:scielo:S1806-83242008000400012Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2009-10-20T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
title Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
spellingShingle Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
Santana,Fernanda Ribeiro
Composite resins
Tensile strength
Thymol
Formaldehyde
Sodium azide
Dentin
title_short Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
title_full Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
title_fullStr Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
title_full_unstemmed Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
title_sort Influence of method and period of storage on the microtensile bond strength of indirect composite resin restorations to dentine
author Santana,Fernanda Ribeiro
author_facet Santana,Fernanda Ribeiro
Pereira,Janaína Carla
Pereira,Cristina Alves
Fernandes Neto,Alfredo Júlio
Soares,Carlos José
author_role author
author2 Pereira,Janaína Carla
Pereira,Cristina Alves
Fernandes Neto,Alfredo Júlio
Soares,Carlos José
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santana,Fernanda Ribeiro
Pereira,Janaína Carla
Pereira,Cristina Alves
Fernandes Neto,Alfredo Júlio
Soares,Carlos José
dc.subject.por.fl_str_mv Composite resins
Tensile strength
Thymol
Formaldehyde
Sodium azide
Dentin
topic Composite resins
Tensile strength
Thymol
Formaldehyde
Sodium azide
Dentin
description This study evaluated the influence of the method and period of storage on the adhesive bond strength of indirect composite resin to bovine dentin. Ninety bovine incisors were stored in three different solutions: 0.2% thymol, 10% formalin, and 0.2% sodium azide, during 3 periods of storage: 7 days, 30 days and 6 months, resulting in 9 groups (n = 10). The roots were cut off and the buccal surface was ground with #600-grit silicon carbide paper. The surface was conditioned with 37% phosphoric acid for 15 s and a composite resin restoration (TPH Spectrum) was fixed using a one-bottle adhesive system (Adper Single Bond) and a dual-cured resinous cement (Rely X ARC) under a load of 500 g for 5 minutes. The samples were serially cut perpendicular to the bonded interface to obtain slices of 1.2 mm in thickness. Each slab was trimmed with a cylindrical diamond bur resulting in an hourglass shape with a cross-sectional area of approximately 1 mm². The microtensile bond strength (μTBS) testing was performed in a testing machine (EMIC 2000 DL) at a 0.5 mm/minute crosshead-speed until failure. After fracture, the specimens were examined under SEM to analyze the mode of fracture. μTBS Means were expressed in MPa and the data were analyzed by two-way ANOVA (3X3) and the Tukey test (α = 0.05). The storage times of 7 and 30 days produced no significant difference irrespective of the solution type. The formalin and thymol solutions, however, did have a negative influence on bond strength when the teeth were stored for 6 months.
publishDate 2008
dc.date.none.fl_str_mv 2008-12-01
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=S1806-83242008000400012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000400012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-83242008000400012
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 Sociedade Brasileira de Pesquisa Odontológica - SBPqO
publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
dc.source.none.fl_str_mv Brazilian Oral Research v.22 n.4 2008
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
instname_str Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron_str SBPQO
institution SBPQO
reponame_str Brazilian Oral Research
collection Brazilian Oral Research
repository.name.fl_str_mv Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
repository.mail.fl_str_mv pob@edu.usp.br||bor@sbpqo.org.br
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