A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength

Detalhes bibliográficos
Autor(a) principal: DERCELI, Juliana dos Reis
Data de Publicação: 2014
Outros Autores: FAIS, Laiza Maria Grassi, PINELLI, Lígia Antunes Pereira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: https://www.revistas.usp.br/jaos/article/view/100907
Resumo: Favorable results in the use of castor oil polyurethane (COP) as pulp capping, membrane material, sealer, mouthwash and in bone repair, associated with the fact that Ricinus communis is not derived from petroleum and it is abundant in Brazil, encourage researches in the development of luting agents. Objectives This study compared the flexural strength (FS) of a castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate (COP10) with RelyX ARC (RX) after mechanical cycling (MC) and distilled water storage. Material and Methods Sixty-four specimens (25x2x2 mm) were fabricated and divided into two groups, COP10 and RX (control). Each group was divided into 4 subgroups (n=8) according to the storage time, 24 hours (24 h) or 60 days (60 d), and the performance (MC+FS) or not (only FS) of the mechanical cycling test. The FS (10 kN; 0.5 mm/min) and MC tests (10,000 cycles, 5 Hz, 0.5 mm/min) were carried out using an MTS-810 machine. The data were analyzed using ANOVA (α=0.05). Results The obtained FS (MPa) values were: COP10 24h- 19.04±2.41; COP10 60d- 17.92±3.54; RX 24h- 75.19±3.43; RX 60d- 88.77±6.89. All the RX specimens submitted to MC fractured, while the values for COP10 after MC were as follows: COP10 24h- 17.90±1.87 and COP10 60d- 18.60±1.60. Conclusions A castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate is resistant to mechanical cycling without decreases in flexural strength. However, mean COP10 showed only about 25% of the RelyX ARC mean flexural strength.
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spelling A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength Favorable results in the use of castor oil polyurethane (COP) as pulp capping, membrane material, sealer, mouthwash and in bone repair, associated with the fact that Ricinus communis is not derived from petroleum and it is abundant in Brazil, encourage researches in the development of luting agents. Objectives This study compared the flexural strength (FS) of a castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate (COP10) with RelyX ARC (RX) after mechanical cycling (MC) and distilled water storage. Material and Methods Sixty-four specimens (25x2x2 mm) were fabricated and divided into two groups, COP10 and RX (control). Each group was divided into 4 subgroups (n=8) according to the storage time, 24 hours (24 h) or 60 days (60 d), and the performance (MC+FS) or not (only FS) of the mechanical cycling test. The FS (10 kN; 0.5 mm/min) and MC tests (10,000 cycles, 5 Hz, 0.5 mm/min) were carried out using an MTS-810 machine. The data were analyzed using ANOVA (α=0.05). Results The obtained FS (MPa) values were: COP10 24h- 19.04±2.41; COP10 60d- 17.92±3.54; RX 24h- 75.19±3.43; RX 60d- 88.77±6.89. All the RX specimens submitted to MC fractured, while the values for COP10 after MC were as follows: COP10 24h- 17.90±1.87 and COP10 60d- 18.60±1.60. Conclusions A castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate is resistant to mechanical cycling without decreases in flexural strength. However, mean COP10 showed only about 25% of the RelyX ARC mean flexural strength. Universidade de São Paulo. Faculdade de Odontologia de Bauru2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/10090710.1590/1678-775720140069Journal of Applied Oral Science; Vol. 22 No. 6 (2014); 496-501Journal of Applied Oral Science; Vol. 22 Núm. 6 (2014); 496-501Journal of Applied Oral Science; v. 22 n. 6 (2014); 496-5011678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/100907/99577Copyright (c) 2014 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessDERCELI, Juliana dos Reis FAIS, Laiza Maria Grassi PINELLI, Lígia Antunes Pereira 2015-07-28T17:05:08Zoai:revistas.usp.br:article/100907Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2015-07-28T17:05:08Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
title A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
spellingShingle A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
DERCELI, Juliana dos Reis
title_short A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
title_full A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
title_fullStr A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
title_full_unstemmed A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
title_sort A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength
author DERCELI, Juliana dos Reis
author_facet DERCELI, Juliana dos Reis
FAIS, Laiza Maria Grassi
PINELLI, Lígia Antunes Pereira
author_role author
author2 FAIS, Laiza Maria Grassi
PINELLI, Lígia Antunes Pereira
author2_role author
author
dc.contributor.author.fl_str_mv DERCELI, Juliana dos Reis
FAIS, Laiza Maria Grassi
PINELLI, Lígia Antunes Pereira
description Favorable results in the use of castor oil polyurethane (COP) as pulp capping, membrane material, sealer, mouthwash and in bone repair, associated with the fact that Ricinus communis is not derived from petroleum and it is abundant in Brazil, encourage researches in the development of luting agents. Objectives This study compared the flexural strength (FS) of a castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate (COP10) with RelyX ARC (RX) after mechanical cycling (MC) and distilled water storage. Material and Methods Sixty-four specimens (25x2x2 mm) were fabricated and divided into two groups, COP10 and RX (control). Each group was divided into 4 subgroups (n=8) according to the storage time, 24 hours (24 h) or 60 days (60 d), and the performance (MC+FS) or not (only FS) of the mechanical cycling test. The FS (10 kN; 0.5 mm/min) and MC tests (10,000 cycles, 5 Hz, 0.5 mm/min) were carried out using an MTS-810 machine. The data were analyzed using ANOVA (α=0.05). Results The obtained FS (MPa) values were: COP10 24h- 19.04±2.41; COP10 60d- 17.92±3.54; RX 24h- 75.19±3.43; RX 60d- 88.77±6.89. All the RX specimens submitted to MC fractured, while the values for COP10 after MC were as follows: COP10 24h- 17.90±1.87 and COP10 60d- 18.60±1.60. Conclusions A castor oil-containing dental luting agent with a weight percentage of 10% (wt%) of calcium carbonate is resistant to mechanical cycling without decreases in flexural strength. However, mean COP10 showed only about 25% of the RelyX ARC mean flexural strength.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/jaos/article/view/100907
10.1590/1678-775720140069
url https://www.revistas.usp.br/jaos/article/view/100907
identifier_str_mv 10.1590/1678-775720140069
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/jaos/article/view/100907/99577
dc.rights.driver.fl_str_mv Copyright (c) 2014 Journal of Applied Oral Science
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2014 Journal of Applied Oral Science
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
dc.source.none.fl_str_mv Journal of Applied Oral Science; Vol. 22 No. 6 (2014); 496-501
Journal of Applied Oral Science; Vol. 22 Núm. 6 (2014); 496-501
Journal of Applied Oral Science; v. 22 n. 6 (2014); 496-501
1678-7765
1678-7757
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
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