Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/2232 |
Resumo: | Purpose: To evaluate, in vitro, the influence of antioxidants (green tea extract - GT and sodium ascorbate - SA) on microshear bond strength (?SBS) of a universal adhesive system – self-etching mode (UAS) to bleached enamel. Material and Methods: After obtaining 50 fragments of human dental enamel (4 mm x 4 mm), forty fragments were submitted to at-home bleaching technique using 10% carbamide peroxide (Opalescence PF, Ultradent) for two hours/day, for four weeks. They were randomly divided in four groups (n=10): GT - 10% aqueous GT solution (60 minutes); SA - 10% SA solution (10 minutes); Negative control - no antioxidant agent, immediately restored; PC1 (positive control 1) - no antioxidant agent, restored 14 days the bleaching procedure. Ten enamel fragments were assigned to PC2 group (positive control 2), in which the adhesive procedures were realized in non-bleached enamel. The UAS (Adper Single Bond Universal, 3M ESPE) was applied on enamel surface according to manufacturer’s instructions and two cylinders (0,8 mm diameter) of nanoparticulate composite resin (Z350, 3M ESPE) were made on each sample. After 24 hours, the cylinders were submitted to ?SBS in a universal test machine (0.5 mm/min). Fracture mode was evaluated in stereomicroscope (40x magnification). SBS data, in MPa, was submitted to one-way ANOVA (?=0,05). Results: There was no statistical difference between the experimental groups (p=0,545). The fracture mode demonstrated that there was predominance of adhesive fracture in all groups. Conclusion: Neither the bleaching procedure nor the application of antioxidants to bleached enamel interfered in the bond strength of the tested universal adhesive system. KEYWORDS Antioxidants; Dental bleaching; Shear strength. |
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oai:ojs.pkp.sfu.ca:article/2232 |
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UNESP-20 |
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Brazilian Dental Science |
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Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamelPurpose: To evaluate, in vitro, the influence of antioxidants (green tea extract - GT and sodium ascorbate - SA) on microshear bond strength (?SBS) of a universal adhesive system – self-etching mode (UAS) to bleached enamel. Material and Methods: After obtaining 50 fragments of human dental enamel (4 mm x 4 mm), forty fragments were submitted to at-home bleaching technique using 10% carbamide peroxide (Opalescence PF, Ultradent) for two hours/day, for four weeks. They were randomly divided in four groups (n=10): GT - 10% aqueous GT solution (60 minutes); SA - 10% SA solution (10 minutes); Negative control - no antioxidant agent, immediately restored; PC1 (positive control 1) - no antioxidant agent, restored 14 days the bleaching procedure. Ten enamel fragments were assigned to PC2 group (positive control 2), in which the adhesive procedures were realized in non-bleached enamel. The UAS (Adper Single Bond Universal, 3M ESPE) was applied on enamel surface according to manufacturer’s instructions and two cylinders (0,8 mm diameter) of nanoparticulate composite resin (Z350, 3M ESPE) were made on each sample. After 24 hours, the cylinders were submitted to ?SBS in a universal test machine (0.5 mm/min). Fracture mode was evaluated in stereomicroscope (40x magnification). SBS data, in MPa, was submitted to one-way ANOVA (?=0,05). Results: There was no statistical difference between the experimental groups (p=0,545). The fracture mode demonstrated that there was predominance of adhesive fracture in all groups. Conclusion: Neither the bleaching procedure nor the application of antioxidants to bleached enamel interfered in the bond strength of the tested universal adhesive system. KEYWORDS Antioxidants; Dental bleaching; Shear strength.Institute of Science and Technology of São José dos Campos2020-12-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/223210.14295/bds.2021.v24i1.2232Brazilian Dental Science; Vol. 24 No. 1 (2021): Jan - Mar / 2021 - published Dec 2020Brazilian Dental Science; v. 24 n. 1 (2021): Jan - Mar / 2021 - published Dec 20202178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/2232/4248Copyright (c) 2020 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessMachado, Ana LuizaNascimento, DayanaCoelho Junior, PauloFrança, FabianaTurssi, CeciliaBasting, RobertaAmaral, Flávia Lucisano Botelho2021-03-30T12:45:03Zoai:ojs.pkp.sfu.ca:article/2232Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:32.833858Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
title |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
spellingShingle |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel Machado, Ana Luiza |
title_short |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
title_full |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
title_fullStr |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
title_full_unstemmed |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
title_sort |
Effect antioxidants application on microshear bond strength of universal adhesive to bleached enamel |
author |
Machado, Ana Luiza |
author_facet |
Machado, Ana Luiza Nascimento, Dayana Coelho Junior, Paulo França, Fabiana Turssi, Cecilia Basting, Roberta Amaral, Flávia Lucisano Botelho |
author_role |
author |
author2 |
Nascimento, Dayana Coelho Junior, Paulo França, Fabiana Turssi, Cecilia Basting, Roberta Amaral, Flávia Lucisano Botelho |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Machado, Ana Luiza Nascimento, Dayana Coelho Junior, Paulo França, Fabiana Turssi, Cecilia Basting, Roberta Amaral, Flávia Lucisano Botelho |
description |
Purpose: To evaluate, in vitro, the influence of antioxidants (green tea extract - GT and sodium ascorbate - SA) on microshear bond strength (?SBS) of a universal adhesive system – self-etching mode (UAS) to bleached enamel. Material and Methods: After obtaining 50 fragments of human dental enamel (4 mm x 4 mm), forty fragments were submitted to at-home bleaching technique using 10% carbamide peroxide (Opalescence PF, Ultradent) for two hours/day, for four weeks. They were randomly divided in four groups (n=10): GT - 10% aqueous GT solution (60 minutes); SA - 10% SA solution (10 minutes); Negative control - no antioxidant agent, immediately restored; PC1 (positive control 1) - no antioxidant agent, restored 14 days the bleaching procedure. Ten enamel fragments were assigned to PC2 group (positive control 2), in which the adhesive procedures were realized in non-bleached enamel. The UAS (Adper Single Bond Universal, 3M ESPE) was applied on enamel surface according to manufacturer’s instructions and two cylinders (0,8 mm diameter) of nanoparticulate composite resin (Z350, 3M ESPE) were made on each sample. After 24 hours, the cylinders were submitted to ?SBS in a universal test machine (0.5 mm/min). Fracture mode was evaluated in stereomicroscope (40x magnification). SBS data, in MPa, was submitted to one-way ANOVA (?=0,05). Results: There was no statistical difference between the experimental groups (p=0,545). The fracture mode demonstrated that there was predominance of adhesive fracture in all groups. Conclusion: Neither the bleaching procedure nor the application of antioxidants to bleached enamel interfered in the bond strength of the tested universal adhesive system. KEYWORDS Antioxidants; Dental bleaching; Shear strength. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-22 |
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://ojs.ict.unesp.br/index.php/cob/article/view/2232 10.14295/bds.2021.v24i1.2232 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/2232 |
identifier_str_mv |
10.14295/bds.2021.v24i1.2232 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/2232/4248 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 24 No. 1 (2021): Jan - Mar / 2021 - published Dec 2020 Brazilian Dental Science; v. 24 n. 1 (2021): Jan - Mar / 2021 - published Dec 2020 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346901810118656 |