Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive

Detalhes bibliográficos
Autor(a) principal: Collares, Fabrício Mezzomo
Data de Publicação: 2014
Outros Autores: Leitune, Vicente Castelo Branco, Portella, Fernando Freitas, Ogliari, Fabrício Aulo, Samuel, Susana Maria Werner
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian journal of oral sciences (Online)
Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640855
Resumo: Aim: To evaluate the long-term bond strength, degree of conversion and resistance to degradation in ethanol of HEMA-containing and HEMA-free model adhesive resins of a three-step etch-andrinse adhesive system. Methods: The superficial dentin of 16 bovine incisor teeth was exposed, and the teeth were divided in two groups according to the HEMA concentration in the experimental adhesive (0% and 15%). In each tooth were made 6 cylindrical composite restorations. Half of the tooth restorations were submitted to microshear bond strength test after 24 h and the other half after 6 months. Degree of conversion of experimental resins was determined by Fourier transform infrared spectroscopy. Crosslink density was indirectly determined by the Knoop hardness of five specimens per group before and after immersion in ethanol for 6 h. Results: The group with 0% HEMA showed no difference in bond strength as compared to the group with 15% HEMA after 24 h or 6 months. There was no difference in degree of conversion and crosslink density between groups. Conclusions: HEMA content of the adhesive resin did not influence the bond strength to dentin, degree of conversion or resistance to degradation in ethanol.
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spelling Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesiveDental bondingDentin-bonding agentsLight-curing of dental adhesivesOdontologiaAim: To evaluate the long-term bond strength, degree of conversion and resistance to degradation in ethanol of HEMA-containing and HEMA-free model adhesive resins of a three-step etch-andrinse adhesive system. Methods: The superficial dentin of 16 bovine incisor teeth was exposed, and the teeth were divided in two groups according to the HEMA concentration in the experimental adhesive (0% and 15%). In each tooth were made 6 cylindrical composite restorations. Half of the tooth restorations were submitted to microshear bond strength test after 24 h and the other half after 6 months. Degree of conversion of experimental resins was determined by Fourier transform infrared spectroscopy. Crosslink density was indirectly determined by the Knoop hardness of five specimens per group before and after immersion in ethanol for 6 h. Results: The group with 0% HEMA showed no difference in bond strength as compared to the group with 15% HEMA after 24 h or 6 months. There was no difference in degree of conversion and crosslink density between groups. Conclusions: HEMA content of the adhesive resin did not influence the bond strength to dentin, degree of conversion or resistance to degradation in ethanol.Universidade Estadual de Campinas2014-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640855Brazilian Journal of Oral Sciences; v. 13 n. 4 (2014): Oct./Dec.; 261-265Brazilian Journal of Oral Sciences; Vol. 13 No. 4 (2014): Oct./Dec.; 261-2651677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640855/8389Copyright (c) 2015 Fabrício Mezzomo Collares, Vicente Castelo Branco Leitune, Fernando Freitas Portella, Fabrício Aulo Ogliari, Susana Maria Werner Samuelhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCollares, Fabrício MezzomoLeitune, Vicente Castelo BrancoPortella, Fernando FreitasOgliari, Fabrício AuloSamuel, Susana Maria Werner2023-10-02T12:05:10Zoai:ojs.periodicos.sbu.unicamp.br:article/8640855Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2023-10-02T12:05:10Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
title Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
spellingShingle Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
Collares, Fabrício Mezzomo
Dental bonding
Dentin-bonding agents
Light-curing of dental adhesives
Odontologia
title_short Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
title_full Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
title_fullStr Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
title_full_unstemmed Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
title_sort Long-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesive
author Collares, Fabrício Mezzomo
author_facet Collares, Fabrício Mezzomo
Leitune, Vicente Castelo Branco
Portella, Fernando Freitas
Ogliari, Fabrício Aulo
Samuel, Susana Maria Werner
author_role author
author2 Leitune, Vicente Castelo Branco
Portella, Fernando Freitas
Ogliari, Fabrício Aulo
Samuel, Susana Maria Werner
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Collares, Fabrício Mezzomo
Leitune, Vicente Castelo Branco
Portella, Fernando Freitas
Ogliari, Fabrício Aulo
Samuel, Susana Maria Werner
dc.subject.por.fl_str_mv Dental bonding
Dentin-bonding agents
Light-curing of dental adhesives
Odontologia
topic Dental bonding
Dentin-bonding agents
Light-curing of dental adhesives
Odontologia
description Aim: To evaluate the long-term bond strength, degree of conversion and resistance to degradation in ethanol of HEMA-containing and HEMA-free model adhesive resins of a three-step etch-andrinse adhesive system. Methods: The superficial dentin of 16 bovine incisor teeth was exposed, and the teeth were divided in two groups according to the HEMA concentration in the experimental adhesive (0% and 15%). In each tooth were made 6 cylindrical composite restorations. Half of the tooth restorations were submitted to microshear bond strength test after 24 h and the other half after 6 months. Degree of conversion of experimental resins was determined by Fourier transform infrared spectroscopy. Crosslink density was indirectly determined by the Knoop hardness of five specimens per group before and after immersion in ethanol for 6 h. Results: The group with 0% HEMA showed no difference in bond strength as compared to the group with 15% HEMA after 24 h or 6 months. There was no difference in degree of conversion and crosslink density between groups. Conclusions: HEMA content of the adhesive resin did not influence the bond strength to dentin, degree of conversion or resistance to degradation in ethanol.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-30
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://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640855
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640855
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640855/8389
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Estadual de Campinas
publisher.none.fl_str_mv Universidade Estadual de Campinas
dc.source.none.fl_str_mv Brazilian Journal of Oral Sciences; v. 13 n. 4 (2014): Oct./Dec.; 261-265
Brazilian Journal of Oral Sciences; Vol. 13 No. 4 (2014): Oct./Dec.; 261-265
1677-3225
reponame:Brazilian journal of oral sciences (Online)
instname:Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
instname_str Universidade Estadual de Campinas (UNICAMP)
instacron_str UNICAMP
institution UNICAMP
reponame_str Brazilian journal of oral sciences (Online)
collection Brazilian journal of oral sciences (Online)
repository.name.fl_str_mv Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)
repository.mail.fl_str_mv brjorals@fop.unicamp.br||brjorals@fop.unicamp.br
_version_ 1800216397730545664

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