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, Fabricio Aulo, Samuel, Susana Maria Werner
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/147106
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 Collares, Fabrício MezzomoLeitune, Vicente Castelo BrancoPortella, Fernando FreitasOgliari, Fabricio AuloSamuel, Susana Maria Werner2016-08-12T02:14:35Z20141677-3217http://hdl.handle.net/10183/147106000989957Aim: 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.application/pdfengBrazilian journal of oral sciences. Piracicaba. Vol. 13, no. 4 (Oct./Dec. 2014), p. 261-265Materiais odontologicos : AdesivosRestauracoes : AdesivasDental bondingDentin-bonding agentsLight-curing of dental adhesivesLong-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesiveinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000989957.pdf000989957.pdfTexto completo (inglês)application/pdf124230http://www.lume.ufrgs.br/bitstream/10183/147106/1/000989957.pdfd32b966408a07dfd88aaff1e15729df4MD51TEXT000989957.pdf.txt000989957.pdf.txtExtracted Texttext/plain26760http://www.lume.ufrgs.br/bitstream/10183/147106/2/000989957.pdf.txtafce09be32469784d87c14566b6d0c3dMD52THUMBNAIL000989957.pdf.jpg000989957.pdf.jpgGenerated Thumbnailimage/jpeg1874http://www.lume.ufrgs.br/bitstream/10183/147106/3/000989957.pdf.jpg9b150ad77967180b939535ef749634a5MD5310183/1471062018-10-29 08:33:52.706oai:www.lume.ufrgs.br:10183/147106Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-29T11:33:52Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.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
Materiais odontologicos : Adesivos
Restauracoes : Adesivas
Dental bonding
Dentin-bonding agents
Light-curing of dental adhesives
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, Fabricio Aulo
Samuel, Susana Maria Werner
author_role author
author2 Leitune, Vicente Castelo Branco
Portella, Fernando Freitas
Ogliari, Fabricio 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, Fabricio Aulo
Samuel, Susana Maria Werner
dc.subject.por.fl_str_mv Materiais odontologicos : Adesivos
Restauracoes : Adesivas
topic Materiais odontologicos : Adesivos
Restauracoes : Adesivas
Dental bonding
Dentin-bonding agents
Light-curing of dental adhesives
dc.subject.eng.fl_str_mv Dental bonding
Dentin-bonding agents
Light-curing of dental adhesives
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.issued.fl_str_mv 2014
dc.date.accessioned.fl_str_mv 2016-08-12T02:14:35Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/147106
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dc.relation.ispartof.pt_BR.fl_str_mv Brazilian journal of oral sciences. Piracicaba. Vol. 13, no. 4 (Oct./Dec. 2014), p. 261-265
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