Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp

Detalhes bibliográficos
Autor(a) principal: Soares, Luís Eduardo Silva
Data de Publicação: 2003
Outros Autores: Martin, Airton Abrahão, Pinheiro, Antonio Luiz Barbosa, Pacheco, Marcos Tadeu Tavares
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/16352
Resumo: p. 601-608
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spelling Soares, Luís Eduardo SilvaMartin, Airton AbrahãoPinheiro, Antonio Luiz BarbosaPacheco, Marcos Tadeu Tavares2014-10-07T15:05:04Z2014-10-07T15:05:04Z20031083-3668http://repositorio.ufba.br/ri/handle/ri/16352v. 9, n. 3p. 601-608We present the results of the Vicker’s hardness test and the use of near-infrared Raman spectroscopy (RS) to measure in vitro the degree of conversion (DC) of a bis(phenol)-A-glycidyl-dimethacrylate-based composite resin, photoactivated by both a halogen lamp (power density=478 mW/cm2; 8-mm diameter spot) and an argon laser (power density=625 mW/cm2; 7-mm diameter spot). The degree of conversion was estimated by analyzing the relative intensities between the aromatic CC stretching Raman mode at 1610 cm−1 and the methacrylate CC stretching Raman mode (1640 cm−1) on top and bottom surfaces. For the hardness evaluation, the samples were embedded in polyester resin and three indentations with a 50-g load for 10 s were made on the top surface. The higher relative DC values achieved by the photoactivation of a composite resin by the argon laser suggest a better biocompatibility in the bottom surface. The correlation test showed that the higher Vicker’s hardness number (VHN) values were associated with higher DC values. The derivative analysis showed a greater curing rate from 5 to 20 s of exposure. The comparison of VHN and DC values with both light sources at each curing time showed that a small change in conversion is related to a large change in hardness. Raman spectroscopy is more sensitive to changes in the first stages of curing reaction than later ones, and the Vicker’s hardness assay is more sensitive to changes in the last stages.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2013-12-13T10:26:24Z No. of bitstreams: 1 Antonio Luiz Barbosa Pinheiro.pdf: 155840 bytes, checksum: 8d3ede1c7e33857301684b1ced36713c (MD5)Approved for entry into archive by Flávia Ferreira (flaviaccf@yahoo.com.br) on 2014-10-07T15:05:04Z (GMT) No. of bitstreams: 1 Antonio Luiz Barbosa Pinheiro.pdf: 155840 bytes, checksum: 8d3ede1c7e33857301684b1ced36713c (MD5)Made available in DSpace on 2014-10-07T15:05:04Z (GMT). No. of bitstreams: 1 Antonio Luiz Barbosa Pinheiro.pdf: 155840 bytes, checksum: 8d3ede1c7e33857301684b1ced36713c (MD5) Previous issue date: 2003http://dx.doi.org/ 10.1117/1.1688811reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAVicker’s hardnessRaman spectroscopyDegree of conversionPhotoactivationResin restorationVicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lampJournal of Biomedical Opticsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALAntonio Luiz Barbosa Pinheiro.pdfAntonio Luiz Barbosa Pinheiro.pdfapplication/pdf155840https://repositorio.ufba.br/bitstream/ri/16352/1/Antonio%20Luiz%20Barbosa%20Pinheiro.pdf8d3ede1c7e33857301684b1ced36713cMD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/16352/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTAntonio Luiz Barbosa Pinheiro.pdf.txtAntonio Luiz Barbosa Pinheiro.pdf.txtExtracted texttext/plain36212https://repositorio.ufba.br/bitstream/ri/16352/3/Antonio%20Luiz%20Barbosa%20Pinheiro.pdf.txt3ccea8ecd5fa1deb2f4dacc317e51f33MD53ri/163522022-03-10 14:02:10.476oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-03-10T17:02:10Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
dc.title.alternative.pt_BR.fl_str_mv Journal of Biomedical Optics
title Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
spellingShingle Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
Soares, Luís Eduardo Silva
Vicker’s hardness
Raman spectroscopy
Degree of conversion
Photoactivation
Resin restoration
title_short Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
title_full Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
title_fullStr Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
title_full_unstemmed Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
title_sort Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
author Soares, Luís Eduardo Silva
author_facet Soares, Luís Eduardo Silva
Martin, Airton Abrahão
Pinheiro, Antonio Luiz Barbosa
Pacheco, Marcos Tadeu Tavares
author_role author
author2 Martin, Airton Abrahão
Pinheiro, Antonio Luiz Barbosa
Pacheco, Marcos Tadeu Tavares
author2_role author
author
author
dc.contributor.author.fl_str_mv Soares, Luís Eduardo Silva
Martin, Airton Abrahão
Pinheiro, Antonio Luiz Barbosa
Pacheco, Marcos Tadeu Tavares
dc.subject.por.fl_str_mv Vicker’s hardness
Raman spectroscopy
Degree of conversion
Photoactivation
Resin restoration
topic Vicker’s hardness
Raman spectroscopy
Degree of conversion
Photoactivation
Resin restoration
description p. 601-608
publishDate 2003
dc.date.issued.fl_str_mv 2003
dc.date.accessioned.fl_str_mv 2014-10-07T15:05:04Z
dc.date.available.fl_str_mv 2014-10-07T15:05:04Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/16352
dc.identifier.issn.none.fl_str_mv 1083-3668
dc.identifier.number.pt_BR.fl_str_mv v. 9, n. 3
identifier_str_mv 1083-3668
v. 9, n. 3
url http://repositorio.ufba.br/ri/handle/ri/16352
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/ 10.1117/1.1688811
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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