Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study

Detalhes bibliográficos
Autor(a) principal: Soares,Luís Eduardo Silva
Data de Publicação: 2005
Outros Autores: Rocha,Rick, Martin,Airton Abrahão, Pinheiro,Antonio L. B., Zampieri,Marcelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200012
Resumo: Eighteen circular blocks of resins cured either by a LED or a halogen lamp (20, 40 and 60 s), had their top (T) and bottom (B) surfaces studied using a FT-Raman spectrometer. Systematic changes in the intensity of the methacrylate C=C stretching mode at 1638 cm-1 as a function of exposure duration were observed. The calculated degree of conversion (DC) ranged from 45.0% (B) to 52.0% (T) and from 49.0% (B) to 55.0% (T) for the LED and halogen lamp, respectively. LED and halogen light produced similar DC values with 40 and 60 s of irradiation.
id SBQ-3_48ef1ae7023d1c62b851df2373a59244
oai_identifier_str oai:scielo:S0100-40422005000200012
network_acronym_str SBQ-3
network_name_str Química Nova (Online)
repository_id_str
spelling Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy studycompositesdegree of conversionFT-Raman spectroscopyEighteen circular blocks of resins cured either by a LED or a halogen lamp (20, 40 and 60 s), had their top (T) and bottom (B) surfaces studied using a FT-Raman spectrometer. Systematic changes in the intensity of the methacrylate C=C stretching mode at 1638 cm-1 as a function of exposure duration were observed. The calculated degree of conversion (DC) ranged from 45.0% (B) to 52.0% (T) and from 49.0% (B) to 55.0% (T) for the LED and halogen lamp, respectively. LED and halogen light produced similar DC values with 40 and 60 s of irradiation.Sociedade Brasileira de Química2005-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200012Química Nova v.28 n.2 2005reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422005000200012info:eu-repo/semantics/openAccessSoares,Luís Eduardo SilvaRocha,RickMartin,Airton AbrahãoPinheiro,Antonio L. B.Zampieri,Marceloeng2005-05-04T00:00:00Zoai:scielo:S0100-40422005000200012Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2005-05-04T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
title Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
spellingShingle Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
Soares,Luís Eduardo Silva
composites
degree of conversion
FT-Raman spectroscopy
title_short Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
title_full Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
title_fullStr Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
title_full_unstemmed Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
title_sort Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
author Soares,Luís Eduardo Silva
author_facet Soares,Luís Eduardo Silva
Rocha,Rick
Martin,Airton Abrahão
Pinheiro,Antonio L. B.
Zampieri,Marcelo
author_role author
author2 Rocha,Rick
Martin,Airton Abrahão
Pinheiro,Antonio L. B.
Zampieri,Marcelo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Soares,Luís Eduardo Silva
Rocha,Rick
Martin,Airton Abrahão
Pinheiro,Antonio L. B.
Zampieri,Marcelo
dc.subject.por.fl_str_mv composites
degree of conversion
FT-Raman spectroscopy
topic composites
degree of conversion
FT-Raman spectroscopy
description Eighteen circular blocks of resins cured either by a LED or a halogen lamp (20, 40 and 60 s), had their top (T) and bottom (B) surfaces studied using a FT-Raman spectrometer. Systematic changes in the intensity of the methacrylate C=C stretching mode at 1638 cm-1 as a function of exposure duration were observed. The calculated degree of conversion (DC) ranged from 45.0% (B) to 52.0% (T) and from 49.0% (B) to 55.0% (T) for the LED and halogen lamp, respectively. LED and halogen light produced similar DC values with 40 and 60 s of irradiation.
publishDate 2005
dc.date.none.fl_str_mv 2005-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422005000200012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.28 n.2 2005
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
_version_ 1750318104251990016

Registros relacionados