Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid

Detalhes bibliográficos
Autor(a) principal: Venter,Sandro Aurélio de Souza
Data de Publicação: 2013
Outros Autores: Fávaro,Silvia Luciana, Radovanovic,Eduardo, Girotto,Emerson Marcelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400029
Resumo: This paper presents a factorial design (mixture design) used to analyze the hardness and degree of monomer conversion into composites containing conventional monomers and an organic-inorganic hybrid polymer-based methacryloyloxypropyl trimethoxysilane (MEMO). For this purpose, resins (composites with SiO2) were formulated with the hybrid polymer (polycondensed, pMEMO), and two conventional monomers used in dentistry, bisphenol-A dimethacrylate (Bis-GMA) and triethyleneglycol dimethacrylate (TEGDMA). The resins were characterized through the degree of monomer conversion and Vickers hardness, and the pMEMO by means of FTIR and ¹H NMR. The results showed an increase in hardness for resins containing the hybrid material relative to the resins containing only conventional monomers. The mathematical model adjusted to the experimental data yielded an optimized formulation, which presented a higher hardness value (48.88 HV).
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spelling Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybridThis paper presents a factorial design (mixture design) used to analyze the hardness and degree of monomer conversion into composites containing conventional monomers and an organic-inorganic hybrid polymer-based methacryloyloxypropyl trimethoxysilane (MEMO). For this purpose, resins (composites with SiO2) were formulated with the hybrid polymer (polycondensed, pMEMO), and two conventional monomers used in dentistry, bisphenol-A dimethacrylate (Bis-GMA) and triethyleneglycol dimethacrylate (TEGDMA). The resins were characterized through the degree of monomer conversion and Vickers hardness, and the pMEMO by means of FTIR and ¹H NMR. The results showed an increase in hardness for resins containing the hybrid material relative to the resins containing only conventional monomers. The mathematical model adjusted to the experimental data yielded an optimized formulation, which presented a higher hardness value (48.88 HV).ABM, ABC, ABPol2013-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400029Materials Research v.16 n.4 2013reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000089info:eu-repo/semantics/openAccessVenter,Sandro Aurélio de SouzaFávaro,Silvia LucianaRadovanovic,EduardoGirotto,Emerson Marceloeng2013-08-02T00:00:00Zoai:scielo:S1516-14392013000400029Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2013-08-02T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
title Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
spellingShingle Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
Venter,Sandro Aurélio de Souza
title_short Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
title_full Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
title_fullStr Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
title_full_unstemmed Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
title_sort Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
author Venter,Sandro Aurélio de Souza
author_facet Venter,Sandro Aurélio de Souza
Fávaro,Silvia Luciana
Radovanovic,Eduardo
Girotto,Emerson Marcelo
author_role author
author2 Fávaro,Silvia Luciana
Radovanovic,Eduardo
Girotto,Emerson Marcelo
author2_role author
author
author
dc.contributor.author.fl_str_mv Venter,Sandro Aurélio de Souza
Fávaro,Silvia Luciana
Radovanovic,Eduardo
Girotto,Emerson Marcelo
description This paper presents a factorial design (mixture design) used to analyze the hardness and degree of monomer conversion into composites containing conventional monomers and an organic-inorganic hybrid polymer-based methacryloyloxypropyl trimethoxysilane (MEMO). For this purpose, resins (composites with SiO2) were formulated with the hybrid polymer (polycondensed, pMEMO), and two conventional monomers used in dentistry, bisphenol-A dimethacrylate (Bis-GMA) and triethyleneglycol dimethacrylate (TEGDMA). The resins were characterized through the degree of monomer conversion and Vickers hardness, and the pMEMO by means of FTIR and ¹H NMR. The results showed an increase in hardness for resins containing the hybrid material relative to the resins containing only conventional monomers. The mathematical model adjusted to the experimental data yielded an optimized formulation, which presented a higher hardness value (48.88 HV).
publishDate 2013
dc.date.none.fl_str_mv 2013-08-01
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=S1516-14392013000400029
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400029
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000089
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.16 n.4 2013
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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