Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572018000100441 |
Resumo: | Abstract Although resin composites are widely used in the clinical practice, the development of recurrent caries at composite-tooth interface still remains as one of the principal shortcomings to be overcome in this field. Objectives To evaluate the activity against S. mutans biofilm of model resin composites incorporating different concentrations of ZnO-nanoparticles (ZnO-NP) and characterize their physicochemical properties. Materials and Methods Different concentrations of ZnO-NP (wt.%): E1=0, E2=0.5, E3=1, E4=2, E5=5 and E6=10 were incorporated into a model resin composite consisting of Bis-GMA-TEGDMA and barium borosilicate particles. The activity against S. mutans biofilm was evaluated by metabolic activity and lactic acid production. The following physicochemical properties were characterized: degree of conversion (DC%), flexural strength (FS), elastic modulus (EM), hardness (KHN), water sorption (Wsp), water solubility (Wsl) and translucency (TP). Results E3, E4, E5 and E6 decreased the biofilm metabolic activity and E5 and E6 decreased the lactic acid production (p<0.05). E6 presented the lowest DC% (p<0.05). No significant difference in FS and EM was found for all resin composites (p>0.05). E5 and E6 presented the lowest values of KHN (p<0.05). E6 presented a higher Wsp than E1 (p<0.05) and the highest Wsl (p<0.05). The translucency significantly decreased as the ZnO- NP concentration increased (p<0.05). Conclusions The incorporation of 2 – 5 wt.% of ZnO-NP could endow antibacterial activity to resin composites, without jeopardizing their physicochemical properties. |
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oai:scielo:S1678-77572018000100441 |
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USP-17 |
network_name_str |
Journal of applied oral science (Online) |
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Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterizationResin compositeZinc oxideNanoparticlesS. mutansPhysicochemical propertiesAbstract Although resin composites are widely used in the clinical practice, the development of recurrent caries at composite-tooth interface still remains as one of the principal shortcomings to be overcome in this field. Objectives To evaluate the activity against S. mutans biofilm of model resin composites incorporating different concentrations of ZnO-nanoparticles (ZnO-NP) and characterize their physicochemical properties. Materials and Methods Different concentrations of ZnO-NP (wt.%): E1=0, E2=0.5, E3=1, E4=2, E5=5 and E6=10 were incorporated into a model resin composite consisting of Bis-GMA-TEGDMA and barium borosilicate particles. The activity against S. mutans biofilm was evaluated by metabolic activity and lactic acid production. The following physicochemical properties were characterized: degree of conversion (DC%), flexural strength (FS), elastic modulus (EM), hardness (KHN), water sorption (Wsp), water solubility (Wsl) and translucency (TP). Results E3, E4, E5 and E6 decreased the biofilm metabolic activity and E5 and E6 decreased the lactic acid production (p<0.05). E6 presented the lowest DC% (p<0.05). No significant difference in FS and EM was found for all resin composites (p>0.05). E5 and E6 presented the lowest values of KHN (p<0.05). E6 presented a higher Wsp than E1 (p<0.05) and the highest Wsl (p<0.05). The translucency significantly decreased as the ZnO- NP concentration increased (p<0.05). Conclusions The incorporation of 2 – 5 wt.% of ZnO-NP could endow antibacterial activity to resin composites, without jeopardizing their physicochemical properties.Faculdade De Odontologia De Bauru - USP2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572018000100441Journal of Applied Oral Science v.26 2018reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-7757-2017-0270info:eu-repo/semantics/openAccessBrandão,Natasha LamegoPortela,Maristela BarbosaMaia,Luciane CopleAntônio,AndréaSilva,Vanessa Loureiro Moreira eSilva,Eduardo Moreira daeng2018-07-03T00:00:00Zoai:scielo:S1678-77572018000100441Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2018-07-03T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
title |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
spellingShingle |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization Brandão,Natasha Lamego Resin composite Zinc oxide Nanoparticles S. mutans Physicochemical properties |
title_short |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
title_full |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
title_fullStr |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
title_full_unstemmed |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
title_sort |
Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization |
author |
Brandão,Natasha Lamego |
author_facet |
Brandão,Natasha Lamego Portela,Maristela Barbosa Maia,Luciane Cople Antônio,Andréa Silva,Vanessa Loureiro Moreira e Silva,Eduardo Moreira da |
author_role |
author |
author2 |
Portela,Maristela Barbosa Maia,Luciane Cople Antônio,Andréa Silva,Vanessa Loureiro Moreira e Silva,Eduardo Moreira da |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Brandão,Natasha Lamego Portela,Maristela Barbosa Maia,Luciane Cople Antônio,Andréa Silva,Vanessa Loureiro Moreira e Silva,Eduardo Moreira da |
dc.subject.por.fl_str_mv |
Resin composite Zinc oxide Nanoparticles S. mutans Physicochemical properties |
topic |
Resin composite Zinc oxide Nanoparticles S. mutans Physicochemical properties |
description |
Abstract Although resin composites are widely used in the clinical practice, the development of recurrent caries at composite-tooth interface still remains as one of the principal shortcomings to be overcome in this field. Objectives To evaluate the activity against S. mutans biofilm of model resin composites incorporating different concentrations of ZnO-nanoparticles (ZnO-NP) and characterize their physicochemical properties. Materials and Methods Different concentrations of ZnO-NP (wt.%): E1=0, E2=0.5, E3=1, E4=2, E5=5 and E6=10 were incorporated into a model resin composite consisting of Bis-GMA-TEGDMA and barium borosilicate particles. The activity against S. mutans biofilm was evaluated by metabolic activity and lactic acid production. The following physicochemical properties were characterized: degree of conversion (DC%), flexural strength (FS), elastic modulus (EM), hardness (KHN), water sorption (Wsp), water solubility (Wsl) and translucency (TP). Results E3, E4, E5 and E6 decreased the biofilm metabolic activity and E5 and E6 decreased the lactic acid production (p<0.05). E6 presented the lowest DC% (p<0.05). No significant difference in FS and EM was found for all resin composites (p>0.05). E5 and E6 presented the lowest values of KHN (p<0.05). E6 presented a higher Wsp than E1 (p<0.05) and the highest Wsl (p<0.05). The translucency significantly decreased as the ZnO- NP concentration increased (p<0.05). Conclusions The incorporation of 2 – 5 wt.% of ZnO-NP could endow antibacterial activity to resin composites, without jeopardizing their physicochemical properties. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
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=S1678-77572018000100441 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572018000100441 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-7757-2017-0270 |
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 |
Faculdade De Odontologia De Bauru - USP |
publisher.none.fl_str_mv |
Faculdade De Odontologia De Bauru - USP |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science v.26 2018 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1748936439591075840 |