Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants

Detalhes bibliográficos
Autor(a) principal: Santos Jr,Emanuel
Data de Publicação: 2013
Outros Autores: Nascimento,Kelma D. P., Camargo Jr,Sérgio S.
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=S1516-14392013000500027
Resumo: This work investigates the correlation between the in-vitro wear resistance and the nanomechanical properties of dental sealants commercially available. Mechanical properties, namely hardness (H) and elastic modulus (E), were assessed by nanoindentation technique. The coated samples presented lower H and E values than the Z250 composite resin substrate. Such measurements were used to calculate H/E ratios. Wear tests were carried out in water by using a pin-on-plate apparatus. Scars formed on the samples were qualitatively examined by optical microscopy, while their wear depths were measured by contact profilometry. Based on the findings, an empirical correlation between the wear depths and H/E was obtained. A high H/E ratio was associated to surfaces with enhanced wear resistance. For the tribological conditions here employed, the H/E ratio could be, therefore, considered a useful parameter for ranking the in-vitro wear of dental sealants.
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spelling Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealantslight-cured compositesdental sealantssurface sealershardnesselastic modulusnanoindentationtribologywearwear resistancedentistrybiomaterialsThis work investigates the correlation between the in-vitro wear resistance and the nanomechanical properties of dental sealants commercially available. Mechanical properties, namely hardness (H) and elastic modulus (E), were assessed by nanoindentation technique. The coated samples presented lower H and E values than the Z250 composite resin substrate. Such measurements were used to calculate H/E ratios. Wear tests were carried out in water by using a pin-on-plate apparatus. Scars formed on the samples were qualitatively examined by optical microscopy, while their wear depths were measured by contact profilometry. Based on the findings, an empirical correlation between the wear depths and H/E was obtained. A high H/E ratio was associated to surfaces with enhanced wear resistance. For the tribological conditions here employed, the H/E ratio could be, therefore, considered a useful parameter for ranking the in-vitro wear of dental sealants.ABM, ABC, ABPol2013-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000500027Materials Research v.16 n.5 2013reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000097info:eu-repo/semantics/openAccessSantos Jr,EmanuelNascimento,Kelma D. P.Camargo Jr,Sérgio S.eng2013-10-18T00:00:00Zoai:scielo:S1516-14392013000500027Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2013-10-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
title Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
spellingShingle Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
Santos Jr,Emanuel
light-cured composites
dental sealants
surface sealers
hardness
elastic modulus
nanoindentation
tribology
wear
wear resistance
dentistry
biomaterials
title_short Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
title_full Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
title_fullStr Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
title_full_unstemmed Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
title_sort Relation between in-vitro wear and nanomechanical properties of commercial light-cured dental composites coated with surface sealants
author Santos Jr,Emanuel
author_facet Santos Jr,Emanuel
Nascimento,Kelma D. P.
Camargo Jr,Sérgio S.
author_role author
author2 Nascimento,Kelma D. P.
Camargo Jr,Sérgio S.
author2_role author
author
dc.contributor.author.fl_str_mv Santos Jr,Emanuel
Nascimento,Kelma D. P.
Camargo Jr,Sérgio S.
dc.subject.por.fl_str_mv light-cured composites
dental sealants
surface sealers
hardness
elastic modulus
nanoindentation
tribology
wear
wear resistance
dentistry
biomaterials
topic light-cured composites
dental sealants
surface sealers
hardness
elastic modulus
nanoindentation
tribology
wear
wear resistance
dentistry
biomaterials
description This work investigates the correlation between the in-vitro wear resistance and the nanomechanical properties of dental sealants commercially available. Mechanical properties, namely hardness (H) and elastic modulus (E), were assessed by nanoindentation technique. The coated samples presented lower H and E values than the Z250 composite resin substrate. Such measurements were used to calculate H/E ratios. Wear tests were carried out in water by using a pin-on-plate apparatus. Scars formed on the samples were qualitatively examined by optical microscopy, while their wear depths were measured by contact profilometry. Based on the findings, an empirical correlation between the wear depths and H/E was obtained. A high H/E ratio was associated to surfaces with enhanced wear resistance. For the tribological conditions here employed, the H/E ratio could be, therefore, considered a useful parameter for ranking the in-vitro wear of dental sealants.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-01
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=S1516-14392013000500027
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000500027
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000097
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.5 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
_version_ 1754212662951018496

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