Properties of zirconia-containing glass-ionomer cement

Detalhes bibliográficos
Autor(a) principal: Melo,T. M. T. C.
Data de Publicação: 2019
Outros Autores: Oliveira,I. R. de, Brandim,A. S., Soares,L. E. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000300394
Resumo: Abstract Glass-ionomer cements (GICs) are used as restorative dental materials due to their capacity to chemically adhere to enamel and dentin, low thermal expansion coefficient, and compatibility with dental structures. However, these materials have low resistance to wear and fracture. In this work, zirconia-reinforced GICs were prepared to evaluate the influence of particle size as well as ZrO2 content on their properties. All evaluated composites presented compressive strength values above the pure GIC strength. The highest compressive strength values were obtained with the addition of 8.5 wt% ZrO2. The average roughness obtained was not significantly changed compared to commercial GIC and the lowest value was for the composite with 10 wt% ZrO2 (50 mesh). In the microhardness test, the highest values were obtained with the addition of 8.5 wt% of ZrO2. Therefore, the results indicated that the addition of ZrO2 to GIC is an effective alternative to improve the quality of dental restorations.
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spelling Properties of zirconia-containing glass-ionomer cementglass ionomerzirconiacompressive strengthroughnessmicrohardnessAbstract Glass-ionomer cements (GICs) are used as restorative dental materials due to their capacity to chemically adhere to enamel and dentin, low thermal expansion coefficient, and compatibility with dental structures. However, these materials have low resistance to wear and fracture. In this work, zirconia-reinforced GICs were prepared to evaluate the influence of particle size as well as ZrO2 content on their properties. All evaluated composites presented compressive strength values above the pure GIC strength. The highest compressive strength values were obtained with the addition of 8.5 wt% ZrO2. The average roughness obtained was not significantly changed compared to commercial GIC and the lowest value was for the composite with 10 wt% ZrO2 (50 mesh). In the microhardness test, the highest values were obtained with the addition of 8.5 wt% of ZrO2. Therefore, the results indicated that the addition of ZrO2 to GIC is an effective alternative to improve the quality of dental restorations.Associação Brasileira de Cerâmica2019-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000300394Cerâmica v.65 n.375 2019reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132019653752678info:eu-repo/semantics/openAccessMelo,T. M. T. C.Oliveira,I. R. deBrandim,A. S.Soares,L. E. S.eng2019-08-12T00:00:00Zoai:scielo:S0366-69132019000300394Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2019-08-12T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Properties of zirconia-containing glass-ionomer cement
title Properties of zirconia-containing glass-ionomer cement
spellingShingle Properties of zirconia-containing glass-ionomer cement
Melo,T. M. T. C.
glass ionomer
zirconia
compressive strength
roughness
microhardness
title_short Properties of zirconia-containing glass-ionomer cement
title_full Properties of zirconia-containing glass-ionomer cement
title_fullStr Properties of zirconia-containing glass-ionomer cement
title_full_unstemmed Properties of zirconia-containing glass-ionomer cement
title_sort Properties of zirconia-containing glass-ionomer cement
author Melo,T. M. T. C.
author_facet Melo,T. M. T. C.
Oliveira,I. R. de
Brandim,A. S.
Soares,L. E. S.
author_role author
author2 Oliveira,I. R. de
Brandim,A. S.
Soares,L. E. S.
author2_role author
author
author
dc.contributor.author.fl_str_mv Melo,T. M. T. C.
Oliveira,I. R. de
Brandim,A. S.
Soares,L. E. S.
dc.subject.por.fl_str_mv glass ionomer
zirconia
compressive strength
roughness
microhardness
topic glass ionomer
zirconia
compressive strength
roughness
microhardness
description Abstract Glass-ionomer cements (GICs) are used as restorative dental materials due to their capacity to chemically adhere to enamel and dentin, low thermal expansion coefficient, and compatibility with dental structures. However, these materials have low resistance to wear and fracture. In this work, zirconia-reinforced GICs were prepared to evaluate the influence of particle size as well as ZrO2 content on their properties. All evaluated composites presented compressive strength values above the pure GIC strength. The highest compressive strength values were obtained with the addition of 8.5 wt% ZrO2. The average roughness obtained was not significantly changed compared to commercial GIC and the lowest value was for the composite with 10 wt% ZrO2 (50 mesh). In the microhardness test, the highest values were obtained with the addition of 8.5 wt% of ZrO2. Therefore, the results indicated that the addition of ZrO2 to GIC is an effective alternative to improve the quality of dental restorations.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-01
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=S0366-69132019000300394
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000300394
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132019653752678
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.65 n.375 2019
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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