A new silica-infiltrated Y-TZP obtained by the sol-gel method
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jdent.2016.03.004 http://hdl.handle.net/11449/172741 |
Resumo: | Objective The aim of this study was to evaluate silica infiltration into dental zirconia (VITA In-Ceram 2000 YZ, Vita Zahnfabrik) and its effects on zirconia's surface characteristics, structural homogeneity and bonding to a resin cement. Methods Infiltration was performed by immersion of the pre-sintered zirconia specimens in silica sols for five days (ZIn). Negative (pure zirconia specimens, ZCon-) and positive controls (specimens kept in water for 5 days, ZCon+) were also performed. After sintering, the groups were evaluated by X-ray diffraction (XRD), grazing angle X-ray diffraction (DRXR), scanning electron microscopy (SEM), contact angle measurements, optical profilometry, biaxial flexural test and shear bonding test. Weibull analysis was used to determine the Weibull modulus (m) and characteristic strength (σ0) of all groups. Results There were no major changes in strength for the infiltrated group, and homogeneity (m) was also increased. A layer of ZrSiO4 was formed on the surface. The bond strength to resin cement was improved after zirconia infiltration, acid conditioning and the use of an MDP primer. Conclusion The sol-gel method is an efficient and simple method to increase the homogeneity of zirconia. Infiltration also improved bonding to resin cement. Clinical significance The performance of a zirconia infiltrated by silica gel improved in at least two ways: structural homogeneity and bonding to resin cement. The infiltration is simple to perform and can be easily managed in a prosthesis laboratory. |
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A new silica-infiltrated Y-TZP obtained by the sol-gel methodBond strengthFlexural strengthSilicaSol-gelWeibullZirconiaObjective The aim of this study was to evaluate silica infiltration into dental zirconia (VITA In-Ceram 2000 YZ, Vita Zahnfabrik) and its effects on zirconia's surface characteristics, structural homogeneity and bonding to a resin cement. Methods Infiltration was performed by immersion of the pre-sintered zirconia specimens in silica sols for five days (ZIn). Negative (pure zirconia specimens, ZCon-) and positive controls (specimens kept in water for 5 days, ZCon+) were also performed. After sintering, the groups were evaluated by X-ray diffraction (XRD), grazing angle X-ray diffraction (DRXR), scanning electron microscopy (SEM), contact angle measurements, optical profilometry, biaxial flexural test and shear bonding test. Weibull analysis was used to determine the Weibull modulus (m) and characteristic strength (σ0) of all groups. Results There were no major changes in strength for the infiltrated group, and homogeneity (m) was also increased. A layer of ZrSiO4 was formed on the surface. The bond strength to resin cement was improved after zirconia infiltration, acid conditioning and the use of an MDP primer. Conclusion The sol-gel method is an efficient and simple method to increase the homogeneity of zirconia. Infiltration also improved bonding to resin cement. Clinical significance The performance of a zirconia infiltrated by silica gel improved in at least two ways: structural homogeneity and bonding to resin cement. The infiltration is simple to perform and can be easily managed in a prosthesis laboratory.Instituto Tecnologico de Aeronautica (ITA), Praça Marechal Eduardo Gomes 50Univ. Estadual Paulista (UNESP) Institute of Science and Technology at São José Dos Campos Department of Dental Materials and Prosthodontics, Eng. Francisco José Longo Avenue 777National Institute for Space Research Assoc. Laboratory of Sensors and Materials, Astronautas Avenue 1758Federal University of Rio Grande Do Norte (UFRN) Dentistry Department, 1787 Salgado Filho AvenueUniv. Estadual Paulista (UNESP) Institute of Science and Technology at São José Dos Campos Department of Dental Materials and Prosthodontics, Eng. Francisco José Longo Avenue 777Instituto Tecnologico de Aeronautica (ITA)Universidade Estadual Paulista (Unesp)Assoc. Laboratory of Sensors and MaterialsDentistry DepartmentCampos, T. M.B.Ramos, N. C. [UNESP]MacHado, J. P.B.Bottino, M. A. [UNESP]Souza, R. O.A.Melo, R. M. [UNESP]2018-12-11T17:02:00Z2018-12-11T17:02:00Z2016-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article55-61application/pdfhttp://dx.doi.org/10.1016/j.jdent.2016.03.004Journal of Dentistry, v. 48, p. 55-61.0300-5712http://hdl.handle.net/11449/17274110.1016/j.jdent.2016.03.0042-s2.0-849619433102-s2.0-84961943310.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Dentistry1,919info:eu-repo/semantics/openAccess2023-10-04T06:07:46Zoai:repositorio.unesp.br:11449/172741Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-04T06:07:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
title |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
spellingShingle |
A new silica-infiltrated Y-TZP obtained by the sol-gel method Campos, T. M.B. Bond strength Flexural strength Silica Sol-gel Weibull Zirconia |
title_short |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
title_full |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
title_fullStr |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
title_full_unstemmed |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
title_sort |
A new silica-infiltrated Y-TZP obtained by the sol-gel method |
author |
Campos, T. M.B. |
author_facet |
Campos, T. M.B. Ramos, N. C. [UNESP] MacHado, J. P.B. Bottino, M. A. [UNESP] Souza, R. O.A. Melo, R. M. [UNESP] |
author_role |
author |
author2 |
Ramos, N. C. [UNESP] MacHado, J. P.B. Bottino, M. A. [UNESP] Souza, R. O.A. Melo, R. M. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Instituto Tecnologico de Aeronautica (ITA) Universidade Estadual Paulista (Unesp) Assoc. Laboratory of Sensors and Materials Dentistry Department |
dc.contributor.author.fl_str_mv |
Campos, T. M.B. Ramos, N. C. [UNESP] MacHado, J. P.B. Bottino, M. A. [UNESP] Souza, R. O.A. Melo, R. M. [UNESP] |
dc.subject.por.fl_str_mv |
Bond strength Flexural strength Silica Sol-gel Weibull Zirconia |
topic |
Bond strength Flexural strength Silica Sol-gel Weibull Zirconia |
description |
Objective The aim of this study was to evaluate silica infiltration into dental zirconia (VITA In-Ceram 2000 YZ, Vita Zahnfabrik) and its effects on zirconia's surface characteristics, structural homogeneity and bonding to a resin cement. Methods Infiltration was performed by immersion of the pre-sintered zirconia specimens in silica sols for five days (ZIn). Negative (pure zirconia specimens, ZCon-) and positive controls (specimens kept in water for 5 days, ZCon+) were also performed. After sintering, the groups were evaluated by X-ray diffraction (XRD), grazing angle X-ray diffraction (DRXR), scanning electron microscopy (SEM), contact angle measurements, optical profilometry, biaxial flexural test and shear bonding test. Weibull analysis was used to determine the Weibull modulus (m) and characteristic strength (σ0) of all groups. Results There were no major changes in strength for the infiltrated group, and homogeneity (m) was also increased. A layer of ZrSiO4 was formed on the surface. The bond strength to resin cement was improved after zirconia infiltration, acid conditioning and the use of an MDP primer. Conclusion The sol-gel method is an efficient and simple method to increase the homogeneity of zirconia. Infiltration also improved bonding to resin cement. Clinical significance The performance of a zirconia infiltrated by silica gel improved in at least two ways: structural homogeneity and bonding to resin cement. The infiltration is simple to perform and can be easily managed in a prosthesis laboratory. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-01 2018-12-11T17:02:00Z 2018-12-11T17:02:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jdent.2016.03.004 Journal of Dentistry, v. 48, p. 55-61. 0300-5712 http://hdl.handle.net/11449/172741 10.1016/j.jdent.2016.03.004 2-s2.0-84961943310 2-s2.0-84961943310.pdf |
url |
http://dx.doi.org/10.1016/j.jdent.2016.03.004 http://hdl.handle.net/11449/172741 |
identifier_str_mv |
Journal of Dentistry, v. 48, p. 55-61. 0300-5712 10.1016/j.jdent.2016.03.004 2-s2.0-84961943310 2-s2.0-84961943310.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Dentistry 1,919 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
55-61 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1799964433782407168 |