Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer

Detalhes bibliográficos
Autor(a) principal: Miranda, Jean Soares [UNESP]
Data de Publicação: 2019
Outros Autores: de Carvalho, Ronaldo Luís Almeida [UNESP], Barcellos, Aline Serrado de Pinho [UNESP], Souza, Rodrigo Othávio Assunção e, Kimpara, Estevão Tomomitsu [UNESP], Leite, Fabíola Pessôa Pereira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.20396/BJOS.V18I0.8656589
http://hdl.handle.net/11449/201682
Resumo: Aim: evaluate the influence of etching time with hydrofluoric acid on the bond strength of a Yttrium-stabilized polycrystalline tetragonal zirconia (Y-TZP) ceramic with a superficial glaze layer and a resin cement. Methods: Y-TZP blocks were cut to obtain 40 samples. They were distributed into four groups (n = 10): control treated by sandblasting with silica-coated alumina (RS) and three glazed experimental groups with different etching times: GS20s, GS60s and GS100s. Cementation was done with a universal adhesive and a resin cement. Two cement cylinders were made in each block. After thermocycling, the shear bond test was performed. Two extra samples of each group were made to obtain profilometry, scanning electron microscopy, mapping and backscattered electron detector images. Energy dispersive spectrometry and goniometry were also performed. Results: Kruskal-Wallis and Dunn tests demonstrated bond strength differences only between the RS (22.10MPa) and the GS groups (GS20s: 8,10Mpa; GS60s: 10.49MPa; GS100s: 7.53MPa) (p = 0.001), but there was no difference among the experimental groups (p > 0.05). The contact angles were 55.33° (RS); 70.78° (GS100s); 48.20° (GS60s) and 28.73° (GS20s). ANOVA and Tukey test demonstrated similar wettability of RS to GS60s and GS100s (p > 0.05), but all the experimental groups were statistically different between them (p < 0.001). Qualitative image analysis revealed an irregular glaze distribution after etching. The thickness of the remaining glaze layer measured by profilometry was 5±1μm (GS20S), 4±1μm (GS60S) and 3±1μm (GS100s). Conclusion: The etching time of glazed zirconia did not influence the adhesive strength of the ceramic to the resin cement.
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spelling Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layerDental cementsGlassZirconiumAim: evaluate the influence of etching time with hydrofluoric acid on the bond strength of a Yttrium-stabilized polycrystalline tetragonal zirconia (Y-TZP) ceramic with a superficial glaze layer and a resin cement. Methods: Y-TZP blocks were cut to obtain 40 samples. They were distributed into four groups (n = 10): control treated by sandblasting with silica-coated alumina (RS) and three glazed experimental groups with different etching times: GS20s, GS60s and GS100s. Cementation was done with a universal adhesive and a resin cement. Two cement cylinders were made in each block. After thermocycling, the shear bond test was performed. Two extra samples of each group were made to obtain profilometry, scanning electron microscopy, mapping and backscattered electron detector images. Energy dispersive spectrometry and goniometry were also performed. Results: Kruskal-Wallis and Dunn tests demonstrated bond strength differences only between the RS (22.10MPa) and the GS groups (GS20s: 8,10Mpa; GS60s: 10.49MPa; GS100s: 7.53MPa) (p = 0.001), but there was no difference among the experimental groups (p > 0.05). The contact angles were 55.33° (RS); 70.78° (GS100s); 48.20° (GS60s) and 28.73° (GS20s). ANOVA and Tukey test demonstrated similar wettability of RS to GS60s and GS100s (p > 0.05), but all the experimental groups were statistically different between them (p < 0.001). Qualitative image analysis revealed an irregular glaze distribution after etching. The thickness of the remaining glaze layer measured by profilometry was 5±1μm (GS20S), 4±1μm (GS60S) and 3±1μm (GS100s). Conclusion: The etching time of glazed zirconia did not influence the adhesive strength of the ceramic to the resin cement.Science and Technology Institute,São Paulo State University (UNESP)Department of Dentistry Prosthodontics Unit Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do NorteDepartment of Restorative Dentistry Federal University of Juiz de ForaScience and Technology Institute,São Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)Federal University of Rio Grande do Norte (UFRN)Federal University of Juiz de ForaMiranda, Jean Soares [UNESP]de Carvalho, Ronaldo Luís Almeida [UNESP]Barcellos, Aline Serrado de Pinho [UNESP]Souza, Rodrigo Othávio Assunção eKimpara, Estevão Tomomitsu [UNESP]Leite, Fabíola Pessôa Pereira2020-12-12T02:38:59Z2020-12-12T02:38:59Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.20396/BJOS.V18I0.8656589Brazilian Journal of Oral Sciences, v. 18.1677-32251677-3217http://hdl.handle.net/11449/20168210.20396/BJOS.V18I0.86565892-s2.0-85083114952Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Oral Sciencesinfo:eu-repo/semantics/openAccess2021-10-22T20:56:15Zoai:repositorio.unesp.br:11449/201682Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:00:47.431829Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
title Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
spellingShingle Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
Miranda, Jean Soares [UNESP]
Dental cements
Glass
Zirconium
title_short Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
title_full Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
title_fullStr Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
title_full_unstemmed Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
title_sort Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
author Miranda, Jean Soares [UNESP]
author_facet Miranda, Jean Soares [UNESP]
de Carvalho, Ronaldo Luís Almeida [UNESP]
Barcellos, Aline Serrado de Pinho [UNESP]
Souza, Rodrigo Othávio Assunção e
Kimpara, Estevão Tomomitsu [UNESP]
Leite, Fabíola Pessôa Pereira
author_role author
author2 de Carvalho, Ronaldo Luís Almeida [UNESP]
Barcellos, Aline Serrado de Pinho [UNESP]
Souza, Rodrigo Othávio Assunção e
Kimpara, Estevão Tomomitsu [UNESP]
Leite, Fabíola Pessôa Pereira
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Federal University of Rio Grande do Norte (UFRN)
Federal University of Juiz de Fora
dc.contributor.author.fl_str_mv Miranda, Jean Soares [UNESP]
de Carvalho, Ronaldo Luís Almeida [UNESP]
Barcellos, Aline Serrado de Pinho [UNESP]
Souza, Rodrigo Othávio Assunção e
Kimpara, Estevão Tomomitsu [UNESP]
Leite, Fabíola Pessôa Pereira
dc.subject.por.fl_str_mv Dental cements
Glass
Zirconium
topic Dental cements
Glass
Zirconium
description Aim: evaluate the influence of etching time with hydrofluoric acid on the bond strength of a Yttrium-stabilized polycrystalline tetragonal zirconia (Y-TZP) ceramic with a superficial glaze layer and a resin cement. Methods: Y-TZP blocks were cut to obtain 40 samples. They were distributed into four groups (n = 10): control treated by sandblasting with silica-coated alumina (RS) and three glazed experimental groups with different etching times: GS20s, GS60s and GS100s. Cementation was done with a universal adhesive and a resin cement. Two cement cylinders were made in each block. After thermocycling, the shear bond test was performed. Two extra samples of each group were made to obtain profilometry, scanning electron microscopy, mapping and backscattered electron detector images. Energy dispersive spectrometry and goniometry were also performed. Results: Kruskal-Wallis and Dunn tests demonstrated bond strength differences only between the RS (22.10MPa) and the GS groups (GS20s: 8,10Mpa; GS60s: 10.49MPa; GS100s: 7.53MPa) (p = 0.001), but there was no difference among the experimental groups (p > 0.05). The contact angles were 55.33° (RS); 70.78° (GS100s); 48.20° (GS60s) and 28.73° (GS20s). ANOVA and Tukey test demonstrated similar wettability of RS to GS60s and GS100s (p > 0.05), but all the experimental groups were statistically different between them (p < 0.001). Qualitative image analysis revealed an irregular glaze distribution after etching. The thickness of the remaining glaze layer measured by profilometry was 5±1μm (GS20S), 4±1μm (GS60S) and 3±1μm (GS100s). Conclusion: The etching time of glazed zirconia did not influence the adhesive strength of the ceramic to the resin cement.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
2020-12-12T02:38:59Z
2020-12-12T02:38:59Z
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/10.20396/BJOS.V18I0.8656589
Brazilian Journal of Oral Sciences, v. 18.
1677-3225
1677-3217
http://hdl.handle.net/11449/201682
10.20396/BJOS.V18I0.8656589
2-s2.0-85083114952
url http://dx.doi.org/10.20396/BJOS.V18I0.8656589
http://hdl.handle.net/11449/201682
identifier_str_mv Brazilian Journal of Oral Sciences, v. 18.
1677-3225
1677-3217
10.20396/BJOS.V18I0.8656589
2-s2.0-85083114952
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Oral Sciences
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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)
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