Different surface treatment protocols of a Y-TZP ceramic with a superficial glaze layer
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
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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Repositório Institucional da UNESP |
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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) |
repository.mail.fl_str_mv |
|
_version_ |
1808128593728897024 |