Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness
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/10.1177/0022034518819477 http://hdl.handle.net/11449/188748 |
Resumo: | Novel silica-based infiltrations on the surface of zirconia have the potential to improve their bondability, allowing for the etching/silane adhesive bonding technique. Nonetheless, adhesively bonded joints are subject to mixed tensile and shear stresses when the restoration is in occlusal service. Thus, we aimed to investigate the effect of 2 novel silica-based infiltrations on the interfacial toughness of adhesively bonded zirconia using the Brazil nut method, which allows for controlled types of stresses to be applied at the interfaces. In total, 150 3Y-TZP (In-Ceram YZ; Vita) Brazil nuts were machined and randomly assigned to 3 groups: C, control (air abraded); SG, sol-gel silica infiltration; and GI, glass infiltration. SG specimens were immersed twice in silicic acid for 20 min and dried (100°C, 1 h). GI specimens were presintered (1,400°C, 1 h) before a glass powder slurry was applied to the intaglio surface. All specimens were then sintered (1,530°C, 2 h). Following adhesive bonding (Panavia F 2.0, Kuraray) and water storage (37°C) for 10 d, the Brazil nuts were subdivided into groups baseline and aged (40,000 thermal cycles between 5°C and 55°C, with a dwell time of 30 s). The Brazil nuts were subjected to axial-loading tests using various inclinations (precrack angle with load direction): Θ = 0°, 5°, 10°, 15°, or 25°, which define the stress type at the interface, from pure tension (0°) to increasing levels of shear. Under pure tension (0°), GI yielded superior interfacial fracture energy, SG and C were similar, and aging had no effect. Under predominantly shear stresses (25°), aging significantly decreased interfacial fracture energy of C and SG, while GI remained stable and was superior. The glass infiltration of the zirconia intaglio surface increases its adhesive bonding interfacial toughness. The sol-gel silica infiltration method requires improvement to obtain a homogeneous surface infiltration and an enhanced bond strength. |
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Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughnessbonding forceceramicsfracture strengthresin cementsshear strengthtensile strengthNovel silica-based infiltrations on the surface of zirconia have the potential to improve their bondability, allowing for the etching/silane adhesive bonding technique. Nonetheless, adhesively bonded joints are subject to mixed tensile and shear stresses when the restoration is in occlusal service. Thus, we aimed to investigate the effect of 2 novel silica-based infiltrations on the interfacial toughness of adhesively bonded zirconia using the Brazil nut method, which allows for controlled types of stresses to be applied at the interfaces. In total, 150 3Y-TZP (In-Ceram YZ; Vita) Brazil nuts were machined and randomly assigned to 3 groups: C, control (air abraded); SG, sol-gel silica infiltration; and GI, glass infiltration. SG specimens were immersed twice in silicic acid for 20 min and dried (100°C, 1 h). GI specimens were presintered (1,400°C, 1 h) before a glass powder slurry was applied to the intaglio surface. All specimens were then sintered (1,530°C, 2 h). Following adhesive bonding (Panavia F 2.0, Kuraray) and water storage (37°C) for 10 d, the Brazil nuts were subdivided into groups baseline and aged (40,000 thermal cycles between 5°C and 55°C, with a dwell time of 30 s). The Brazil nuts were subjected to axial-loading tests using various inclinations (precrack angle with load direction): Θ = 0°, 5°, 10°, 15°, or 25°, which define the stress type at the interface, from pure tension (0°) to increasing levels of shear. Under pure tension (0°), GI yielded superior interfacial fracture energy, SG and C were similar, and aging had no effect. Under predominantly shear stresses (25°), aging significantly decreased interfacial fracture energy of C and SG, while GI remained stable and was superior. The glass infiltration of the zirconia intaglio surface increases its adhesive bonding interfacial toughness. The sol-gel silica infiltration method requires improvement to obtain a homogeneous surface infiltration and an enhanced bond strength.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)National Institute of Dental and Craniofacial ResearchDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of São José dos Campos São Paulo State University (UNESP)Department of Biomaterials and Biomimetics New York University College of DentistryDepartment of Physics Aeronautical Technology Institute (ITA)Department of Civil and Environmental Engineering University of ConnecticutDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of São José dos Campos São Paulo State University (UNESP)FAPESP: 2015/16387-7FAPESP: 2016/07920-6FAPESP: 2016/20001-0National Institute of Dental and Craniofacial Research: R01DE017925National Institute of Dental and Craniofacial Research: R01DE026279National Institute of Dental and Craniofacial Research: R01DE026772Universidade Estadual Paulista (Unesp)New York University College of DentistryAeronautical Technology Institute (ITA)University of ConnecticutRamos, N. C. [UNESP]Kaizer, M. R.Campos, T. M.B.Kim, J.Zhang, Y.Melo, R. M. [UNESP]2019-10-06T16:17:58Z2019-10-06T16:17:58Z2019-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article423-429http://dx.doi.org/10.1177/0022034518819477Journal of Dental Research, v. 98, n. 4, p. 423-429, 2019.1544-05910022-0345http://hdl.handle.net/11449/18874810.1177/00220345188194772-s2.0-85061793394Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Dental Researchinfo:eu-repo/semantics/openAccess2021-10-23T05:33:16Zoai:repositorio.unesp.br:11449/188748Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T05:33:16Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
title |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
spellingShingle |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness Ramos, N. C. [UNESP] bonding force ceramics fracture strength resin cements shear strength tensile strength |
title_short |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
title_full |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
title_fullStr |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
title_full_unstemmed |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
title_sort |
Silica-Based Infiltrations for Enhanced Zirconia-Resin Interface Toughness |
author |
Ramos, N. C. [UNESP] |
author_facet |
Ramos, N. C. [UNESP] Kaizer, M. R. Campos, T. M.B. Kim, J. Zhang, Y. Melo, R. M. [UNESP] |
author_role |
author |
author2 |
Kaizer, M. R. Campos, T. M.B. Kim, J. Zhang, Y. Melo, R. M. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) New York University College of Dentistry Aeronautical Technology Institute (ITA) University of Connecticut |
dc.contributor.author.fl_str_mv |
Ramos, N. C. [UNESP] Kaizer, M. R. Campos, T. M.B. Kim, J. Zhang, Y. Melo, R. M. [UNESP] |
dc.subject.por.fl_str_mv |
bonding force ceramics fracture strength resin cements shear strength tensile strength |
topic |
bonding force ceramics fracture strength resin cements shear strength tensile strength |
description |
Novel silica-based infiltrations on the surface of zirconia have the potential to improve their bondability, allowing for the etching/silane adhesive bonding technique. Nonetheless, adhesively bonded joints are subject to mixed tensile and shear stresses when the restoration is in occlusal service. Thus, we aimed to investigate the effect of 2 novel silica-based infiltrations on the interfacial toughness of adhesively bonded zirconia using the Brazil nut method, which allows for controlled types of stresses to be applied at the interfaces. In total, 150 3Y-TZP (In-Ceram YZ; Vita) Brazil nuts were machined and randomly assigned to 3 groups: C, control (air abraded); SG, sol-gel silica infiltration; and GI, glass infiltration. SG specimens were immersed twice in silicic acid for 20 min and dried (100°C, 1 h). GI specimens were presintered (1,400°C, 1 h) before a glass powder slurry was applied to the intaglio surface. All specimens were then sintered (1,530°C, 2 h). Following adhesive bonding (Panavia F 2.0, Kuraray) and water storage (37°C) for 10 d, the Brazil nuts were subdivided into groups baseline and aged (40,000 thermal cycles between 5°C and 55°C, with a dwell time of 30 s). The Brazil nuts were subjected to axial-loading tests using various inclinations (precrack angle with load direction): Θ = 0°, 5°, 10°, 15°, or 25°, which define the stress type at the interface, from pure tension (0°) to increasing levels of shear. Under pure tension (0°), GI yielded superior interfacial fracture energy, SG and C were similar, and aging had no effect. Under predominantly shear stresses (25°), aging significantly decreased interfacial fracture energy of C and SG, while GI remained stable and was superior. The glass infiltration of the zirconia intaglio surface increases its adhesive bonding interfacial toughness. The sol-gel silica infiltration method requires improvement to obtain a homogeneous surface infiltration and an enhanced bond strength. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:17:58Z 2019-10-06T16:17:58Z 2019-04-01 |
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/10.1177/0022034518819477 Journal of Dental Research, v. 98, n. 4, p. 423-429, 2019. 1544-0591 0022-0345 http://hdl.handle.net/11449/188748 10.1177/0022034518819477 2-s2.0-85061793394 |
url |
http://dx.doi.org/10.1177/0022034518819477 http://hdl.handle.net/11449/188748 |
identifier_str_mv |
Journal of Dental Research, v. 98, n. 4, p. 423-429, 2019. 1544-0591 0022-0345 10.1177/0022034518819477 2-s2.0-85061793394 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Dental Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
423-429 |
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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1799965554011799552 |