Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.dental.2022.04.021 http://hdl.handle.net/11449/240020 |
Resumo: | Objectives: This study aimed to evaluate the impact of mechanical fatigue cycling using the step-stress approach along with hydrothermaldegradation (134 ºC with a constant pressure of 2 bars for 20 h), and a novel intercalated hydrothermal/fatigue aging protocol on different aspects of the aging resistance of three generations of dental zirconias. Methods: “Y”Z T (VITA), INCORIS “T”ZI (Dentsply Sirona) and “K”ATANA UTML (Noritake Kuraray) − 1st, 2nd and 3rd generation, respectively-, zirconia disks (N = 153), were divided into 6 groups (n = 3) for monotonic testing and 9 groups (n = 15) for mechanical fatigue testing, according to 3 proposed treatments for each zirconia: CF (control – only mechanical fatigue cycling); AF (aging in hydrothermal reactor at 134 °C for 20 h + mechanical fatigue cycling); AFA (Alternating protocol: 4 steps of 5 h of hydrothermal aging intercalated with mechanical fatigue cycling). Mechanical fatigue aging was performed according to the step-stress approach through biaxial flexural setup (piston-on-3-balls, initial strength: 100 MPa, step: 50 MPa/10,000, frequency: 20 Hz) until failure. Data were analyzed using Kaplan-Meier and Mantel-Cox test (α = 0.05), in addition to Weibull analysis. Fractured disks were analyzed in stereomicroscope, Scanning Electron Microscopy and X-Ray Diffraction. Results: Continuous hydrothermal and mechanical fatigue cycling decreased the fatigue strength of YAF group (516 ± 38 MPa), while the alternating protocol increased it (730 ± 58 MPa). KATANA UTML showed no differences for both treatments and did not undergo t-m phase transformation. The TAF group showed the highest fatigue strength (810 ± 76 MPa) and cycles for failure (147,000.00 cycles). The fracture origin for all specimens was on the tensile side in pre-existing defects. Significance: INCORIS TZI zirconia had higher fatigue strength and survival rates after hydrothermal and mechanical fatigue aging. Although less resistant, KATANA UTML did not suffer chemical degradation. |
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Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconiasDegradationDental ceramicsFatigueY-TZPZirconiaObjectives: This study aimed to evaluate the impact of mechanical fatigue cycling using the step-stress approach along with hydrothermaldegradation (134 ºC with a constant pressure of 2 bars for 20 h), and a novel intercalated hydrothermal/fatigue aging protocol on different aspects of the aging resistance of three generations of dental zirconias. Methods: “Y”Z T (VITA), INCORIS “T”ZI (Dentsply Sirona) and “K”ATANA UTML (Noritake Kuraray) − 1st, 2nd and 3rd generation, respectively-, zirconia disks (N = 153), were divided into 6 groups (n = 3) for monotonic testing and 9 groups (n = 15) for mechanical fatigue testing, according to 3 proposed treatments for each zirconia: CF (control – only mechanical fatigue cycling); AF (aging in hydrothermal reactor at 134 °C for 20 h + mechanical fatigue cycling); AFA (Alternating protocol: 4 steps of 5 h of hydrothermal aging intercalated with mechanical fatigue cycling). Mechanical fatigue aging was performed according to the step-stress approach through biaxial flexural setup (piston-on-3-balls, initial strength: 100 MPa, step: 50 MPa/10,000, frequency: 20 Hz) until failure. Data were analyzed using Kaplan-Meier and Mantel-Cox test (α = 0.05), in addition to Weibull analysis. Fractured disks were analyzed in stereomicroscope, Scanning Electron Microscopy and X-Ray Diffraction. Results: Continuous hydrothermal and mechanical fatigue cycling decreased the fatigue strength of YAF group (516 ± 38 MPa), while the alternating protocol increased it (730 ± 58 MPa). KATANA UTML showed no differences for both treatments and did not undergo t-m phase transformation. The TAF group showed the highest fatigue strength (810 ± 76 MPa) and cycles for failure (147,000.00 cycles). The fracture origin for all specimens was on the tensile side in pre-existing defects. Significance: INCORIS TZI zirconia had higher fatigue strength and survival rates after hydrothermal and mechanical fatigue aging. Although less resistant, KATANA UTML did not suffer chemical degradation.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Post-Graduate Program in Restorative Dentistry (Prosthodontics Unit) São Paulo State University (UNESP) Science and Technology Institute, São PauloPost-Graduate Program in Oral Science (Prosthodontics Unit) Faculty of Odontology Federal University of Santa Maria - UFSM, Rio Grande do SulPhysics Departament Aeronautics Technological Institute (ITA), São PauloDepartment of Dental Materials and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology, São PauloPost-Graduate Program in Restorative Dentistry (Prosthodontics Unit) São Paulo State University (UNESP) Science and Technology Institute, São PauloDepartment of Dental Materials and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology, São PauloCAPES: # 001Universidade Estadual Paulista (UNESP)Universidade Federal de Sergipe (UFS)Aeronautics Technological Institute (ITA)Prado, Pedro Henrique Condé Oliveira [UNESP]Dapieve, Kiara SerafiniCampos, Tiago Moreira BastosValandro, Luiz FelipeMelo, Renata Marques de [UNESP]2023-03-01T19:57:56Z2023-03-01T19:57:56Z2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1060-1071http://dx.doi.org/10.1016/j.dental.2022.04.021Dental Materials, v. 38, n. 6, p. 1060-1071, 2022.0109-5641http://hdl.handle.net/11449/24002010.1016/j.dental.2022.04.0212-s2.0-85129700530Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengDental Materialsinfo:eu-repo/semantics/openAccess2023-03-01T19:57:56Zoai:repositorio.unesp.br:11449/240020Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-01T19:57:56Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
title |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
spellingShingle |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias Prado, Pedro Henrique Condé Oliveira [UNESP] Degradation Dental ceramics Fatigue Y-TZP Zirconia |
title_short |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
title_full |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
title_fullStr |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
title_full_unstemmed |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
title_sort |
Effect of hydrothermal and mechanical aging on the fatigue performance of high-translucency zirconias |
author |
Prado, Pedro Henrique Condé Oliveira [UNESP] |
author_facet |
Prado, Pedro Henrique Condé Oliveira [UNESP] Dapieve, Kiara Serafini Campos, Tiago Moreira Bastos Valandro, Luiz Felipe Melo, Renata Marques de [UNESP] |
author_role |
author |
author2 |
Dapieve, Kiara Serafini Campos, Tiago Moreira Bastos Valandro, Luiz Felipe Melo, Renata Marques de [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Sergipe (UFS) Aeronautics Technological Institute (ITA) |
dc.contributor.author.fl_str_mv |
Prado, Pedro Henrique Condé Oliveira [UNESP] Dapieve, Kiara Serafini Campos, Tiago Moreira Bastos Valandro, Luiz Felipe Melo, Renata Marques de [UNESP] |
dc.subject.por.fl_str_mv |
Degradation Dental ceramics Fatigue Y-TZP Zirconia |
topic |
Degradation Dental ceramics Fatigue Y-TZP Zirconia |
description |
Objectives: This study aimed to evaluate the impact of mechanical fatigue cycling using the step-stress approach along with hydrothermaldegradation (134 ºC with a constant pressure of 2 bars for 20 h), and a novel intercalated hydrothermal/fatigue aging protocol on different aspects of the aging resistance of three generations of dental zirconias. Methods: “Y”Z T (VITA), INCORIS “T”ZI (Dentsply Sirona) and “K”ATANA UTML (Noritake Kuraray) − 1st, 2nd and 3rd generation, respectively-, zirconia disks (N = 153), were divided into 6 groups (n = 3) for monotonic testing and 9 groups (n = 15) for mechanical fatigue testing, according to 3 proposed treatments for each zirconia: CF (control – only mechanical fatigue cycling); AF (aging in hydrothermal reactor at 134 °C for 20 h + mechanical fatigue cycling); AFA (Alternating protocol: 4 steps of 5 h of hydrothermal aging intercalated with mechanical fatigue cycling). Mechanical fatigue aging was performed according to the step-stress approach through biaxial flexural setup (piston-on-3-balls, initial strength: 100 MPa, step: 50 MPa/10,000, frequency: 20 Hz) until failure. Data were analyzed using Kaplan-Meier and Mantel-Cox test (α = 0.05), in addition to Weibull analysis. Fractured disks were analyzed in stereomicroscope, Scanning Electron Microscopy and X-Ray Diffraction. Results: Continuous hydrothermal and mechanical fatigue cycling decreased the fatigue strength of YAF group (516 ± 38 MPa), while the alternating protocol increased it (730 ± 58 MPa). KATANA UTML showed no differences for both treatments and did not undergo t-m phase transformation. The TAF group showed the highest fatigue strength (810 ± 76 MPa) and cycles for failure (147,000.00 cycles). The fracture origin for all specimens was on the tensile side in pre-existing defects. Significance: INCORIS TZI zirconia had higher fatigue strength and survival rates after hydrothermal and mechanical fatigue aging. Although less resistant, KATANA UTML did not suffer chemical degradation. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-01 2023-03-01T19:57:56Z 2023-03-01T19:57:56Z |
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.dental.2022.04.021 Dental Materials, v. 38, n. 6, p. 1060-1071, 2022. 0109-5641 http://hdl.handle.net/11449/240020 10.1016/j.dental.2022.04.021 2-s2.0-85129700530 |
url |
http://dx.doi.org/10.1016/j.dental.2022.04.021 http://hdl.handle.net/11449/240020 |
identifier_str_mv |
Dental Materials, v. 38, n. 6, p. 1060-1071, 2022. 0109-5641 10.1016/j.dental.2022.04.021 2-s2.0-85129700530 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Dental Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1060-1071 |
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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1799965746588024832 |