Effects of ZnO/TiO2 nanoparticle and TiO2 nanotube additions to dense polycrystalline hydroxyapatite bioceramic from bovine bones

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniv Mississippi-
Autor(es): dc.creatorPires, Luara Aline-
Autor(es): dc.creatorAzevedo Silva, Lucas Jose de-
Autor(es): dc.creatorFerrairo, Brunna Mota-
Autor(es): dc.creatorErbereli, Rogerio-
Autor(es): dc.creatorParreira Lovo, Joao Fiore-
Autor(es): dc.creatorGomes, Orisson Ponce [UNESP]-
Autor(es): dc.creatorRubo, Jose Henrique-
Autor(es): dc.creatorLisboa-Filho, Paulo Noronha [UNESP]-
Autor(es): dc.creatorGriggs, Jason Alan-
Autor(es): dc.creatorFortulan, Carlos Alberto-
Autor(es): dc.creatorSanches Borges, Ana Flavia-
Data de aceite: dc.date.accessioned2022-02-22T00:09:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:09:39Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.dental.2019.11.006-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196513-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196513-
Descrição: dc.descriptionObjectives. A bovine dense hydroxyapatite ceramic (HA) was produced as new biomaterial, however, the production of a material with consistently high flexural strength remains challenging. The objective of this study was to evaluate the effects of ZnO nanoparticles, TiO2 nanoparticles, and TiO2 nanotubes (1%, 2%, and 5% by weight) on the microstructure and flexural strength of a bovine dense hydroxyapatite ceramic (HA). Methods. Discs ((sic) =12.5 mm; thickness =1.3 mm) were prepared and subjected to X-ray diffraction (XRD), and observation with a field emission scanning electron microscope (FE-SEM), biaxial flexural strength (BFS) testing, and Vickers hardness (VH) testing. The BFS and VH data were subjected to ANOVA and Tukey post-hoc tests (alpha = 0.05) and Weibull analysis. Results. The XRD showed that the addition of nanomaterials caused the formation of a secondary phase when 5% of the ZnO nanoparticles was used, or when all percentages of the TiO2 nanoparticles/nanotubes were used, and the HA crystallographic planes were maintained. Differences were not observed between the higher BFS values obtained with pure HA and those obtained with the 5% addition of TiO2 nanoparticles. However, the results were different compared with the other groups (alpha = 0.05). The results obtained by Weibull analysis revealed that the 1%, 2%, and 5% addition of TiO2 nanotubes, and the 1% and 2% addition of TiO2 nanoparticles decreased the HA characteristic strength (sigma(0)), while the Weibull modulus (m) increased when 5% of TiO2 nanoparticles, 1% and 2% of ZnO nanoparticles, and 2% of TiO2 nanoparticles were added, but with no statistical difference from the pure HA. The 5% addition of ZnO2 nanoparticles decreased the sigma(0) without changing m. Moreover, the 5% addition of TiO2 nanoparticles resulted in an m closest to that of pure HA. Regarding the VH results, the blend of HA with 1% and 2% addition of TiO2 nanoparticles exhibited the higher values, which were similar between the different addition ratios (p = 0.102). Moreover, the addition of 5% TiO2 nanoparticles resulted in higher value compared with pure HA. Significance. This study demonstrated that the HA blend with 5% of TiO2 nanoparticles has the greatest potential as a bovine HA dense bioceramic reinforcement. (C) 2019 The Academy of Dental Materials. Published by Elsevier Inc. All rights reserved.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUniv Sao Paulo, Dept Operat Dent Endodont & Dent Mat, Bauru Sch Dent, Alameda Dr Octavio Pinheiro Brisolla 9-75, BR-17012901 Bauru, SP, Brazil-
Descrição: dc.descriptionUniv Sao Paulo, Bauru Sch Dent, Dept Prosthodont & Periodont, Alameda Dr Octavio Pinheiro Brisolla 9-75, BR-17012901 Bauru, SP, Brazil-
Descrição: dc.descriptionUniv Sao Paulo, Sao Carlos Sch Engn, Dept Mech Engn, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Sch Sci, Dept Phys, Av Engn Luiz Edmundo Carrijo Coube S-N, BR-17033360 Bauru, SP, Brazil-
Descrição: dc.descriptionUniv Mississippi, Sch Dent, Dept Biomed Mat Sci, Med Ctr, 2500 North State St,Room D528, Jackson, MS 39216 USA-
Descrição: dc.descriptionSao Paulo State Univ, Sch Sci, Dept Phys, Av Engn Luiz Edmundo Carrijo Coube S-N, BR-17033360 Bauru, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2018/23639-0-
Descrição: dc.descriptionFAPESP: 2013/07296-2-
Descrição: dc.descriptionCNPq: 154705/2015-2-
Formato: dc.formatE38-E46-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationDental Materials-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectCeramics-
Palavras-chave: dc.subjectDurapatite-
Palavras-chave: dc.subjectNanop articles-
Palavras-chave: dc.subjectNanotubes-
Título: dc.titleEffects of ZnO/TiO2 nanoparticle and TiO2 nanotube additions to dense polycrystalline hydroxyapatite bioceramic from bovine bones-
Tipo de arquivo: dc.typelivro digital-
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