Atenção: Todas as denúncias são sigilosas e sua identidade será preservada.
Os campos nome e e-mail são de preenchimento opcional
Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | University of Fortaleza (UNIFOR) | - |
Autor(es): dc.contributor | Universidade Estadual Paulista (UNESP) | - |
Autor(es): dc.contributor | University Center Christus (UNICHRISTUS) | - |
Autor(es): dc.contributor | Newcastle University | - |
Autor(es): dc.creator | Zogheib, Lucas V. | - |
Autor(es): dc.creator | Lopes, Guilherme R. [UNESP] | - |
Autor(es): dc.creator | Matos, Jefferson D. [UNESP] | - |
Autor(es): dc.creator | Castro, Daniel S. | - |
Autor(es): dc.creator | Bottino, Marco A. [UNESP] | - |
Autor(es): dc.creator | McCabe, John | - |
Autor(es): dc.creator | Kimpara, Estevão T. [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-08-04T22:11:23Z | - |
Data de disponibilização: dc.date.available | 2022-08-04T22:11:23Z | - |
Data de envio: dc.date.issued | 2022-04-28 | - |
Data de envio: dc.date.issued | 2022-04-28 | - |
Data de envio: dc.date.issued | 2021-08-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.23736/S2724-6329.20.04330-7 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/222090 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/222090 | - |
Descrição: dc.description | METHODS: Forty (40) human third molars received conventional full coverage preparation. After performing digital impressions of teeth preparations, ceramic blocks were machined using a CAD/CAM system in order to obtain the crowns. The crowns were distributed in 4 groups as ceramic surface treatment (N.=10): (HF) - 4.9% HF for 20s + air-water spray for 30s; (HFN) - HF + neutralizing agent for 5 min (N); (HFU) - HF + ultrasonic bath for 5 min (U); e (HFNU) - HF + N + U. SEM and EDS analysis was performed in each group in order to characterize the ceramic surface and to verify the chemical element distribution after HF cleaning protocols. A silane layer was applied (for 60s), and crowns were then cemented with dual resin cement. A compressive load was applied on the middle of the occlusal crown surface with a crosshead speed of 1 mm/min until fracture. Data were analyzed using ANOVA and Tukey test (a=0.05). RESULTS: Fluoride ions were found in samples of all postetching cleaning protocols. The mean value (Kgf) was: HF =169.92±21.37; HFN =187.34±34.79; HFU =166.63±40.22 and HFNU=175.26±40.22. The ceramic surface treatment after HF etching did not significantly influence (P>0.05) the compressive strength of the tested ceramic crowns. CONCLUSIONS: Surface treatments with neutralizing agent associated with the ultrasonic bath as the pre-cementation protocol was the most efficient protocol in eliminating the precipitate deposited on the porosities created by acid etching. | - |
Descrição: dc.description | Department of Dentistry University of Fortaleza (UNIFOR) | - |
Descrição: dc.description | Department of Prosthodontics and Dental Materials São Paulo State University (Unesp) Institute of Science and Technology | - |
Descrição: dc.description | Department of Dentistry University Center Christus (UNICHRISTUS) | - |
Descrição: dc.description | School of Dental Science Newcastle University | - |
Descrição: dc.description | Department of Prosthodontics and Dental Materials São Paulo State University (Unesp) Institute of Science and Technology | - |
Formato: dc.format | 133-141 | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Minerva Dental and Oral Science | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Ceramics | - |
Palavras-chave: dc.subject | Compressive strength | - |
Palavras-chave: dc.subject | Dental stress analysis | - |
Palavras-chave: dc.subject | Hydrofluoric acid | - |
Palavras-chave: dc.subject | Tooth crown | - |
Título: dc.title | Effect of neutralization and hydrofluoric acid precipitate remotion on the compressive strength of monolithic lithium disilicate crowns | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
O Portal eduCAPES é oferecido ao usuário, condicionado à aceitação dos termos, condições e avisos contidos aqui e sem modificações. A CAPES poderá modificar o conteúdo ou formato deste site ou acabar com a sua operação ou suas ferramentas a seu critério único e sem aviso prévio. Ao acessar este portal, você, usuário pessoa física ou jurídica, se declara compreender e aceitar as condições aqui estabelecidas, da seguinte forma: