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Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. Instituto de Ciência e Tecnologia (ICT) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Nathália de Carvalho Ramos Ribeiro in research grants and scholarships supported by FAPESP.
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The general objective of the work will be to develop, structurally characterize, and analyze the translucency, mechanical and adhesive properties, and fatigue behavior of new materials based on fully yttria-stabilized zirconia (8Y- and 10Y-ZrO2). The biomechanical behavior of cemented discs of 5Y-PSZ, 8Y-ZrO2, and 10Y-ZrO2 cemented over G10 resin will also be evaluated. Specimens will be …
The objective of the study is to evaluate the effects of silica dipping infiltration by sol-gel method performed in the presence of catalysts in mechanical properties, microstructure and surface characteristics of a Y-TZP Zirconia as well as the interfacial energy (toughness Fracture) in bond to resin cement. Disks are made of Y-TZP and Zirconia divided into 5 groups, infiltrated by silic…
The aim of this study will be to characterize the microstructure of four dental ceramics obtained by CAD/CAM and evaluate their surcpetibility to stress corrosion under dynamics fatigue, with pre-cracked specimens. For the microstructural characterization, surface treatments will be made on the ceramics so that the diferent phases can be seen under SEM and chemical analysis can be perform…
The aim of the present work will be to evaluate the crack growth and strength of a dental ceramic. The effects of the wet medium and of the pH variation, associated to static and dynamic fatigue will be tested with biaxial flexural strength test. One hundred ceramic disks (15 mm diameter and 1,2 mm thick) will be made of a veneering ceramic (Vita VM7, Vita Zahnfabrik, Bad Sackingen, Alema…
The aim will be to analyze the interfacial energy for fracture (fracture toughness) of the bond between resin cement and zirconia. The comparison will be made between infiltrations made by the sol-gel method with quick immersion in silicic acid, in TEOS or the glass infiltration of a graded zirconia (slurry). Therefore, brazil nut specimens will be infiltrated by the following methods: Si…