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The performance of sol-gel silica coated Y-TZP for veneered and monolithic dental restorations
(2019-02-01)
Objectives: The purpose of the study was to characterize the microstructure, constituents, and mechanical properties of mono and bilayered zirconia specimens infiltrated with silica by the sol gel method. Methods: 180 ...
The number of specimens in a furnace affects the biaxial flexural strength of veneered zirconia specimens after sintering
(2020-01-01)
This study evaluated the effect of the number of specimens in a furnace during the firing of porcelain-zirconia (Y-TZP) discs on their biaxial flexural strength. Eighty bilayer disc-shaped specimens (∅: 15mm; thickness: ...
Efeito da usinagem, do ciclo térmico de glazeamento e do condicionamento ácido na resistência flexural de uma cerâmica vítrea
(Universidade Federal de Santa MariaBROdontologiaUFSMPrograma de Pós-Graduação em Ciências Odontológicas, 2013-07-31)
The aim of this study was to evaluate the effect of hard machining, thermal cycle for
glazing and acid etching on the surface roughness and flexural strength of a leucite
glass-ceramic. Additionally, it was investigated ...
Effect of Heat Sources on the Mechanical Poperties of GICS
(2014)
The aims of the present study were to compare: 1)the output temperature of two LED light-curing devices with an average intensity of 1400mW/cm2 after 60 seconds; 2)the influence of the two heat sources at 10, 30 and 60 ...
Degradation kinetics of high-translucency dental zirconias: Mechanical properties and in-depth analysis of phase transformation
(2020-02-01)
This study aimed to evaluate the effects of low temperature degradation (LTD) on commercial dental zirconias (conventional and high-translucent - HT) with different microstructures, as well as on their mechanical properties ...
Femtosecond Ti: Sa ultra short-pulse laser irradiation effects on the properties and morphology of the zirconia surface after ageing
(2021-02-15)
Femtosecond pulses from a Ti:Sapphire laser were used to irradiate specimens of yttria-stabilised (35% mol) tetragonal zirconia (Y-TZP) with the purpose of studying the effects of the irradiations on their surface properties ...
Effect of hydrothermal aging on the properties of zirconia with different levels of translucency
(2020-09-01)
Objectives: The aim of this study was to evaluate the effect of hydrothermal aging on the mechanical properties and translucency of dental zirconia with different levels of translucency. Methods: Three different types of ...