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Effect of neutralization and hydrofluoric acid precipitate remotion on the compressive strength of monolithic lithium disilicate crowns
(2021-08-01)
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 ...
Ceramic repair without hydrofluoric acid
(2016-01-01)
Purpose: To evaluate the bond strength between composite resin and feldspathic ceramic following repair protocols with and without hydrofluoric acid and aging by thermocycling. Materials and Methods: Forty-eight glass ...
Efeito do condicionamento de inlays cerâmicas com diferentes concentrações de ácido fluorídrico na carga de fratura sob fadiga de pré-molares restaurados
(Universidade Federal de Santa MariaBROdontologiaUFSMPrograma de Pós-Graduação em Ciências Odontológicas, 2016-07-26)
The aim of this study was to evaluate the effect of different concentrations of hydrofluoric acid on the fatigue failure load of premolars restored with feldspathic ceramic inlays. Sixty upper premolars were embedded in ...
Recovery process of Li, Al and Si from lepidolite by leaching with HF
(Multidisciplinary Digital Publishing Institute, 2017-03)
This work describes the development of a new process for the recovery of Li, Al and Si along with the proposal of a flow sheet for the precipitation of those metals. The developed process is comprised of lepidolite acid ...