Introduction: Despite being one of the most studied ceramics today, zirconia still does not have a well-defined adhesion protocol. Objective: Evaluate the influence of different etching times and hydrofluoric acid (HF) concentrations on the zirconia surface and bond strength between a vitrified Y-TZP ...
Resumo Este estudo objetivou determinar o limiar de redução na espessura do compósito de cor da dentina necessário para resultar em mudanças de cor perceptíveis e aceitáveis em restaurações simuladas. Três sistemas de compósitos (Charisma Diamond, IPS Empress Direct e Filtek Z350 XT) foram ava...
Abstract This study evaluated the effect of different hydrofluoric acid (HF) concentrations on the bond strength between a lithium disilicate-based glass ceramic and a resin cement. Eighty ceramic-blocks (12×7×2 mm) of IPS e.Max CAD (Ivoclar Vivadent) were produced and randomly assigned to 8 groups, co...
Grabado Ácido Dental/métodos,
Cerámica/química,
Recubrimiento Dental Adhesivo/métodos,
Porcelana Dental/química,
Ácido Fluorhídrico/química,
Ensayo de Materiales,
Microscopía de Fuerza Atómica,
Cementos de Resina/química,
Resistencia al Corte,
Estrés Mecánico,
Propiedades de Superficie
Dental erosion is a high prevalence condition characterized by the loss of dental substance due to chemical agents. it can also be associated with physical wear, affecting function and aesthetics. ceramic veneers can provide effective solutions to patients affected by erosive disorders, by means of an in...
A estética do sorriso correlaciona a harmonia dos dentes, gengiva e lábios com as estruturas faciais. Diante da importância da obtenção desta harmonia para o restabelecimento da estética, o presente trabalho tem como objetivo relatar um caso clínico de abordagem terapêutica interdisciplinar, empr...
Abstract This study evaluated the effect of the accelerated artificial aging (AAA) on feldspar ceramic strength and the reinforcing effect promoted by adhesive cementation with resin luting agent. One hundred twenty feldspar ceramic disks were obtained. Sixty disks were acid-etched, silanized, and coated...
This study evaluated the shear stress distribution on the adhesive interface and the bond strength between resin cement and two ceramics. For finite element analysis (FEA), a tridimensional model was made using computer-aided design software. This model consisted of a ceramic slice (10x10x2mm) partially ...
Abstract The aim of this study was to evaluate stress distribution in an occlusal veneer according to the restorative material, restoration thickness, and cement layer thickness. A tridimensional model of a human maxillary first molar with an occlusal veneer preparation was constructed using a modeling s...
Análisis de Varianza,
Cerámica/química,
Cementos Dentales/química,
Porcelana Dental/química,
Diseño de Prótesis Dental,
Fracaso de la Restauración Dental,
Restauración Dental Permanente/métodos,
Análisis del Estrés Dental,
Coronas con Frente Estético,
Módulo de Elasticidad,
Análisis de Elementos Finitos,
Litio/química,
Ensayo de Materiales,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Cemento de Silicato/química,
Resistencia a la Tracción,
Circonio/química
Abstract: This study aimed to compare the vertical marginal gap of teeth restored with lithium disilicate crowns fabricated using CAD/CAM or by pressed ceramic approach. Twenty mandibular third molar teeth were collected after surgical extractions and prepared to receive full veneer crowns. Teeth were op...
Diseño Asistido por Computadora,
Coronas/normas,
Materiales de Impresión Dental,
Técnica de Impresión Dental,
Adaptación Marginal Dental/normas,
Porcelana Dental/química,
Diseño de Prótesis Dental,
Ensayo de Materiales,
Estándares de Referencia,
Valores de Referencia,
Reproducibilidad de los Resultados,
Estadísticas no Paramétricas
Abstract To investigate how the hydrofluoric acid (HF) concentrations applied to a lithium disilicate glass-ceramic (EMX) affects the surface morphology and microtensile bond strength (μTBS) of ceramics to dentin, using light-cured resin cements with or without UDMA. Sixty-three EMX square ceramic b...
