Abstract The aim of this study was to investigate the mechanical performance and the fracture behavior of endocrown restorations prepared using distinct restorative materials. A total of 42 sound molars with similar crown size and shape were cut at 2 mm above the cementoenamel junction and endodontically...
Resinas Compuestas/química,
Coronas,
Porcelana Dental/química,
Diseño de Prótesis Dental,
Fracaso de la Restauración Dental,
Restauración Dental Permanente/métodos,
Análisis del Estrés Dental,
Recubrimientos Dentinarios/química,
Ensayo de Materiales,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Materiales de Obturación del Conducto Radicular/química,
Fracturas de los Dientes,
Diente no Vital
Abstract We assessed the effect of a new coating material based on resin-modified glass-ionomer with calcium (Ca) in inhibiting the demineralization of underlying and adjacent areas surrounding caries-like lesions in enamel. The measures used were surface hardness (SH) and cross-sectional hardness (CSH)....
Calcio/química,
Cariostáticos/química,
Esmalte Dental/efectos de los fármacos,
Fluoruros Tópicos/química,
Cementos de Ionómero Vítreo/química,
Pruebas de Dureza,
Concentración de Iones de Hidrógeno,
Ensayo de Materiales,
Distribución Aleatoria,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Fluoruro de Sodio/química,
Espectrometría por Rayos X,
Propiedades de Superficie/efectos de los fármacos,
Factores de Tiempo,
Desmineralización Dental/prevención & control
Introdução: A adesão da resina composta à dentina ocorre pela formação da camada híbrida. Assim, sua degradação ocasiona a perda da resistência de união na interface resina/dentina, influenciando na longevidade da restauração. Após o condicionamento ácido e aplicação do sistema adesivo n...
Abstract: The objective of this study was to evaluate the effect of the hydrofluoridric acid (HF) concentration and time of acid conditioning on bond strength of three glass ceramics to a resin cement. Thus, fifty blocks (10 mm x 5 mm x 2 mm) of each ceramic (LDCAD: IPS e.max CAD; LCAD: IPS Empress CAD a...
Grabado Ácido Dental,
Cerámica/química,
Recubrimiento Dental Adhesivo/métodos,
Porcelana Dental/química,
Análisis del Estrés Dental,
Ácido Fluorhídrico/administración & dosificación,
Ácido Fluorhídrico/química,
Ensayo de Materiales,
Cementos de Resina/química,
Resistencia al Corte,
Propiedades de Superficie,
Factores de Tiempo,
Microscopía Electrónica de Rastreo
Abstract: Orthodontic bonding systems are submitted to demineralization and remineralization dynamics that might compromise their surface smoothness, and favor biofilm aggregation and caries development. The aim of the present study was to evaluate the effects of a cariogenic challenge model (in vitro pH...
Resinas Acrílicas/química,
Silicatos de Aluminio/química,
Análisis de Varianza,
Cariogénicos/química,
Recubrimiento Dental Adhesivo/métodos,
Concentración de Iones de Hidrógeno,
Imagenología Tridimensional,
Ensayo de Materiales,
Microscopía de Fuerza Atómica,
Valores de Referencia,
Cementos de Resina/química,
Estadísticas no Paramétricas,
Propiedades de Superficie
Abstract: The aim of this study is to evaluate the machinability of four CAD/CAM materials (n = 13) assessed by brittleness index, Vickers hardness, and fracture toughness and interaction among such mechanical properties. The materials selected in this in vitro study are Feldspathic ceramic [FC], Lithium...
Silicatos de Aluminio/química,
Análisis de Varianza,
Cerámica/química,
Diseño Asistido por Computadora,
Porcelana Dental/química,
Pruebas de Dureza,
Ensayo de Materiales,
Polímeros/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Estadísticas no Paramétricas,
Propiedades de Superficie
Abstract: This study investigates the color correspondence of resin cements and try-in pastes, and the color stability of bonded lithium disilicate ceramic disks. Resin composite disks were fabricated (n = 36) to serve as the background for lithium disilicate disks prepared in two thicknesses (0.5 and 1....
Abstract: This study aimed to evaluate the bond strength of a universal adhesive system to enamel surrounding real-life carious cavities. Twenty-eight permanent molars (n = 7) with carious lesions in dentin were subjected to selective carious tissue removal to firm dentin and had their crowns sectioned l...
Análisis de Varianza,
Bisfenol A Glicidil Metacrilato/química,
Bisfenol A Glicidil Metacrilato/uso terapéutico,
Recubrimiento Dental Adhesivo/métodos,
Caries Dental/terapia,
Cementos Dentales/química,
Cementos Dentales/uso terapéutico,
Esmalte Dental/efectos de los fármacos,
Dentina/efectos de los fármacos,
Ensayo de Materiales,
Microscopía Electrónica de Rastreo,
Distribución Aleatoria,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Cementos de Resina/uso terapéutico,
Resistencia al Corte,
Estadísticas no Paramétricas,
Propiedades de Superficie
Abstract This study evaluates the shear bond strength (SBS) of various resin cements to different ceramics. Composite resin cylinders of Z100 were fabricated and cemented to disks of feldspathic ceramic (Creation), leucite-reinforced feldspathic ceramic (Empress I), and densely sintered aluminum oxide ce...
Aluminio/química,
Silicatos de Aluminio/química,
Cerámica/química,
Recubrimiento Dental Adhesivo/métodos,
Ensayo de Materiales,
Compuestos de Potasio/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Resistencia al Corte,
Estadísticas no Paramétricas,
Propiedades de Superficie
Aim: Cast post and core (CPC) is the main used post type; however, the biomechanical behavior of CPCs adhesively luted to the dentin is still unclear. Therefore, we aimed to evaluate the fracture resistance (FR) and fracture modes of teeth restored with CPCs luted with zinc-phosphate (ZP) or resin-based ...
