Aim: To assess the effect of different mechanical surface treatments on flexural strength of repaired denture base. Material and Methods: Sixty bar-shaped specimens of heat-polymerized acrylic resin were fabricated, and divided into six groups (n=10). All specimens, except the positive control group (gro...
Aim: The aim of this study was to compare the microtensile bond strength (μTBS) and the characteristics of the adhesive interface of Scotchbond Universal - SU – etch-and-rise mode (3M ESPE) and Adper Scotchbond Multi-Purpose - MP (3M ESPE) to dentin over time. Methods: Class I cavity preparations were...
Abstract This study aimed to evaluate, in vitro and in vivo, the biocompatibility of experimental methacrylate-based endodontic sealers containing α-tricalcium phosphate (α-TCP) or nanostructured hydroxyapatite (HAp). Experimental methacrylate-based dual-cure sealers with the addition of α...
OBJECTIVES: To investigate the safety and efficacy of combined tirofiban-ozagrel therapy for treating progressive stroke patients out of thrombolytic therapy time window. METHODS: This prospective, double-blind, randomized controlled study included 337 patients who had experienced an acute ischemic stro...
Abstract Fixed orthodontic appliances may lead to biofilm accumulation around them that may increase caries risk. This study aimed to evaluate the influence of quaternary ammonium methacrylates (QAMs) on the physicochemical properties, cytotoxicity, and antibacterial activity of adhesive resins for ortho...
Abstract The composition of infiltrants can influence their physical properties, viscosity and depth of penetration (DP). Strategies are used to increase the DP, such as the addition of diluents or the use of heat. This study aimed to evaluate the effect of preheating and composition on physical properti...
Abstract The objective of this study was to evaluate the influence of hydrofluoric acid (HF) concentration, etching time, and application of phosphoric acid (PA) followed by neutralization with sodium bicarbonate on the bond strength between a feldspar ceramic and resin cement. Thus, 80 blocks (10 x 12 x...
Silicatos de Aluminio/química,
Análisis de Varianza,
Recubrimiento Dental Adhesivo/métodos,
Porcelana Dental/química,
Ácido Fluorhídrico/química,
Ensayo de Materiales,
Metacrilatos/química,
Microscopía Electrónica de Rastreo,
Ácidos Fosfóricos/química,
Compuestos de Potasio/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Cementos de Resina/química,
Resistencia al Corte/efectos de los fármacos,
Silanos/química,
Propiedades de Superficie,
Factores de Tiempo
Abstract Enzymatic degradation of the hybrid layer can be accelerated by the activation of dentin metalloproteinases (MMP) during the bonding procedure. MMP inhibitors may be used to contain this process. Objective To evaluate the degree of conversion (DC%), dentin bond strength (µTBS) (immediate and ...
Análisis de Varianza,
Recubrimiento Dental Adhesivo/métodos,
Cementos Dentales/química,
Grabado Dental/métodos,
Filtración Dental,
Dentina/química,
Dentina/efectos de los fármacos,
Ensayo de Materiales,
Inhibidores de la Metaloproteinasa de la Matriz/química,
Metacrilatos/química,
Polietilenglicoles/química,
Ácidos Polimetacrílicos/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Espectroscopía Infrarroja por Transformada de Fourier,
Estadísticas no Paramétricas,
Propiedades de Superficie,
Resistencia a la Tracción,
Factores de Tiempo
Abstract The aim of this study was to use the isobornyl methacrylate (IBOMA) as a combining or substituent diluent monomer in the resin matrix of dental resin composites. Thus, the resin matrix was formulated with 60 wt% of BisGMA and 40 wt% of diluent monomers. TEGDMA as the only diluent monomer was use...
Abstract The most common main materials for dentin bonding for composite resin restoration is 2-hydroxyethyl methacrylate (HEMA). HEMA has beneficial physical and chemical properties, and stable, yet toxic. The addition of ethanol or water, may reduce the toxic effect of HEMA. Ethanol solvent has lower H...
