Objetivo: avaliar in vitro o polimento sobre resina acrílica quimicamente ativada (RAQA), por meio da rugosidade de superfície (Ra). Materiais e Método: Foram confeccionadas 40 amostras de RAQA, com dimensões de 10 a 10 x 2 mm, e foram divididas em quatro grupos (n=10): ausência do acabamento (AA); ...
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...
Abstract This study aimed to evaluate the physical properties and antifungal activities of polymethyl methacrylate (PMMA) acrylic resins after the incorporation of chlorhexidine diacetate salt (CDA). Methodology: First, acrylic resin specimens were fabricated with Vipi Cor® and DuraLay® resins with an...
Resinas Acrílicas/química,
Antifúngicos/química,
Antifúngicos/farmacología,
Candida albicans/efectos de los fármacos,
Clorhexidina/análogos & derivados,
Clorhexidina/farmacología,
Cromatografía Líquida de Alta Presión,
Ensayo de Materiales,
Polimetil Metacrilato/química,
Polimetil Metacrilato/farmacología,
Valores de Referencia,
Reproducibilidad de los Resultados,
Espectroscopía Infrarroja por Transformada de Fourier,
Factores de Tiempo,
Agua/química
Abstract Objective: To evaluate the effect of immersion and acid challenge with cola drink on color change (ΔE), Vickers hardness (VHN) and surface roughness (Ra) of artificial acrylic resin teeth. Material and Methods: The artificial teeth were divided into 6 groups (n= 8): TC (Trilux/Control), B...
Background: Auto-polymerized acrylic resins are commonly used in many applications in dentistry including in maxillofacial rehabilitation such as interim prostheses, denture repair, reline, orthodontic appliances, record base, among others. These substances, however, have some negative aspects such as po...
RESUMEN: El auge experimentado en los últimos años en la aplicación de las técnicas anatómicas para la conservación de muestras anatómicas está directamente relacionado con la necesidad de preservación de los escasos especímenes con que cuentan las instituciones universitarias en relación a au...
Abstract Candida albicans is the main causative pathogen of denture stomatitis, which affects many complete denture patients. Objective: To evaluate the effect of different concentrations of nanodiamonds (NDs) added to polymethyl methacrylate (PMMA) denture base material on Candida albicans adhesion as w...
Resinas Acrílicas/química,
Análisis de Varianza,
Candida albicans/efectos de los fármacos,
Bases para Dentadura/microbiología,
Microscopía Electrónica de Rastreo,
Ensayo de Materiales,
Nanodiamantes/química,
Nanodiamantes/microbiología,
Polimetil Metacrilato/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Estomatitis Subprotética/microbiología,
Estomatitis Subprotética/prevención & control,
Propiedades de Superficie
Abstract INTRODUCTION: Acrylic resins are used in the preparation of facial prostheses and may be colonized by fungi. Here, we verified the antifungal efficacy of this material after surface treatment using poly (diallyldimethylammonium chloride). METHODS: Acrylic resin specimens with and without surfa...
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 effect of chitosan or nanodiamond incorporation on the color stability and surface roughness of a bisacrylic resin subjected to artificial aging. Four bisacrylic resins were evaluated, namely, control, chitosan-modified material, nanodiamond-modified mat...
Resinas Acrílicas/química,
Análisis de Varianza,
Bebidas Gaseosas,
Quitosano/química,
Color,
Resinas Compuestas/química,
Ensayo de Materiales,
Microscopía Electrónica de Rastreo,
Nanodiamantes/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Espectrofotometría,
Estadísticas no Paramétricas,
Propiedades de Superficie,
Factores de Tiempo,
Agua/química,
Vino
