ABSTRACT PURPOSE: To compare fibroplasia and the resistance of the abdominal wall when polypropylene meshes and polypropylene/poliglecaprone are used. METHODS: Seventy-seven male Wistar rats were divided into three groups: Control Group (for resistance); Group E (polypropylene mesh); and Group U (polyp...
Pared Abdominal/cirugía,
Colágeno/metabolismo,
Dioxanos/uso terapéutico,
Hernia Incisional/cirugía,
Poliésteres/uso terapéutico,
Polipropilenos/uso terapéutico,
Colágeno Tipo I/metabolismo,
Colágeno Tipo III/metabolismo,
Hernia Incisional/metabolismo,
Hernia Incisional/fisiopatología,
Ensayo de Materiales/instrumentación,
Modelos Animales,
Periodo Posoperatorio,
Ratas Wistar,
Resistencia a la Tracción/fisiología
ABSTRACT Objective: The objective of this study was to clinically and radiographically assess the peri-implant conditions of implants used as orthodontic anchorage. Methods: Two groups were studied: 1) a test group in which osseointegrated implants were used as orthodontic anchorage, with the applica...
Fenómenos Biomecánicos/fisiología,
Fuerza de la Mordida,
Resorción Ósea/fisiopatología,
Diseño de Implante Dental-Pilar,
Implantación Dental Endoósea,
Estudios de Seguimiento,
Carga Inmediata del Implante Dental,
Ensayo de Materiales,
Métodos de Anclaje en Ortodoncia,
Ortodoncia Correctiva,
Oseointegración/fisiología,
Estudios Prospectivos,
Anclas para Sutura,
Titanio
ABSTRACT Objective Biocompatible materials such as interconnected porous hydroxyapatite ceramics (IP-CHA) loaded with osteogenic cells and bioactive agents are part of an evolving concept for overcoming craniofacial defects by use of artificial bone tissue regeneration. Amongst the bioactive agents, me...
Fosfatasa Alcalina/análisis,
Sustitutos de Huesos/farmacología,
Calcificación Fisiológica/efectos de los fármacos,
Diferenciación Celular/efectos de los fármacos,
Proliferación Celular/efectos de los fármacos,
Supervivencia Celular/efectos de los fármacos,
Células Cultivadas,
Durapatita/farmacología,
Factor 2 de Crecimiento de Fibroblastos/farmacología,
Ensayo de Materiales,
Melatonina/farmacología,
Microscopía Electrónica de Rastreo,
Osteoblastos/efectos de los fármacos,
Reproducibilidad de los Resultados,
Reacción en Cadena de la Polimerasa de Transcriptasa Inversa,
Factores de Tiempo
ABSTRACT Because many mechanical variables are present in the oral cavity, the proper load transfer between the prosthesis and the bone is important for treatment planning and for the longevity of the implant-supported fixed partial denture. Objectives To verify the stress generated on the peri-implant...
Análisis de Varianza,
Aleaciones de Cromo/química,
Fuerza Compresiva,
Aleaciones Dentales/química,
Diseño de Prótesis Dental,
Prótesis Dental de Soporte Implantado/métodos,
Análisis del Estrés Dental,
Dentadura Parcial Fija,
Módulo de Elasticidad,
Ensayo de Materiales,
Paladio/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Plata/química,
Estrés Mecánico,
Torque
The medical literature has no study evaluating the effectiveness of different materials used as setons in the treatment of perianal fistulas; therefore, there is no evidence of availability of a more effective material than others for this purpose.
Objective: To evaluate the inflammatory response induce...
Introduction: The aim of this in vitro study was to compare the elastic properties of the load-deflection ratio of orthodontic wires of different lot numbers and the same commercial brand. Methods: A total of 40 nickel-titanium (NiTi) wire segments (Morelli OrtodontiaTM - Sorocaba, SP, Brazil), 0.016-i...
Objective: The aim of this in vitro study was to evaluate the deflection-force behavior of nickel-titanium (NiTi) orthodontic wires adjacent to the portion submitted to heat treatment. Material and Methods: A total of 106 segments of NiTi wires (0.019 x 0.025-in) and heat-activated NiTi wires (0.016 x ...
ABSTRACT The use of gels and mouthrinses with MMP inhibitors (chlorhexidine, and green tea extract) was shown to prevent erosive wear. The aim of this study was to analyze the protective effect of toothpastes containing MMP inhibitors on dentine loss induced by erosion in vitro. Material and Methods Fi...
Análisis de Varianza,
Bebidas Gaseosas,
Clorhexidina/química,
Dentina/efectos de los fármacos,
Ensayo de Materiales,
Inhibidores de la Metaloproteinasa de la Matriz/química,
Distribución Aleatoria,
Saliva Artificial/química,
Propiedades de Superficie/efectos de los fármacos,
Factores de Tiempo,
Abrasión de los Dientes/prevención & control,
Erosión de los Dientes/prevención & control,
Cepillado Dental,
Pastas de Dientes/química
ABSTRACT Objectives To assess the re-hardening potential of enamel matrix derivatives (EMD) and self-assembling peptides in vitro, hypothesizing that these materials may increase the mineralization of artificial carious lesions and improve hardness profiles. Material and Methods Forty-eight enamel sa...
Análisis de Varianza,
Caries Dental,
Esmalte Dental/química,
Proteínas del Esmalte Dental/química,
Dureza,
Ensayo de Materiales,
Valores de Referencia,
Reproducibilidad de los Resultados,
Saliva Artificial/química,
Estadísticas no Paramétricas,
Propiedades de Superficie,
Factores de Tiempo,
Desmineralización Dental,
Remineralización Dental/métodos
ABSTRACT Objective The corrosion behavior of zirconia in acidulated phosphate fluoride (APF) representing acidic environments and fluoride treatments was studied. Material and Methods Zirconia rods were immersed in 1.23% and 0.123% APF solutions and maintained at 37°C for determined periods of time....
Fluoruro de Fosfato Acidulado/química,
Cerámica/química,
Corrosión,
Implantes Dentales,
Espectroscopía Dieléctrica/métodos,
Inmersión,
Ensayo de Materiales,
Microscopía Electrónica de Rastreo,
Propiedades de Superficie/efectos de los fármacos,
Factores de Tiempo,
Difracción de Rayos X/métodos,
Circonio/química
