Abstract Purpose: To compare bone regeneration in critical-sized defects in rat calvarium using demineralized bone matrix and calcium phosphate cement. Methods: Thirty Wistar rats were divided into 3 groups of 10 animals each. Two defects of 5-mm were made in the parietal bones of each animal. Group ...
Cementos para Huesos/farmacología,
Matriz Ósea,
Regeneración Ósea/efectos de los fármacos,
Regeneración Ósea/fisiología,
Sustitutos de Huesos/farmacología,
Fosfatos de Calcio/farmacología,
Ensayo de Materiales,
Osteogénesis/efectos de los fármacos,
Osteogénesis/fisiología,
Ratas Wistar,
Reproducibilidad de los Resultados,
Cráneo/efectos de los fármacos,
Cráneo/fisiología,
Factores de Tiempo,
Resultado del Tratamiento
RESUMO Objetivo: Estudar o uso da biomembrana de látex e o transplante conjuntival autólogo na cicatrização conjuntival em coelhos. Métodos: Em nove coelhos albinos, neo-zelandeses, machos foram removidas áreas retangulares idênticas, do quadrante supero nasal, adjacente ao limbo, de ambos os ol...
Autoinjertos/fisiología,
Conjuntiva/patología,
Conjuntiva/trasplante,
Látex/uso terapéutico,
Membranas Artificiales,
Ensayo de Materiales,
Reproducibilidad de los Resultados,
Índice de Severidad de la Enfermedad,
Factores de Tiempo,
Resultado del Tratamiento,
Cicatrización de Heridas/fisiología
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...
Article This study evaluated comparatively two configurations (powder and putty) of a composite biomaterial based on PLGA (Poly(lactide-co-glycolide)/nanoescale hydroxyapatite (ReOss®, Intra-Lock International) through microscopic morphology, in vitro cytotoxicity, biocompatibility and in vivo response ...
Abstract This study investigated the bond strength of two experimental root canal sealers based on MTA and butyl ethylene glycol disalicylate: MTAe and MTAe-HA. The reference materials used for comparison were AH Plus and MTA Fillapex. Twenty human upper incisors were selected and one 1 mm slice was obta...
Compuestos de Aluminio/química,
Compuestos de Calcio/química,
Recubrimiento Dental Adhesivo/métodos,
Combinación de Medicamentos,
Glicol de Etileno/química,
Glicoles de Etileno/química,
Ensayo de Materiales,
Óxidos/química,
Materiales de Obturación del Conducto Radicular/química,
Salicilatos/química,
Silicatos/química
Abstract The aim of the present study was to evaluate the cyclic fatigue of two anatomic finishing files: XP-Endo Finisher and XP-Clean. Roughness pattern and the micro-hardness of the files were also assessed. Instruments were subjected to cyclic fatigue resistance measuring the time to fracture in an a...
Abstract This study investigated the effect of blood-contamination on the push-out bond strength of BiodentineTM (BD) and MTA Angelus® (MTA-A) to root dentin over time. Twenty-five teeth were sectioned horizontally to obtain 120 root slices. The lumens were filled with MTA-A or BD: 60 for each cement (3...
ABSTRACT Demand for medical implants is rising day by day as the world becomes the place for more diseased and older people. Accordingly, in this research, metallocene polyethylene (mPE), a commonly used polymer was treated with UV rays for improving its biocompatibility. Scanning electron microscopy (SE...
Células 3T3,
Bovinos,
Hemólisis,
Histocompatibilidad,
Interacciones Hidrofóbicas e Hidrofílicas,
Ensayo de Materiales,
Metalocenos/química,
Metalocenos/efectos de la radiación,
Microscopía Electrónica de Rastreo,
Propiedades de Superficie/efectos de la radiación,
Rayos Ultravioleta
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 Introduction: The force applied to the teeth by fixed orthopaedic expanders has previously been studied, but not the force applied to the orthodontic mini-implant (OMI) used to expand the maxilla with Hyrax hybrid expanders (HHE). Objective: The aim of this article was to evaluate the clinica...
