Results: 595

Osteogênese e formação de biofilmes em superfícies de titânio submetidas ao tratamento de implantação iônica por imersão em plasma de oxigênio

Neste estudo foram caracterizadas superfícies de titânio (Ti) obtidas após utilização de diferentes temperaturas pela técnica de implantação iônica por imersão em plasma de oxigênio (O-IIIP), bem como correlacionado o efeito deste tratamento com a osteogênese e formação de biofilmes microbi...

Comparative study of peritoneal adhesions after intraperitoneal implantation in rats of meshes of polypropylene versus polypropylene/polyglecaprone versus polyester/porcine collagen

Acta cir. bras; 34 (6), 2019
Abstract Purpose To Compare the extent and intensity of adhesions formed between the intra-abdominal organs and the intraperitoneal implants of polypropylene mesh versus polypropylene/polyglecaprone versus polyester/porcine collagen used for correction of abdominal wall defect in rats. Methods After ...

Bioceramic cement in the filling of bone defects in rats

Acta cir. bras; 34 (6), 2019
Abstract Purpose To evaluate PBS®MCIMMO cement in the filling of bone defects. Methods Thirty-six adult male Wistar rats were divided into three groups of twelve individuals each (group 1, group 2 and group 3). In all groups, a bone failure in the femur was induced, 2.0 mm wide and 7.0 mm deep. In g...

Influence of the incorporation of triclosan methacrylate on the physical properties and antibacterial activity of resin composite

J. appl. oral sci; 27 (), 2019
Abstract The incorporation of antimicrobials in the composites as an attempt to reduce bacterial adhesion without jeopardizing mechanical properties is a challenge for Dentistry. Objective: To evaluate the bacterial adhesion and physical properties of a composite containing the methacrylate triclosan- d...

Effect of sonic and ultrasonic activation on physicochemical properties of root canal sealers

J. appl. oral sci; 27 (), 2019
Abstract Objective: To evaluate the effect of ultrasonic and sonic activation on physicochemical properties of AH Plus, MTA Fillapex, ADSeal, GuttaFlow Bioseal, and GuttaFlow 2 sealers. Methodology: Three experimental groups were formed: no activation (NA), ultrasonic activation (UA), and sonic activat...

Liberação de componentes orgânicos e resposta periodontal em relação a um sistema restaurador resinoso Bulk-fill: estudo in vitro

A maioria das resinas compostas apresenta metacrilatos como principais monômeros em sua composição. A liberação de monômeros de metacrilato, associada aos produtos de polimerização, tem sido considerada como fonte de uma série de reações biológicas como toxicidade ou reações pulpares. Os ob...

Estudo de novos dispositivos, instrumentos e materiais empregados no tratamento endodôntico

Introdução: O tratamento endodôntico visa manter ou restabelecer a saúde do periodonto através do preparo biomecânico, utilizando instrumentos de níqueltitânio automatizados e associados com insertos ultrassônicos para potencializar a ação dos irrigantes. Os materiais empregados na endodontia ...

Poly(trimethylene carbonate-co-L-lactide) electrospun scaffolds for use as vascular grafts

Braz. j. med. biol. res; 52 (8), 2019
Currently, there is great clinical need for suitable synthetic grafts that can be used in vascular diseases. Synthetic grafts have been successfully used in medium and large arteries, however, their use in small diameter vessels is limited and presents a high failure rate. In this context, the aim of thi...

Effect of gallic acid addition on some mechanical properties of self-adhesive resin cements

Abstract Self-adhesive resin cements (RCs) activate matrix metalloproteinase (MMP) and cathepsin-related collagen degradation, and gallic acid (GA) inhibits the activity of both MMPs and cysteine cathepsins. The purpose of this study was to evaluate the setting time, biaxial flexural strength, and Vicker...

Bubaline Diaphragm Matrix: Development and Clinical Assessment into Cattle Abdominal Hernia Repair

Abstract The purpose of the study was to develop a xenogenic bubaline diaphragm matrix (BDM) for abdominal hernia repair. A fresh diaphragm was decellularized using aqueous sodium dodecyl sulfate (SDS) solutions (0.5-4% w/v) over a period. Acellularity was confirmed histologically and characterized by Ma...