Results: 231

Comparação do enxerto de tecido conjuntivo e de uma matriz de colágeno xenógena no recobrimento radicular de recessões gengivais unitárias em fenótipo gengival fino

As recessões gengivais podem causar hipersensibilidade dentinária, desconforto estético e aumentar a prevalência de cáries ou lesões cervicais não-cariosas. Cirurgias para recobrimento radicular associadas a enxertos têm sido consideradas padrão ouro no tratamento das recessões gengivais. OBJET...

Clareamento dentário com LED violeta: efeitos na alteração cromática, resistência de união, nanodureza da camada híbrida e resistência do colágeno

O propósito deste projeto foi investigar a alteração cromática, resistência de união de restaurações resinosas à dentina, bem como analisar nanodureza da camada híbrida e a resistência coesiva do colágeno dentinário, após realização de diferentes técnicas clareadoras. Para tanto, 75 dent...

Papel da MMP-9 e do TGF-β na expressão de componentes da Matriz Extracelular por fibroblastos gengivais de camundongos normais e diabéticos com doença periodontal in vitro

Na presença de Diabetes Mellitus, a doença periodontal (DP) pode acentuar o aparecimento de complicações e aumentar sua prevalência. O objetivo desta pesquisa foi avaliar se o Fator de Crescimento Transformador -β do tipo 1 (TGFβ1, sigla em inglês) e Metaloproteinase de matriz -9 (MMP-9, sigla em...

Local treatment with ascorbic acid accelerates recovery of post-sutured Achilles tendon in male Wistar rats

Braz. j. med. biol. res; 52 (9), 2019
Tendon rupture is a very frequent accident involving average people and high-performance athletes. Clinical studies describe tendon recovery as a painful and slow process involving different biochemical and histological events. Ascorbic acid (AA) is a potent antioxidant as well as an important cofactor f...

Atelocolageno combinado con microperforaciones para el tratamiento de lesiones condrales severas en la rodilla
Atelocollagen matrix combined with microfractures in severe knee articular cartilage injuries

Artrosc. (B. Aires); 26 (3), 2019
Introducción: En la actualidad existen diferentes métodos y técnicas de preservación articular. La utilización de una matriz de atelocolágeno combinada con microperforaciones otorga un soporte adecuado para la inducción de la condrogénesis a partir de las células mesenquimales provenientes de la...

Comparison of two soft tissue substitutes for the treatment of gingival recession defects: an animal histological study

J. appl. oral sci; 27 (), 2019
Abstract Objectives: This study aimed to compare two different soft tissue replacement grafts in their ability to treat gingival recession defects and successfully integrate with the surrounding tissues. Methodology: Nine beagle dogs were included and followed up to 10 weeks. Sites for intervention wer...

Biochemical and Utralmicroscopic Evaluation of Myofibril Proteins and Collagen during Ageing in Broiler Chicken PSE (Pale, Sof, Exudative) Meat

Abstract The aim of this work was to study the myofibril proteins and collagen fraction changes in broiler chickens PSE (pale, soft, exudative) meat during ageing and their relationship to meat quality. The results presented an increase of myofibril proteins and collagen solubility promoted by the enhanc...

Swimming training potentiates the recovery of femoral neck strength in young diabetic rats under insulin therapy

Clinics; 74 (), 2019
OBJECTIVE: To test whether swimming training benefits femoral neck strength in young diabetic rats under insulin therapy. METHODS: A total of 60 male Wistar rats (age: 40 days) were divided equally into the following six groups: control sedentary, control exercise, diabetic sedentary, diabetic exercise,...

TNF-alpha increases angiogenic potential in a co-culture system of dental pulp cells and endothelial cells

Abstract We recently demonstrated that a co-culture system of human umbilical vein endothelial cells (HUVECs) and human dental pulp stem cells (hDPSCs) could enhance angiogenesis ability in vitro. However, whether tumor necrosis factor α (TNF-α) could promote blood vessel formation during pulp ...

Treatment of multiple recessions with collagen matrix versus connective tissue: a randomized clinical trial

Abstract The objective of this study was to determine whether collagen matrix (CM) is an alternative to connective tissue graft technique (CTG) in the treatment of multiple gingival recessions (GR). The indication of CM for the treatment of multiple GR is not yet clear. More studies are needed to better ...