Critical Size Defect
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Investigating the Effect of Delamination Size, Stacking Sequences and Boundary Conditions on The Vibration Properties of Carbon Fiber Reinforced Polymer Composite
Abstract Composite structures are extensively used in various fields ranging from, but not limited to marine, aerospace, automotive, agricultural and industrial equipment due to their unique and excellent properties like weight associated with density. On an increase in their applications, it also requires special attention to manufacture and process the com
Mat. Res.. Publicado em: 07/01/2019
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2. Evaluation of photobiomodulation therapy associated with guided bone regeneration in critical size defects. In vivo study
Abstract The repair of bone defects raises the interest of investigators in several health specialties. Grafting techniques with bone substitutes and laser therapies have been investigated to replace autogenous bone and accelerate the bone healing process. Objective To evaluate the effect of photobiomodulation therapy (PBMT) associated with guided bone rege
J. Appl. Oral Sci.. Publicado em: 07/05/2018
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3. The biopolymer sugarcane as filling material of critical defects in rats
PURPOSE: To evaluate the effects of particulate (granule-shaped) SCB on bone repair relating it to its biocompatibility and bone neoformation. METHODS: Thirty Wistar rats were submitted to a one 7-mm-diameter defect and divided equally into three experimental groups, with two different postoperative times of evaluation, 90 and 120 days. Each calvaria defe
Acta Cir. Bras.. Publicado em: 2016-01
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4. Bone healing of mandibular critical-size defects in spontaneously hypertensive rats
Few articles have shown changes in bone metabolism caused by hypertension. The objective of this study was to investigate the relationship between hypertension and bone healing. Circular critical-size defects 5 mm and 2 mm in diameter were created, respectively, on the left and right side of the mandible in 40 spontaneously hypertensive and 40 control Wistar
Braz. oral res.. Publicado em: 2013-09
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5. Efeito do tratamento com lercanidipina no reparo e densidade óssea em tíbias de ratos espontaneamente hipertensos. / Effect of treatment with lercanidipine in the repair and bone density in the tibia of spontaneously hypertensive rats.
The aim of this study was to evaluate the effects of the treatment of spontaneouslyhypertensive rats (SHR) with lercanidipine on bone healing and bone density of the tibia, using histometric and TRAP expression analyses. Wistar and SHR rats were assigned to one of the following groups: Normotensive rats (NTR) (n=15); Untreated (n=15) and Lercanidipine-treate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2012
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6. Trabecular bone area and bone healing in spontaneously hypertensive rats: a histometric study
Clinical and experimental studies have demonstrated some negative effect of hypertension on bone mineral density. The aim of this study was to evaluate bone healing and trabecular bone area (TBA) in spontaneously hypertensive rats (SHR), a well-established model of essential hypertension, when compared to normotensive rats (NTR). A critical-size defect was s
Brazilian Oral Research. Publicado em: 2010-06
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7. Avaliação in vivo de matrizes tridimensionais de quitosana para a bioengenharia tecidual óssea.
This study evaluated the histomorphological behavior in vivo of tridimensional matrices of chitosan with 4% and 15% degrees of acetylene process, in a 9mm critical size defect of diameter created in rat calvaria. Sixty rats Wistar Albinus, disposed in three groups were evaluated. In the GI group (control group) the defect was filled only with blood coagulant
Publicado em: 2008
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8. Lack of repair of rat skull critical size defect treated with bovine morphometric protein bound to microgranular bioabsorbable hydroxyapatite
A capacidade de um pool de proteínas morfogenéticas bovinas ligada a hidroxiapatita sintética absorvível microgranular (BMPb-HA) em estimular a reparação óssea foi avaliada em defeito de tamanho crítico em calvária de rato. Defeitos de 8 mm diâmetro foi produzido na calvária de 25 ratos, sendo 15 preenchidos com BMPb-HA homogeinizado com sangue (g
Brazilian Dental Journal. Publicado em: 2004-12
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9. Estudo imunoistoquimico da incorporação de enxerto alogeno com proteina morfogenetica do osso-2 na mandibula de rato
Large bone defects can be managed by autogenous graft; however limitations in this source have induced research for new materials to replace autogenous graft. The incorporation of autoclaved alogenous bone graft associated to recombinant human bone morphogenetic protein 2 (rhBMP-2) was the objective of this study. The study animals were 75 Wistar rats distri
Publicado em: 2004
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10. Estudos da formação, estabilidade e ordenamento da fase gamma FeSi 2 produzida pela técnica de implantação iônica
In the present work we implanted Fe ions into Si samples that are subsequently recrystallized by Ion Beam Induced Epitaxial Crystallization (IBIEC) technique. Four analysis techniques (RBS, Channeling, Mõssbauer and TEM) were used in order to study the following aspects: a) phases obtained by IBIEC as a function of Fe implanted concentration; b) thermal sta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 1996
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11. Cell size modulation by CDC25 and RAS2 genes in Saccharomyces cerevisiae.
A detailed kinetic analysis of the cell cycle of cdc25-1, RAS2Val-19, or cdc25-1/RAS2Val-19 mutants during exponential growth is presented. At the permissive temperature (24 degrees C), cdc25-1 cells show a longer G1/unbudded phase of the cell cycle and have a smaller critical cell size required for budding without changing the growth rate in comparison to a
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12. Atrial septal defect of the persistent ostium primum type with hypoplastic right ventricle in a Welsh pony foal.
Valvular competency of the foramen ovale (patent foramen ovale) is regarded as a common finding in the neonatal foal and usually occurs in isolation. True atrial septal defects appear to be uncommon and are usually associated with other congenital cardiac lesions. The present report describes a case of atrial septal defect type 1 (persistent ostium primum) c