Lyophilized Bone
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Hydrogel of polysaccharide of sugarcane molasses as carrier of bone morphogenetic protein in the reconstruction of critical bone defects in rats
PURPOSE: To evaluate the benefit of using carriers such as the biopolymer gel (hidrogel of polysaccharide of sugarcane molasses) associated with the bone morphogenetic proteins (BMP's) in the repair of critical bone defects in calvaria of Wistar rats. METHODS: Forty-two rats were submitted to a surgical calvaria bone defects. These animals were divided into
Acta Cir. Bras.. Publicado em: 2013-04
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2. Comparative study and histomorphometric analysis of bone allografts lyophilized and sterilized by autoclaving, gamma irradiation and ethylene oxide in rats
PURPOSE: To compare three sterilization methods (autoclave, gamma irradiation and ethylene oxide) over non demineralized lyophilized bone allografts. METHODS: Bone allografts were implanted on paravertebral muscles of 21 rats. After 30 days animals were sacrificed and grafts underwent comparative analysis regarding histomorphometric and macroscopic parameter
Acta Cir. Bras.. Publicado em: 2013-01
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3. Avaliação clínica e histológica de implantes imediatos e tardios associados a matriz óssea xenógena e membranas: acompanhamento de 10 anos / Clinical and histological evaluation of immediate and late implants associated with xenogeneous bone matrix and membranes: 10 years follow-up
The aim of this research is to evaluate the clinical and histological findings of installed implants immediately after exodontics (Group 1) and later after the alveolus regeneration (Group 2). In both groups, xenogeneous lyophilized bone matrix was used in association with resorbable bovine collagen membrane and/or nonresorbable expanded politetrafluoretane
Publicado em: 2010
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4. Effect of freezing methods on the properties of lyophilized porous silk fibroin membranes
Silk fibroin is a fibrous protein that has been extensively studied for application in the biomedical field, and has been used as a scaffold for bone tissue engineering. Biomaterials made of proteins are prone to physical and chemical degradation during storage; lyophilization, a drying method that consists of freezing and drying steps, is known to promote m
Materials Research. Publicado em: 2009-06
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5. Mineralização in vitro de matrizes colagênicas derivadas de tendões calcâneos bovinos e de avestruz / In vitro mineralization of anionic collagen scaffolds prepared from bovine and ostrich calcaneous tendons
One of greatest challenges of modern orthopedics is to restore bone tissue that has been lost due to sickness or accident. Searching for substitutes for grafts, biomaterials have been commonly used for recovery of bone tissue. Between different types of biomaterials, several are based on collagen. In addition to have important role in tissue structure, colla
Publicado em: 2009
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6. In vitro and in vivo evaluation of lyophilized bovine bone biocompatibility
INTRODUCTION: The use of bone grafts in orthopedic, maxillofacial and dental surgery has been growing. Nevertheless, both fresh autografts and frozen allografts have limitations, and therefore, alternative synthetic or natural biomaterials, such as processed and lyophilized bovine bone graft have been developed. OBJECTIVE: To evaluate in vitro and in vivo bi
Clinics. Publicado em: 2008
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7. AVALIAÇÃO DAS ATIVIDADES GENOTÓXICA E ANTIGENOTÓXICA DE DUGUETIA FURFURACEA EM BACTÉRIAS E CAMUNDONGOS / ASSESSMENT OF ACTIVITIES OF antigenotoxic genotoxic and Duguet furfuracea IN MICE AND BACTERIA
The plant Duguetia furfuracea (St. Hil.) Benth and Hook. f. (1862), belongs to the family Annonaceae, is popularly known as sofre‐do‐rim‐quem‐quer, araticum‐do‐cerrado and ata‐do‐mato. This plant occurres in several Brazilian states, as Amazonas, Bahia, Distrito Federal, Goiás, Minas Gerais, Mato Grosso, Mato
Publicado em: 2008
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8. Avaliação da aplicação de um campo magnético permanente sepultado em área de enxerto ósseo alógeno e dento-alveolar : estudo experimental em ratos
Proposição: O presente trabalho propõe o estudo histológico descritivo da aplicação de um campo magnético sepultado, estático e permanente em área de enxerto ósseo alógeno liofilizado e dento-alveolar associada a defeito cirúrgico em mandíbulas de ratos. Metodologia: estudo experimental in vivo, randomizado. Amostra foi composta por 21 ratos, da
Publicado em: 2008
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9. Modelo experimental de retalho osteocutâneo pré-fabricado com utilização de células-tronco mesenquimais em carreador de osso liofilizado
Introdução: A engenharia tecidual óssea com utilização de células-tronco mesenquimais é um campo de pesquisas com potencial para aplicação clínica em cirurgia plástica reparadora. Suas vantagens seriam ampliar as opções de reconstrução e diminuir a morbidade cirúrgica nas zonas doadoras. Não está definida na literatura médica a possibilida
Publicado em: 2007
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10. Estudos de marcação do etidronato com 188Re proveniente de diferentes geradores de 188W/ 188Re / Studies of HEDP labelled with 188Re from different generators of 188W / 188Re.
The widespread interest in 188Re for therapeutic applications, is due to its attractive 16,9 hours half-life, emission of a βֿ particle with maximum energy of 2.12 MeV and gama-ray of 155 keV suitable for imaging. This work presents the radiollabeling of HEDP (etidronate) with 188Re eluted from alumina-based 188W/188Re generators and tungstate-bas
Publicado em: 2006
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11. Histological and radiographical analysis of the repair of rabbit femur deffects filled with bovine bone organic cancellous matrix in blocks or cortical matrix in micro granules / Análises microscópica e radiográfica do reparo de defeitos confeccionados em fêmures de coelhos preenchidos com matriz óssea bovina medular em bloco ou cortical em microgrânulos
The aim of this work was to verify the osseous repair in non through-andthrough defects treated with blocks of lyophilized bovine bone organic matrix of cancellous origin or micro granules (0.25-1.0 mm) of lyophilized bovine bone organic matrix of cortical origin (both materials Gen-Ox®- Baumer SA- Brazil). An osseous defect, 6mm in diameter by 8mm in depth
Publicado em: 2004
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12. Effect of a freeze-dried CMC/PLGA microsphere matrix of rhBMP-2 on bone healing
The hypothesis of this research was that implants of poly(lactide-co-glycolide) (PLGA) microspheres loaded with bone morphogenetic protein-2 (rhBMP-2) and distributed in a freeze-dried carboxymethylcellulose (CMC) matrix would produce more new bone than would matrix implants of non-protein-loaded microspheres or matrix implants of only CMC. To test this hypo
Springer-Verlag.