Odontoblasts
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. Initial inflammatory response after the pulpotomy of rat molars with MTA or ferric sulfate
Abstract Purpose To compare, both qualitatively and quantitatively, the inflammatory cells, vascular density and IL-6 immunolabeled cells present in the pulp after pulpotomy with white MTA versus 15.5% ferric sulfate (FS). Methodology Forty-eight mandibular first molars from 24 Wistar rats were divided into MTA or FS groups and subdivided according to th
J. Appl. Oral Sci.. Publicado em: 29/07/2019
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2. Immunohistological study of the effect of vascular Endothelial Growth Factor on the angiogenesis of mature root canals in rat molars
Abstract Tissue bioengineering has been applied to Endodontics to seek a more biological treatment. The presence of blood vessels is crucial for cell nutrition during tissue formation. Objective This study analysed the application of vascular endothelial growth factor (VEGF) in the angiogenesis of mature root canals. Material and methods Upper first molars
J. Appl. Oral Sci.. Publicado em: 21/05/2018
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3. Dental manifestations of patient with Vitamin D-resistant rickets
Patients with Vitamin D-resistant rickets have abnormal tooth morphology such as thin globular dentin and enlarged pulp horns that extend into the dentino-enamel junction. Invasion of the pulp by microorganisms and toxins is inevitable. The increased fibrotic content of the pulp, together with a reduced number of odontoblasts, decreases the response to pulp
J. Appl. Oral Sci.. Publicado em: 2013-12
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4. Avaliação da biocompatibilidade do clareamento dental caseiro e de terapias para a redução dos efeitos deletérios dos agentes clareadores sobre o tecido pulpar : estudos "in vitro" e "in vivo" / Evaluation of the Biocompatibility of the at-home dental bleaching and therapies for reduction of the deleterious effects caused by the bleaching agents on the pulp tissue : in vitro and in vivo studies
Os objetivos do presente trabalho foram: a) avaliar os efeitos citotóxicos de aplicações sucessivas do agente clareador a base de peroxido de carbamida (PC) 10% sobre células odontoblásticas; b) avaliar a toxicidade "in vivo" do tratamento clareador em dentes de ratos Wistar; c) verificar se o ácido ascórbico (AA) e capaz de reduzir os efeitos tóxico
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/03/2012
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5. Avaliação histológica e imunolocalização de STRO-1 e BMP-4 em molares de ratos com polpa vital ou necrose pulpar induzida durante o desenvolvimento radicular
Objective: the aim of this study was to characterize the features of live and necrotic dental pulps of molar teeth in rats with developing roots, and to assess the expression of STRO-1 and BMP-4. Methods: twenty-four 4-month-old male Wistar rats were used. To induce necrosis, the pulps of the first lower left molars were exposed to the oral environment. The
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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6. Toxicity of chlorhexidine on odontoblast-like cells
Chlorhexidine gluconate (CHX) is recommended for a number of clinical procedures and it has been pointed out as a potential cavity cleanser to be applied before adhesive restoration of dental cavities. OBJECTIVE: As CHX may diffuse through the dentinal tubules to reach a monolayer of odontoblasts that underlies the dentin substrate, this study evaluated the
Journal of Applied Oral Science. Publicado em: 2010-02
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7. Mechanisms underlying the differentiation of stem cells from human exfoliated deciduous teeth (SHED) into odontoblasts and endothelial cells / Mecanismos envolvidos na diferenciação de células-tronco de dentes decíduos exfoliados humanos (SHED) em odontoblastos e células endoteliais
Dental pulp tissue engineering aims to replace the inflamed or necrotic pulp by a healthy and functionally competent tissue able to form new dentin in order to repair lost structure. The purposes of this work were: to evaluate the differentiation ability of stem cells from human exfoliated deciduous teeth (SHED) into functional odontoblasts, showing the form
Publicado em: 2009
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8. Efeito da radiação ionizante na formação da matriz organica do esmalte dentario / Effect of ionizing radiation in dental enamel organic matrix formation
The aim of this study was to evaluate the dental eruption rate, the organic enamel matrix birefringence, the odontogenic tissue morphology and the ultrastructure of secretory ameloblasts in incisor of rats submitted to high radiation doses. For this purpose, sixty male rats were used, the first thirty divided into three experimental groups: Control, 15Gy and
Publicado em: 2009
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9. Caracterização de células-tronco de polpa dental humana obtida de dentes decíduos e permanentes
Células-tronco adultas representam uma nova abordagem em terapia regenerativa. Recentes pesquisas revelaram que o tecido pulpar de dentes humanos permanentes e decíduos contém células-tronco com grande potencial proliferativo, apresentam capacidade de auto-renovação e de diferenciação em diversas linhagens celulares in vitro. O objetivo deste projeto
Publicado em: 2008
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10. Desenvolvimento osseo e dentario : aspectos biologicos, bioquimicos e moleculares da remodelação da matriz extracelular regulada pelas metaloproteinases de matriz e seus inibidores / Dental and bone development : biology, biochemistry, and molecular aspects of the matrix metalloproteinases and their inhibitors during extracellular matrix remodeling
Our objective was to analyse the spatial-temporal distribution of MMP-2, MMP-9, TIMP-1, TIMP-2 and RECK during development of mineralized tissue (bone, enamel, and dentine) in embryos, newborn, and adult mice by immunohistochemistry and in situ hybridization. During rat amelogenesis, at the secretion phase, MMPs and RECK were immunostained in the ameloblast
Publicado em: 2007
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11. Comportamento de células pulpares humanas expostas ao TGFβ1 a ao aFGF em cultura
O propósito do presente estudo foi avaliar o comportamento de células pulpares humanas expostas ao TGFβ1 e ao aFGF, em cultura, nas seguintes concentrações: TGFβ1 a 1ng/mL, TGFβ1 a 5ng/mL, TGFβ1 a 1ng/mL + aFGF a 5ng/mL, TGFβ1 a 5ng/mL + aFGF a 5ng/mL e aFGF a 5ng/mL. Foi avaliada a morfologia celular, a atividade da fosfatase alcalina, através de
Publicado em: 2007
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12. Efeitos da ingestão do alcool durante a gestação na imunoexpressão do EGF na amelogenese e dentinogenese do 1º molar inferior de ratos
Previous studies have reported that the maternal exposure to alcohol reduces the maxilo-fadal development, including a delay in the formation and eruption of the tooth, as well as, enamel anomalies. The mechanisms of these deleterious effects are not fully clarified. The objective of this study was to analyze using polyclonal antibody of the Epidermal Growth
Publicado em: 2004