Silicone Elastomers
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Correlação estrutura-propriedades de silicones para prótese facial - Efeitos da pigmentação e do envelhecimento / Correlation structure-properties of silicones for facial prosthesis - Effects of pigmentation and aging
Este estudo avaliou a dureza Shore A, alteração de cor, recuperação elástica e resistência ao rasgamento de um silicone experimental (Ortho Pauher - O), quando comparado a um silicone usado em reabilitações faciais (MDX 4-4210 - MDX), quando submetidos à pigmentação e envelhecimento e ainda, analisou a micro estrutura desses materiais. Para análi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2012
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2. Avaliação das propriedades físicas de dois materiais flexíveis de produção nacional para uso em prótese facial / Evaluation of the physical properties of two flexível materials domestic produced, to create facial prosthesis
Para confeccionar próteses faciais e reabilitar aqueles pacientes com perdas anatômicas, são empregados diversos materiais, destacando-se entre estes os flexíveis,devido á semelhança estética que apresentam com a pele humana. O padrão de qualidade dos materiais é liderado por produtos estrangeiros, tornando difícil a obtenção e, por tanto, a apli
Publicado em: 2011
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3. Influência do tipo de material de moldagem e do tempo para vazamento do molde na estabilidade dimensional dos modelos de gesso
A delay in pouring elastomeric impressions may be the cause of cast dimensional alterations, resulting in a bad adaptation of the restorative prosthetic. This study aims to evaluate, in-vitro, the influence of differents elastomeric materials and the time passed to pour the cast on its dimensional alteration, by means of a method which simulates the conditio
Publicado em: 2008
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4. Influencia do conteudo volumetrico das particulas de cargas nas propriedades mecanicas de diferentes materiais de moldagem / Mechanical properties of impression materials by volumetric filler content
Based on the incomplete understanding on how filler features influence the properties of elastomeric impression materials, the purpose of this study was to determine the inorganic filler fraction and size of five commercially available alginates (Jeltrate; Jeltrate Plus, Jeltrate Chromatic Ortho, Hydrogum e Ezact Krom) and nine addition/condensation silicone
Publicado em: 2008
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5. Macroplastique Implantation System (MIS) para o tratamento da incontinencia urinaria de esforço feminina : analise de dados objetivos, subjetivos e do impacto na qualidade de vida
Urinary incontinence is defined by the International Continence Society as the complaint of any involuntary leakage of urine. It is considered a distressing and disabling condition, causing impairment in several aspects of patients quality of life. Nowadays, there are many treatment options available, ranging from the least invasive, such as physiotherapy of
Publicado em: 2005
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6. Estudo dos ganglios linfaticos e reação tissular local em animais submetidos a implante subcutaneo de silicona gel, elastomero liso e texturizado
Silicones are a biomaterial used in the production of implants and applied in several medical fields; it consists of polymers presenting three basic types: liquid, gel and elastomers which differ among themselves in length and degree of polydymethilsiloxane chain reticulation. Its use is controversial since it is related to several organic reactions such as
Publicado em: 2001
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7. Estudo comparativo de troquéis obtidos pela técnica convencional e correção
The purpose of this research was to study the practicability of a reline impression technique in individual impressions using polyether, polysulfide and addition silicone, regular consistency. A stainless-steel master die simulating a complete crown preparation was used. The assessment of the adaptation was made using a metallic crown fitted to the master di
Publicado em: 2000
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8. Silicatein filaments and subunits from a marine sponge direct the polymerization of silica and silicones in vitro
Nanoscale control of the polymerization of silicon and oxygen determines the structures and properties of a wide range of siloxane-based materials, including glasses, ceramics, mesoporous molecular sieves and catalysts, elastomers, resins, insulators, optical coatings, and photoluminescent polymers. In contrast to anthropogenic and geological syntheses of th
The National Academy of Sciences.