Verificação da dureza de gessos em função da compatibilidade com materiais de moldagem à base de borracha

• Ano de defesa: 1986
• Autor(a) principal: Araujo, Rosehelene Marotta [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Materiais dentários; Moldagem dentaria; Gesso; Dental materials
• Link de acesso: http://hdl.handle.net/11449/110744

Currently the most widespread material used in dies is gypsum that together with its simple technique has very satisfactory mechanical, chemical and physical properties. However, its compactibility with the impression materials can compromise the die surface quality. In our work, we studies the hardness of the two gypsum types: Type III (die stone) and type IV (improved die stone), as well as the influence of the contact with three types of impression materials: polymerized silicone for condensation (Xantopren), polysulfide (Permlastic) and polymerized silicone by addition (Provil). As comparison parameter gypsum was used in contact with a glass surface…(Complete abstract click electronic access below)