Development of dental porcelains for the making of dental prosthetics

• Grant number: 03/07920-6
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: November 01, 2004
• End date: August 31, 2005
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Roberto Queiroz Martins Alcantara
• Grantee: Roberto Queiroz Martins Alcantara
• Company: Angelus Lab Laboratório de Pesquisa Industrial Ltda
• City: São Paulo

Abstract

Among the restoration materials used in dentistry, ceramics are the oldest and most widely used for the making of prosthetics. Ceramics offer countless advantages, such as: extreme hardness, high resistance to compression and wear, chemical inertia, color stability and, principally, excellent esthetic properties. However, as it is an imported material, it represents a high cost, precisely due to duties and the fluctuating dollar price. The development of a national product with characteristics similar or superior to imported dental porcelains and at a lower cost is an object of great interest, for professionals in the area as well as for society. Therefore, in the first phase of this work, physico-chemical characterizations of the main lines of commercial porcelains used as covering for metaloceramic restorations will be carried out. This will enable the definition of process parameters that will be adopted in two routes of synthesis: the mixture and fusion of oxides and processing of polymeric (Pechini) precursors. Once the main physical and chemical properties have been reproduced, application tests will be carried out together with professionals specialized in the area. (AU)