Metalurgia Odontologica
Mostrando 1-6 de 6 artigos, teses e dissertações.
-
1. Avaliação comparativa de propriedades geradas pelos processos de soldagem TIG e brasagem em uma liga odontológica à base de Ni-Cr / Comparative assessment of properties generated by the process of TIG welding and brazing in a Ni-Cr dental alloy
The purpose of this study was to compare, by means of microhardness testing and metallurgical characterization techniques as metallography, optical microscopy, scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS), mechanical and metallurgical properties of welded joints by TIG and brazing methods in a dental alloy based on Ni-Cr (FIT-C
Publicado em: 2009
-
2. Analise de falhas de instrumentos endodonticos rotatorios de Ni-Ti em odontologia / Failure analysis of rotary endodontic instruments of Ni-Ti in dentistry
Rotary endodontic instruments of Ni-Ti (rotary files) are used in order to prepare endodontic dental conducts and show memory shape, high flexibility, and different designs. Although these characteristics, when used in endodontics clinic, sometimes occur fracture inside the conduct of the tooth and, as a result of that, low life, high cost, and iatrogen. The
Publicado em: 2008
-
3. Produção de implantes de titânio, via moldagem por injeção de pós de hidretos de titânio
O objetivo deste trabalho foi a produção e caracterização de componentes sinterizados de titânio para aplicação biomédica, obtidos através do processo de fabricação chamado de Moldagem de Pós por Injeção ( MPI ), ou “Metal Injection Molding” ( MIM ) na língua inglesa. Para a produção dos componentes de titânio, utilizou-se de pós de hi
Publicado em: 2007
-
4. Avaliação da adaptação cervical de coroas totais metalicas com diferentes terminos antes e apos a cimentação
The purpose of this study was to analyse the cervical fits before and after cementation of full cast crowns made with nickel-chromium alloy (Verabond 11), with three different marginal designs: 45-degree chamfered, 20-degree bevel shoulder and right shoulder, on the bovino teeth with zinc phosphate, glass ionomer and resin cements. Ninety crowns were cast wi
Publicado em: 2000
-
5. Influencia de fontes de calor de fundição, configurações marginais e alivio interno, na adaptação cervical e interna de coroas totais metalicas
Regarding the existenting difficulties in making casting restorations, where the minimal cervical discrepancy lead to a future serious clinical problems, this research will analyse the cervical and internal fits of total metal crowns with or not internal relief (die-spacing, acid conditioning and sandblaster with aluminiun oxide), making with palladium-silve
Publicado em: 1999
-
6. Resistencia mecanica e microestrutura de duas ligas odontologicas fundidas a base de cobalto
Cobalt alloys are utilizcd in various applications, includingaeroplane turbines, cutting tools, cardiac valvcs and prosthesis. These alloys have been used in dentistry for more than half a century in prosthesis, because of their excellent charactheristics in terms of biocompatibility, strength, oxidation resistance, dcnsity, and castability. But, the fail in
Publicado em: 1994