ESTUDO COMPARATIVO ENTRE CINCO LIGAS DE NÃQUEL-CROMO NO TOCANTE A FLUIDEZ E CONSEQÃENTE REPRODUTIBILIDADE / Comparative study of five Ni-Cr alloys concerning castability and reproducibility.
AUTOR(ES)
MAURO D OLIVEIRA
DATA DE PUBLICAÇÃO
2004
RESUMO
The aim of this study was to verify the behavior of five brands of NiCr alloys, indicated to porcelain fused to metal restorations, comparing the castability with the ability of reproducing the thin edges of restoration margins. The samples were divided in five groups, each one for one brand, with ten repetitions for castability test and ten for edge reproduction, in a total of 100 specimens. A carbon free phosphate bonded investment was used for all casting procedures. Optical microscopy was used to investigate the microstructure of the specimens obtained with two of the alloys, those which have shown better results. Statistical analysis stated that the commercial brand Tilite showed both better castability and edge reproduction
ASSUNTO(S)
restauraÃÃo metalocerÃmica odontologia social e preventiva pfm (porcelain fused to metal) fluidez castability base metal alloys ligas alternativas
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