Coloration of mica glass ceramic for use in dental CAD/CAM system / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 137-139, 2003.
Artigo
em Chinês
| WPRIM
| ID: wpr-253760
ABSTRACT
<p><b>OBJECTIVE</b>An intrinsically colored machinable glass-ceramic containing tetrasilicic fluormica as the predominant crystal phase was studied, which was used in molar crown in dental CAD/CAM system.</p><p><b>METHODS</b>Orthogonal design analysis was used to select appropriate base formula, coloration and heat treatment process.</p><p><b>RESULTS</b>Factors influencing the color appearance of mica glass ceramic were nucleation agent and the ratio of Mg(2+) to K(+) in base formula; Cerium oxide (CeO(2)) was used as the main coloration; The preferred heat treatment was 650 degrees C for 1 h and 1,000 degrees C or 1,050 degrees C for 3 h - 4 h.</p><p><b>CONCLUSIONS</b>This mica glass-ceramic could provide 4 to 5 color appearance for dental use, it showed excellent machinability which was eminently suitable for use in dental CAD/CAM system.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Química
/
Desenho Assistido por Computador
/
Cor
/
Coroas
/
Porcelana Dentária
/
Silicatos de Alumínio
/
Vidro
/
Dente Molar
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2003
Tipo de documento:
Artigo
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