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.
Article
in Chinese
| 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>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Chemistry
/
Computer-Aided Design
/
Color
/
Crowns
/
Dental Porcelain
/
Aluminum Silicates
/
Glass
/
Molar
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2003
Type:
Article
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