Effects of cerium oxide content on the color of alumina-glass composite / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)2001.
Article
in Chinese
| WPRIM
| ID: wpr-537621
ABSTRACT
objective:
To investigate the effects of cerium oxide content on the color of alumina glass composite.Methods:
Infiltration glass powder with different content of cerium oxide (1%~4%) were fabricated. Alumina glass composite was prepared by infiltrating molten glass into presintered alumina block at 1 250 ℃ for 2 h, and the color of the alumina glass composite were measured with Minolta chromatic instrument(CR 321) . For comparison, the color of VITA In Ceram alumina technical shade guide was recorded too.Results:
After infiltration, the b * range of the alumina glass composite was in accord with that of the shade guide. With the increasing content of the cerium oxide, a *, b * and chroma increased, L * decreased, the hue of the alumina glass composite shifted from yellow green to yellow red.Conclusion:
Cerium oxide may effectively enhance b * of the alumina glass composite, but its ability of reducing L * and enhancing a * is weak.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2001
Type:
Article
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