The Color of Fe2O3 and Bi2O3 Pigmented Dental Zirconia Ceramic

Abstract:

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The aim of this study was to explored the effects of Fe2O3 and Bi2O3 on the color properties of a 3Y-TZP zirconia ceramics for dental application. Pigmented dental ZrO2 powders were prepared by mixing different concentration of Fe2O3 and Bi2O3, also in their combinations with 3Y-TZP powders. The mixture was compacted by isostastic pressure, then densely sintered. Color parameters were measured by Minolta CM2600d spectrophotometer. XRD was used to exam the structure of colored 3Y-TZP. Experimental results showed that the hue of the materials shift from yellow-green to yellow-red with the increasing concentration of the Fe2O3 and Bi2O3. Combined use of Fe2O3 and Bi2O3 could further decrease the L* value, which color scope was suitable for dental color matching. The XRD spectra showed only tetragonal phase was detected.

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Edited by:

Wei Pan and Jianghong Gong

Pages:

582-585

DOI:

10.4028/www.scientific.net/KEM.434-435.582

Citation:

N. Wen et al., "The Color of Fe2O3 and Bi2O3 Pigmented Dental Zirconia Ceramic", Key Engineering Materials, Vols. 434-435, pp. 582-585, 2010

Online since:

March 2010

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Price:

$35.00

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