Study on Dental Colored Zirconia Restoration

Abstract:

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This paper explored the color and mechanical properties of CeO2 and Er2O3 shaded zirconia ceramics for dental application. Twelve kinds of colored dental ZrO2 powders were prepared. Experimental results showed that the hue of the materials shift from yellow-green to yellow-red with the increasing concentration of the CeO2 and Er2O3, while reducing of the brightness( L* ) value was little. Three-point bending strength decreased form 1209MPa to 845MPa after coloring, which was lower than the uncolored materials (1301MPa). The fracture toughness decrease slightly. SEM observation revealed more porous microstructure in specimen containing both two additives. Cerium oxide and erbium oxide are candidates of color additives for shading dental zirconia ceramics.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1255-1257

DOI:

10.4028/www.scientific.net/KEM.368-372.1255

Citation:

N. Wen et al., "Study on Dental Colored Zirconia Restoration", Key Engineering Materials, Vols. 368-372, pp. 1255-1257, 2008

Online since:

February 2008

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Price:

$35.00

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