| 摘要 |
An artificial tooth of polymethacrylate, barium aluminum silicate glass and microfine silicon dioxide is described that imitates the natural tooth in its essential properties, namely mechanical strength and abrasion performance as well as transparency and depth of color. The tooth contains 15 to 35 weight % polymethacrylate, 35 to 75 weight % barium aluminum silicate glass with a mean particle size of from 0.1 to 5 micrometers, and 5 to 25 weight % silicon dioxide with a mean particle size of from 0.01 to 0.2 micrometers. In addition pigments necessary to match cosmetic requirements, are normally added as necessary.
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