| 摘要 |
The method for producing ceramic coping of the present invention comprises the following steps: (i) covering a tooth model with at least one layer of plastic; (ii) coating a plastic covered tooth model from step (i) with fused alumina gel and letting it dry to form a ceramic coping in green state; (iii) sintering the ceramic coping in green state from step (ii) at a temperature from 950 to 12000C; (iv) coating the ceramic coping from step (iii) with crystal powder; (v) crystal hardening the crystal powder coated ceramic coping from step (iv) at a temperature up to 11800C. Then, the finished ceramic coping-crystal hardened ceramic coping can be coated with an outer aesthetic layer to form a dental prosthesis. |
