| 摘要 |
The invention relates to the production of substructures, especially copings, consisting of ceramic material, preferably alumina. The stump of a work model is lined with a film or a separating agent. This lining is made electroconductive by e.g. using a metallized film or applying a silver coating. The stump is dipped in slip and a direct voltage is applied, causing the stump to be coated with an even ceramic, e.g. alumina layer which can be baked into a ceramic blank immediately after drying. The resistance of said ceramic blank is then increased by glass infiltration. Post-processing is not necessary since the ceramic material is deposited with a very even layer thickness. The inventive method is associated with a considerable saving of time in the production of a full ceramic tooth replacement. |
