Abstract: In a method for producing two-membered or multi-membered all-ceramic dental shaped parts, such as framework elements for bridges and the like, a model is first produced from the basic structure for which the dental shaped part is intended. With the aid of this model and a suspension of ceramic particles, a ceramic green body is formed, in particular by electrophoretic deposition, and is subsequently sintered. In said method, at least some of the dimensions of the model are selected so that the shrinkage which occurs during sintering of the green body is compensated, in order in this way to achieve the desired fit between dental shaped part and basic structure.

Abstract: The invention describes a model material for dental purposes which has a linear expansion on setting or curing of at least 0.5%, preferably at least 1%. The model material is preferably a dental plaster which has a relatively high volume expansion on setting compared to dental plasters customary hitherto as a result of the use of appropriate additives and/or make-up liquids. The use of these model materials for producing working models enables the sintering shrinkage occurring during sintering to be compensated for in the production of full-ceramic shaped dental parts.