A process for producing a non-dense sintered ceramic molded body having at least two layers, wherein a first powdery ceramic material forming a layer is contacted with at least a second powdery material forming at least a second layer; said first powdery material has a presintering temperature T 1 that is higher than the presintering temperature Ts of said at least second powdery ceramic material; the course of a curve of shrinkage S 1 of said at least first powdery ceramic material differs from the course of a curve of shrinkage S 2 of said at least second powdery material, wherein curve of shrinkage S 1 is shifted towards higher temperatures as compared to curve of shrinkage S 2 ; and the layers are subjected to a common temperature treatment at a presintering temperature Ts which is within a range of from 850 °C to 1250 °C and that is lower than the presintering temperature T 1 which is within a range of from 900 °C to 1300 °C and wherein said temperature T s is at least equal to presintering temperature T 3 , and wherein T 3 is within a range of from 850 °C to 1200 °C, to cause sintering that remains in a stage of sintering that has not proceeded to the theoretical density; wherein the curve of shrinkage S 1 is modified by admixing at least one component having a curve of shrinkage S 3 which material is compatible with said powdery ceramic material into said first powdery ceramic material, and which has a grain size smaller than the first powdery ceramic material, to equalize the curves of shrinkage S 1 and S 3 in the region of the presintering temperature Ts; and wherein said first powdery ceramic material contains yttrium-stabilized zirconia, and wherein said at least second powdery ceramic material contains colored yttrium-stabilized zirconia. wherein a first powdery ceramic material forming a layer is contacted with at least a second powdery material forming at least a second layer; said first powdery material has a presintering temperature T 1 that is higher than the presintering temperature Ts of said at least second powdery ceramic material; the course of a curve of shrinkage S 1 of said at least first powdery ceramic material differs from the course of a curve of shrinkage S 2 of said at least second powdery material, wherein curve of shrinkage S 1 is shifted towards higher temperatures as compared to curve of shrinkage S 2 ; and the layers are subjected to a common temperature treatment at a presintering temperature Ts which is within a range of from 850 °C to 1250 °C and that is lower than the presintering temperature T 1 which is within a range of from 900 °C to 1300 °C and wherein said temperature T s is at least equal to presintering temperature T 3 , and wherein T 3 is within a range of from 850 °C to 1200 °C, to cause sintering that remains in a stage of sintering that has not proceeded to the theoretical density; wherein the curve of shrinkage S 1 is modified by admixing at least one component having a curve of shrinkage S 3 which material is compatible with said powdery ceramic material into said first powdery ceramic material, and which has a grain size smaller than the first powdery ceramic material, to equalize the curves of shrinkage S 1 and S 3 in the region of the presintering temperature Ts; and wherein said first powdery ceramic material contains yttrium-stabilized zirconia, and wherein said at least second powdery ceramic material contains colored yttrium-stabilized zirconia. <EOS>