Slurry comprises ceramic particle, wax and additionally at least one radically polymerizable monomer. Independent claims are included for: (1) preparing green body comprising forming the above slurry in layer-wise manner to the geometrical form of the green body, and subjecting to radical polymerization to obtain a hardened green body; (2) ceramic green body obtained by the above method; and (3) preparing a ceramic molded body comprising preparing the green body as above per se, subjecting the green body to heat treatment for removing the binder (debinding) to obtain white body, and dense sintering the white body.