French company 3DCeram has been doing great things with their Ceramaker ceramic 3D printer - including helping doctors to create 3D printed cranial prostheses. The custom-fitted implants are being 3D printed with 3DCeram's hydroxypatite biocompatible photopolymer ceramic, and doctors have been seeing great results, with patients experiencing significant bone regrowth and no infection. Read more at 3DPrint.com: https://3dprint.com/145972/ceramaker-cranial-implants/