Natural bone has the capacity to self-repair as long as the defect is small. However, once the defect exceeds a critical size, the body needs artificial support to restore the missing structure. Artificial bone replacement is designed to regenerate damaged material by mimicking natural bone tissue in structure and mechanics. The implant serves as a replacement for the missing endogenous bone and must withstand applied loads, including handling of the implant before and during surgery, as well as the stress needed to keep the implant in place. Structural similarities such as a specific degree of porosity facilitate bone ingrowth and vascularisation. Since every patient, and therefore every bone defect, is unique, additive manufacturing (AM) has great potential for personalized and customized solutions in implantology. We use digital light processing (DLP) based vat polymerisation, which selectively cures photopolymers filled with ceramic powders layer by layer. The excellent geometric resolution of the process enables precise replication of the patient's complex anatomy. Hydroxyapatite or tricalcium phosphate ceramics have impressive properties, such as osteoconductivity or osteoinductivity, and bioresorbability. However, their poor mechanical properties restrict their use to small bone replacement implants. Zirconia, on the other hand, has high compressive and flexural strength and is also biocompatible. Therefore, we fabricated pieces of hydroxyapatite and tricalcium phosphate joined with zirconia during the sintering process to selectively enhance specific areas. We investigated different designs, sintering temperatures, and holding times.