Fig. 2

BCP block fabrication process by Digital Light Processing (DLP). A Photoreactive ceramic-resin composite composed of hydroxyapatite (HA)/tricalcium phosphate (TCP), acrylic monomers, a dispersant, and a photo-catalyst were mixed in the ceramic slurry. B Ultraviolet light was projected to polymerize the slurry and to form the specimen, which was attached to a build plate that slowly moved upward during printing. C After the printing was completed, the polymer was completely removed using a heat-treatment step, where the scaffolds were sintered at 1250 °C for 10 h in an electrically heated chamber furnace in ambient air. D The polymer residue was removed during sintering by pyrolysis, and the pure BCP block was obtained