3D printing 95 3-D printing 38 3D printers 32 3D-printing 30 Additive manufacturing 16 Additives 15 additive manufacturing 13 three dimensional printing 13 Printing, Three-Dimensional 11 Hydrogels 7 Fabrication 6 Humans 6 Tissue engineering 6 human 6 Compressive strength 5 Costs 5 Deposition 5 Low-costs 5 3D Printing 4 Article 4 Compression testing 4 Curing 4 Molds 4 Repair 4 Robotics 4 Sintering 4 Tensile strength 4 chemistry 4 procedures 4 3D modeling 3