3D printing: The cutting edge of digital medicine

The first category, 3D printing of medical models and non-implanted medical devices, includes the printing of models of human tissues, structures and organs, braces, splints, glasses, hearing aid devices, prosthetics, etc. This category of 3D printed products will not be implanted within human body. The requirement of biocompatibility regarding materials in this category is relatively low, as long as no local allergy or adverse effects are detected.