[Additive manufacturing in health care (part 2) : printing organs of vital importance].

In a previous article, we highlighted the technical characteristics and economical advantages of additive manufacturing, especially for medical material as well as "hard" body structures without vital function (bone, cartilage and teeth). In the present paper we illustrate the technological advances in the field of printing vital organs. From a simple idea to a proof of concept, steps will be taken rapidly in order to introduce these techniques for functional replacement in the clinics in order to solve the ever-growing gap between supply and demand in the field of organ transplantation.