Dr. Ken Stewart and team of doctors at Royal Hospital for Sick Children, Edinburgh, Scotland are now using 3D Printing technology to help children born with Microtia, a congenital condition in which the external ear is underdeveloped or undeveloped at birth. Using Artec Spider 3D Scanner, they are able to record the geometry of child's normal ear and use it to create a highly accurate model.
Source: https://www.artec3d.com/news/making-3d-printed-implants-children-ear-deformities