“A man has had 75 per cent of his skull replaced with a custom-made 3D-printed implant. The un-named patient in the United States had his head imaged by a 3D scanner before the plastic prosthetic was crafted to suit his features.  Oxford Performance Materials in Connecticut then gained approval from US regulators before the printed bone replacement was inserted in his skull during a surgical procedure earlier this week.  The ground-breaking operation has only now been revealed.  The company says it can now provide the 3D printouts to replace bone damaged by disease or trauma after the US Food and Drug Administration granted approval on February 18.”