3D printer provides woman with a brand new jaw
Source: New Scientist An 83-year-old Belgian woman is able to chew, speak and breathe normally again after a machine printed her a new jawbone. Made from a fine titanium powder sculpted by a precision laser beam, her replacement jaw has proven as functional as her own used to be before a potent infection, called osteomyelitis, all but destroyed it. The medics behind the feat say it is a first. "This is a world premiere, the first time a patient‐specific implant has replaced the entire lower jaw," says Jules Poukens, the researcher who led the operation at Biomed, the biomedical research department of the University of Hasselt, in Belgium. "It's a cautious, but firm step." Until now, the largest 3D-printed implant is thought to have been half of a man's upper jawbone, in a 2008 operation in Finland. In this operation, a 3D printed titanium scaffold was steeped in stem cells and allowed to grow biocompatible tissue inside the abdomen of the recipient. Then, in 2009, researchers reported successfully printing copies of whole thumb bones - opening the way for the replacement of smashed digits using information from MRI scans. Poukens' team worked with researchers in Belgium and the Netherlands and a 3D printing firm called Layerwise in Leuven, Belgium, which specialises in printing with ultrastrong titanium to make dental implants (like bridges and crowns) and facial and spinal bone implants. By using an MRI scan of their patient's ailing jawbone to get [...]