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Sunday, May 1, 2016
3D-printing dentists are recreating entire jaws.
3D-printing has been used for basic dental procedures for years – and the technology is now advanced enough to reconstruct entire jaws. Andrew Dawood, a dentist with Dawood and Tanner, told the audience at WIRED Health that they have used the lost wax technique which has been around 5,000 years,but 3D-printing has allowed him to do more with patients and do it faster.
Dawood explained that he was able to design and print the frameowrk, cutting guides and parts needed to perform complex dental surgery. He said all it required was data collected from 3D scans and patient records. Plaster of Paris parts used for surgery are now 3D-printed and Dawood also uses plastics, rubbers, and metals while printing. He said they are not 3D-printing bone yet,but will one day.
A technique to make and 3D-printed human bone hasn't been developed yet, but Dawood and other surgeons are already using bone from other parts of the body to reconstruct entire jaws in the most complex cases.
Josh Stephenson, a designer and one of Dawood's patients, had his jaw reconstructed after suffering from a malignant melanoma. After unsuccessful radiotherapy treatment, Stephenson underwent surgery to remove his left eye, upper left jaw and the roof of his mouth. Using a 3D-scanned and printed copy of Stephenson's skull it was possible to recreate the missing parts of his jaw.
Stephenson, who is a graphic designer, has since used the same 3D-scanning and printing technique to create new products. Dawood was able to asses the dentistry work needed from the 3D-printed model and then say how surgery to repair it should be carried out.
Using "bone taken from [Stephenson's] scapular" the dentist and other surgeons reconstructed his jaw. Using this type of technology, there can be more accurate intervention and quick return of patient to society .
culled from wired.co.uk
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