Researchers at the University of Groningen in the Netherlands have created a process that can manufacture 3D-printed teeth and braces which are actually good for your other teeth, and dental health in general.
3D-Printable Antimicrobial Composite Resins [paid PDF access] outlines the development of the new plastic resin used in the process, which involves embedding antimicrobial quaternary ammonium salts inside extant dental resin polymers. Because the salts are positively charged, these disrupt negatively charged bacterial membranes, resulting in them bursting and dying. The mixture was then hardened with ultraviolet light. Continue reading “New Antimicrobial Composite Resins Make Possible 3D-Printed Teeth that Kill 99% of Bacteria”