Before robots in China become self-aware and use their drilling tools for something other than permanently implanting 3D printed replacement teeth, they are filling in for a shortage of dentists in China. If you scroll down on this page, you even get to see a video of some of the procedure taking place. Thanks cageymaru. It conducts the surgery by itself so it can avoid faults caused by human error. The artificial teeth it implanted were created by 3D printing, he added.