SensAble has released a dental lab system that allows dental technicians to create a digital model of dental crowns and bridges using a pen-like interface. A 3-D printer is then used to produce a resin prototype, which is then cast into metal for insertion.
According to the company this process takes half the time of conventional methods.
3-D printers and desktop manufacturing are rapidly improving in performance. Already in wide use for prototyping, as the example of above shows they are increasingly being used to make products.
I saw this in Popular Science but could not find it on their website.