Following my semi-annual dental check-up yesterday my dentist showed me some amazing technology. Not so long ago getting a crown meant taking an impression; a temporary crown; and a long wait for a lab to make the permanent crown. No longer. Meet the Sirona Cerec MC XL Dental Milling Machine. Sort of a 3D printer in reverse.
The scanner creates a 3D image which is then recreated by the milling machine.  CAD/CAM technology has revolutionized dentistry.  My dentist has two milling machines, the original will do single crowns, veneers, etc.  The XL machine uses a bigger block so can do 3-4 unit bridges. The zirconium cube from which the crown is milled has a bar code that is read and stored so if the crown needs to be recreated they don’t have to start from scratch.

In my youth, going to the dentist was a little trip to hell. It has gotten so much better.