If you live in France, and soon elsewhere in Europe and in the U.S., and if you need a dental prosthesis, chances are good that RFID tags are involved in the manufacturing process, according to this article from the RFID Journal.

The tag is embedded by the dental lab in the cast which will be used to make the prosthesis. Then it is used to record the whole history of the crown, a process requested by a European sanitary regulation. Before delivering the bridge to your dentist, all the data is copied to a smart card that will be given to you.

The company is also studying the idea to put directly the tag inside the prosthesis. Maybe one day, when your dentist installs your new bridge, you'll also be the owner of a deactivated RFID tag inside it. This summary contains more details and a picture of the RFID tag used to record the life of your next crown.