Your teeth are cleaned professionally. Immediately afterwards, a fully accurate mold is made of the inside of your mouth. A three-dimensional image of the mold is uploaded to a computer, which then instructs a mechanized device to remove everything from your mouth that is not your teeth, gums, etc. via ultra-high frequency sound waves or the like.

A new mold will made every so often to reflect natural changes of the configuration of your mouth (growth, tooth movement, etc.)
-- snarfyguy, Jun 04 2001

Make sure your jaw is in the exact position it was when the recording was made, and hold very very still...
-- bookworm, Jun 04 2001


AHH!! my thung! my thung!
-- DesertFox, May 05 2004



random, halfbakery