apparently they take a mold of your teeth and then make a new mold to correct the alignment of your teeth, and you wear it for a certain about of time each day. And they update the mold every so often as your teeth correct themselves.
I think. HAve I got this right? it sounds great, if yo uwouldn't have to go around with a brace on. as I'm in my late 30s and i would be self-conscious about wearing a brace.