Retainers
Moderator: bbsadmin
I think you need to be more specific. Some retainers are just like the invisaligns, I think. The retainer I had was a little thicker. Some people get permanent metal bars that are placed on the inside (lingual).

Brackets off 6/5/08
Invisaligns on 7/28/08
(7 Week delay)
21 of 23 U&L (Skipped a tray/On a 10 day rotation)

Class II subdivision right
Moderate upper/lower crowding
Partial anterior crossbite
Normal overbite/overjet
Sentence: 18-20 months
If you poke around in the Naked Tooth forum you'll find lots of info on the different types of retainers, and the pros and cons of each. In the end I just went with what my ortho provided, an essix-type retainer which is similar to an Invisalign tray.

All Metal Uppers and Lowers - brackets placed with OrthoCAD
Braces on 2/1/2007, Removed 2/13/2008, now in Essix retainers.