Invisalign: Brace Yourself
Finished my course of Invisalign braces (started Dec. 2014, done Feb. 2015). Every two weeks you switch the aligners (thin transparent retainers), every s you check in at the dentist to make sure all your teeth are being shifted according to the dynamic model of correction that the company creates based on some positive / negative molds and 3D scanning.
If you are considering these, I would consider a few things. Research on Google Scholar, the private company Align Technology Inc. stocks, and the cleaning of the trays with fancy crystals and an electric toothbrush.