So I've noticed there are so many more posts with the Invisalign,is it because its been around way longer and clear correct is much newer? I really never new there was different options until I got my Clear correct. I find they are very similar but can be different. Some good and bad reviews in both, and im sure it has a lot to do with personal experience and the time you really spend wearing them. My big question is why do I change mine out every 3 weeks but I see Invisalign changes them out every 2 weeks and sooner ! Also Invisalign uses a device like acceledent to help speed up the process...is this only for Invisalign users? Why is there so much difference in them and how they perform if they are so similar? Does this make sense? Thanks!! I am on my first tray 1a on my 2nd week...time please go by fast!!!!