What are invasalines?!

What are invasalines?

ok i might need braces my mom says i am getting invasalines are they inviable?do you pick a color?can you have like gum or hard stuff with invasalines?any pics plz

6 days ago
cool but umm are they cheaper than braces
so its like eatting normal things

6 days ago
i will be thankful
BUT ARE THEY CHEAPER?

They are basically like little plastic trays (or retainers) that get changed frequently to move your teeth. They are clear, other people probably won't notice you have them on. You take them out to eat, but leave them on otherwise. Check out the website for pictures and more information:

http://www.invisalign.com/generalapp/us/...