I've had my invisaligns for 6 1/2 months now. It was a little rough going at first. I lisped, one of my teeth was really turned, I have eight buttons, the invaslign didn't sit properly over the really turned tooth so I needed dental wax for the first two months. I got used to them really quickly! My bottom teeth are finished already, I have another six months for the top. No one notices them, not even the buttons. I don't lisp anymore either. Not only am I used to them, I actually feel a little funny when I take them out.
For the first day or two of a new tray, it is a little uncomfortable to take them out. Other than that, they are fine. My bite is better, my teeth are so much straighter, I smile all the time now. I know they won't fully correct my overbite, I'm not expecting it. I don't even know if they will FULLY correct my crooked teeth, but so far they are doing a fantastic job and I love the change already. I've also gotten very used to brushing my teeth in public bathrooms.
One more thing, my dental hygiene has gotten so much better. Now when I get my teeth cleaned, it doesn't hurt at all! Don't get me wrong, it is a bit of a pain to have to take them out to eat and brush right after, but so far it's been so worth it. I'm 43.
Updated on May 24, 2010:
After thirteen months of treatment I am now on my retainers. I am thrilled with the results. I was told to wear my retainers just like the aligners for at least six months, then I can go to nighttime only. I plan to wear the retainers for the rest of my life. I had a mouthful of attachments, they are gone now. No one notices the retainer. I am 43, I spent enough time and money and I do not want my teeth to shift back.
I chose uncomfortable, although they were not. The first day or two of the new aligners are a bit uncomfortable, but then they are fine.
I didn't take before pictures, but I tried to find some of my teeth. The first two are before, although you can't really see how bad the crooked teeth were, or the overbite. Photo 3 is during treatment with a mouthful of buttons, and picture 4 was taken yesterday.