I have had Invisalign and I'm glad i did it.
I was 24 when i started the treatment and was deperate not to wear metal braces at such an age. it took three years.
Firstly there are many cheaper alternatives now incl ClearStep which is essentially the same thing. I paid £5500 so you are getting a better price than me though.
The best thing about them is that you can take them out whenever you feel like it - I did not wear mine during the day even though i was told too - only at night and it worked fine.
Warning though - Invisialign or the similar treatments are NOT mean for severe crookedness!! they are for medium to minor misalignment.
The bottom line is that the benefits make it the only real alternative for those that do not want metal braces but they are not as good at the actual job as metal braces.
My teeth would be better if i had gone down the usual path but i never would have because the idea of spending every day for three years not wanting to open my mouth etc put me off.
You will be glad you did it but, if you have medium to severe teeth crowding then expect to be told by a responsible orthodontist that they are not suitable as indeed i was - but i actively serached for one that would do it and am happy i did.
one major issue i found with the treatment is that you are given , initially, a 3d image of what you will end up with - this was completely pefect and, as it turns out, BS for my case (quite bad overcrowding in my case - *may* not be the case for you
![Smile :) :)](/styles/default/xenforo/vbSmilies/Normal/smile.gif)
)*). invisialign does not provide the strength (they're only specialist plastic) to move large rows of teeth so dont be going in and expecting miracles even if you are promised them - you will be signing a contract with a million get-out clauses.
You will be glad you did it though - my teeth arent perfect but they are much better now.
hope that helps
![Smile :) :)](/styles/default/xenforo/vbSmilies/Normal/smile.gif)