I can't recommend this procedure enough… I can't recommend this procedure enough to anyone I know as straight teeth make such a difference in my opinion. I was very dedicated and used them as recommended. I have finished my treatment and am over the moon with the result. I still use my last set of braces from time to time to protect the result. Anyone with negative comments must have not worn them as they should have as I have so many friends who are currently within their treatment period and they are very happy with the speed of things. Love love love it. Can't wait for my boys to get older and get these instead of those massive braces.