So I read that Invisalign can cause changes with saliva (either lots of dribbling or dry mouth) but I don't quite understand how it's made my lips so dry! They are really badly cracked and I've never suffered with this before. I'm using a lot of lip balm etc but I still need to be really aware before I smile in case I open the cracks up :S All the other 'bad' things about Invisalign have gone away (dribbling, problems with sharp edges, lisp etc) as I've had the trays in for about 10 days now, but my lips are just getting worse....anyone else suffering from this? Or anyone who has suffered from it and it's got better after a while?? Other than this, I am LOVING my Invisalign!