But the beauty of Invisalign is that you get clear retainers afterwards that look and feel just the Invisalign trays, so patients are more likely to wear them as opposed to the old plastic and wire ugly retainers of yesteryear.
All teeth will shift after teeth straightening if not held in place...
If you have seen the Invisalign Clin-Check (computer simulation), and your trays have the markings described above, then it sounds like your Invisalign trays are not fitting properly. Sometimes it takes a few days for the tray to seat all the way -- and in that time the space of plastic you see...
Simple question, simple answer. Your parent does not need to be there for all your appointments though, once the consent is signed. They can drop you off and then pick you up when you're finished. Very easy appointments.