i've heard that the pressure is probably similar to having braces tightened....once your mouth gets used to it, it's time to tighten yet again.
I went through headgear, rubber bands, 8 teeth removed, 4 years of full top/bottom braces and 2 years of top/bottom retainer...it sucked!!!! and the worst thing, my teeth are now moving back into their old position which is causing recession...dentist says best way to fix - BRACES, again
