I'm thinking about correcting my teeth. If I'm not mistaken there are three main ways to do so: regular braces, braces which are on the inside of the teeth and Invisalign. Does anybody have any experience with training BJJ and correcting teeth? I imaging with braces it's impossible to wear a mouth guard and you could hurt yourself. Since you have to use Invisalign 22hrs per day it's impossible to take them out all the time (eating, drinking, training etc). Do they work as a mouth guard themselves?