brushing and flossing really probably aren't the best way to clean your teeth, whether they're crooked or not. it's a kind of unsophisticated, brute force attack, and for a lot of people is probably creating more problems than solving.
these newer approaches seem to be superior, and will probably replace the older tactics altogether, in time.
but, i need to take it one thing at a time - if i can't get into the curved space behind my teeth with a brush, i need something to spray the area with, instead.