So I have an essix plastic retainer. I was meant to get a replacement one today but the stupid orthodontist "forgot" to put the order through, meaning I waited two weeks for nothing, and I'll have to wait at least two more weeks for another one. i have a small crack in the retainer on the sides and some holes. will my teeth move much? they've had holes in them for a few years but the crack only appeared relatively recently. it's very small and the retainer is still in tact