DON'T stop wearing your retainers. Wear them at least 3 or 4 night a week. I stopped wearing mine after my puppy got a hold of them, and figured my teeth were fine. My teeth then shifted SO GRADUALLY that I didn't really notice until a year later when I REALLY looked at my teeth and the damage was done. They're not horrible, but they're definitely not straight like they were, and my one side tooth bugs me now. I had new retainers made and wear them at least 3 nights a week and always will.