I got my braces off about 3 years ago, and i never wore my retainers because i was careless. I am 17 now and i was wondering if my old retainers will move back my teeth. I have a lot of anxiety about it now so i was wondering if the retainers will straighten my teeth even if it fits half way. it hurts a lot but im willing to take the pain since i cant afford braces again financially. All i want to know is will it straighten my teeth.