Don't Wear Old Orthodontic Retainers

Is it a good idea to start wearing my orthodontic retainers again if I haven't worn them for months or years? No, especially if you feel your teeth have moved over time.  Teeth cannot move into a space already occupied by another tooth.  Attempting to wear orthodontic retainers that haven't been worn for a long period will not move teeth back to the position they were in when your braces came off.  What it will do is create headaches and sore teeth, but no movement. Check with your dentist before starting to wear old orthodontic retainers…it will save you a headache later.