Changes in tooth position are a lifelong and naturally occurring phenomenon, and to maintain the result created by your orthodontic treatment, retainers must be worn. While small changes after treatment are normal, retainers prevent teeth from going back to their original positions.
Do I Need a Retainer?
Retainers are prescribed for two reasons:
To allow the bone that holds teeth to rebuild after teeth have moved
To maintain the healthy new positions of teeth after active orthodontic treatment ends
Your body changes your whole life, including your teeth!