Yes. Regardless of which appliances we used to correct your smile - either braces or Invisalign, the new position of the teeth needs to be maintained with retainers. For Invisalign patients, the retainers are similar to the clear plastic aligners that were used to move the teeth. The only difference is that the retainers will be worn nights only. The usual retention period is to wear your retainers every night for 2 years, and then gradually scale down to 1 or 2 nights per week.