As briefly mentioned above, multiple sets of clear braces are custom made for each patient. Each set of trays are constructed to gradually add pressure to the teeth that need moved in order to shift them slightly into alignment over time.
Because the clear braces are switched out every couple weeks, each new set will make the your teeth slightly more aligned in shape and contour than the previous set. By the time you get to the last set of aligners, your teeth should be inline with you and the dentist’s goals or revisions can be made.
After everyone is happy with the results, a maintainer aligner is worn at night to keep your teeth straight for many years to come.