What age patients can be treated with Invisalign?

Our office treats teenagers up to any age adult. Yes, we have treated patients in their 70's! The prime requirement is that patients be willing to wear each aligner all day, except during meals. In addition, patients need to wear a retainer at night for the rest of their lives to prevent relapse. About half of our cases are people who had braces when they were young and stopped wearing retainers after about two years.