Orthodontic treatment can be successful at any age. Adults especially appreciate the benefits of having a beautiful smile. One out of every five patients in orthodontic treatment is over 21. Adults may have experienced some breakdown or loss of their teeth and supporting bone structure, which  may require periodontal treatment before, during or after orthodontic treatment. Bone loss can also limit the amount and direction of tooth movement that is advisable.  Dr. Burns may recommend jaw surgeryadult orthodontic patients because their jaws are no longer growing.