Abstract
There is increasing demand from adult patients for orthodontic treatment, either purely for aesthetics, to improve aesthetics or function following previous disease, or to facilitate the stabilization, restoration or replacement of teeth. Orthodontics may have a major role in the rehabilitation of patients suffering the effects of advanced periodontal disease, but there are a number of important factors to be considered in the management of such patients if the optimal outcome is to be obtained. This paper summarizes important aspects of treatment and the potential complications and how to avoid them.