Teeth can be moved at any age. Orthodontic treatment as an adult can completely transform an imperfect and poorly aligned smile into one that is attractive and functions at its best. However, initiating orthodontic care and achieving a successful outcome relies on the presence of healthy teeth and supporting bone. For these reasons, it is essential for adult patients to address any outstanding dental problems before their appliances are placed and to remain diligent about maintaining their oral health throughout care.