Many adults are unhappy with their teeth and getting braces. With age, teeth often become more crowded or crooked. In addition, some problems with bite and alignment become apparent when they begin to cause pain or tooth damage. Some adults did not grow up in families that could afford high-quality dentistry or orthodontics and thus are interested in straightening their teeth at a later age. Does age affect the success of braces? The answer is complicated. While there is an ideal age for orthodontic work, most adults can successfully straighten their teeth.