Theoretically there is no age limit for wearing braces. Teenagers who wear braces around the age of 16 have the best results and take the shortest time to straighten their teeth. This is because during this time, the teenager’s bones are still continuing to develop and are more malleable, making it easy to straighten them by wearing braces. Although adults have missed the best treatment period, they can still straighten their teeth in this way. Adults’ teeth are already set, so the bones move very slowly under external forces. Therefore, adults need more patience and cooperation with the doctor to straighten their teeth.