The bones of an adult, unlike those of a child, are no longer growing. Because of this, treatment can be slower and take longer to accomplish. The end results, however, are usually well worth the wait.
The bone support for an adult’s teeth is firmer than that of a growing child and is naturally more resistant to tooth movement. Though this is a hindrance, it isn’t a deterrent. As long as the teeth, the gums, and the underlying bone are healthy, teeth can be straightened at any age.