The American Association of Orthodontists recommends that all children have a check-up by an orthodontist by age 7, because there are some children that may benefit from early intervention. By this age, most children have a mix of baby (primary) and adult (permanent) teeth.
Orthodontists are trained to spot subtle problems with jaw growth and emerging teeth while some baby teeth are still present. The advantage for patients of early detection of orthodontic problems is that some problems may be easier to correct if they are found and treated early. Waiting until all the permanent teeth have come in, or until facial growth is nearly complete, may make correction of some problems more difficult. While your child’s teeth may appear straight to you, there could be a problem that only an orthodontist can detect. Of course, the check-up may reveal that your child’s bite is fine, and that is comforting news.