Orthodontic treatment can be started at any age. The American Association of Orthodontists recommends that children receive an orthodontic check-up no later than age 7. As most children have a mix of adult and baby teeth at this time, orthodontist can spot subtle problems with jaw growth and emerging teeth. That’s important, because early orthodontic interception may prevent more serious problems from developing, or make treatment at a later age shorter and less complicated.