Management of Severe Midface Retrusion With Distraction Osteogenesis in Patients With Cleft Lip and Alveolus.

A cleft lip, palate, and alveolus is one of the most common birth defects. Depending on the type of cleft, multiple surgeries may be required throughout the growth stage. Traditionally, an orthodontic-surgical approach has been adopted to treat maxillary retrusion.