Three dimensional distraction osteogenesis of the midface: orthodontic considerations.

Three-dimensional Le Fort I DO can be used to selectively widen, lengthen, and vertically reposition the maxilla, without bone grafts and with a good adaptation of the surrounding soft tissues. Therefore DO is a complementary tool for conventional orthodontics and orthognathic surgical techniques that address maxillary deficiency. It is the technique of choice for patients who require significant maxillary repositioning and have significant soft tissue limitations, such as scarring secondary to previous surgical procedures. The procedure can be performed in children prior to reaching skeletal maturity and also in adult patients. Finally, three-dimensional maxillary reconstruction by distraction of the Le Fort I segment offers an improved aesthetic outcome and less risk of deterioration of speech in comparison with traditional orthognathic techniques.