Figure 1:

“Two-jaw distraction” for the correction of a transverse maxillary and mandibular deficiency (A) and corresponding skeletal class II malocclusion with increased overjet (B). Intraoperative situation after mounting two internal distraction devices to the upper and lower jaw. The desired amount of distraction is intraoperatively tested (C). Mandibulomaxillary expansion after the end of activation (D and E). The interdental gaps are closed by fixed orthodontic appliances during the consolidation phase (E and F). Complete bony consolidation in the symphyseal mandibular region at the time of device removal (G). Occlusal situation with physiologic overjet after additional orthognathic surgery 18 months after “two-jaw distraction” (H and I; orthodontic treatment by Dr. U. Jödecke, Fürstenwalde, Germany).