Evaluation of a Three-Stage Method for Improving Mandibular Retrognathia with Labially Inclined Incisors Using Genioplasty, Segmental Osteotomy, and Two-Jaw Surgery
Figure 2
Diagrams of problems encountered when improving the tooth axis in patients with a thin symphysis. (a) Orthodontic movement by employing root torque: the root may be exposed from the alveolar bone if the tooth is rotated sagittally (arrow). (b) Segmental alveolar osteotomy: the dentate segment may rotate and the basal stump at the horizontal osteotomy line will become free from bone contact (arrow). A bone gap will also be created at the vertical osteotomy line.
