. (A) Advancement of the inferior border of the mandible to increase chin projection. (B) Implant used to augment the anterior portion of the chin, eliminating the need for osteotomy in this area. (C) Clinical image demonstrating chin deficiency. (D) Postoperative image after advancement of the inferior portion of the anterior mandible. (E) Preoperative radiograph. (F) Postoperative radiograph.