Severely atrophic edentulous mandible treated with anterior iliac crest bone grafting. (A) Initial clinical image of severely atrophic mandible. (B) Lateral cephalometric radiograph. (C) Panorex showing extreme atrophy of entire mandible. (D) Extraoral approach for bone grafting. (E) Exposure of anterior mandible. (F) Autogenous bone harvested from the iliac crest. The graft includes a corticocancellous block as well as additional marrow. (G) Grafts in place.