**6. Reconstruction of the chin**

Hypoplasia of the chin or receded chin usually required bone grafting by sandwich technique by doing transverse osteotomy of the lower anterior border of the lower jaw. Bone graft was harvested from the iliac crest as horse shows cortical-cancellous bone graft inserted in between the two bones and fixed by rigid fixation with soft stainless steel wire of 0.25 mm or by plate, but some of these bone graft may show some degree of resorption. We prefer kidneyshaped silastic implant in three sizes, small, medium, and large, and the access for the silastic and bone graft is through submental incision [5].
