Abstract
This paper describes the grafting of mandibular ramus lateral cortex bone to osteotomy gaps of the anterior wall of the maxillary sinus in a patient who underwent high Le Fort I osteotomy for inferior positioning of the maxilla. The maxilla was rigidly fixed with the use of a bone plate, bone screw, and cortex bone in the thick bone of the piliform rim and the zygomatic body. Bone grafts from the lateral cortex of the mandibular ramus had several advantages. It was possible to obtain sufficient bone for maxillary lengthening.There was good incorporation of all grafts. The incision and resulting scar were hidden intraorally.