Abstract
Advancement of the maxilla by Le Fort I osteotemy and closure of oro-nasal fistula by bone grafting of the alveolar cleft were simultaneously conducted in 10 patients with postoperative cleft lip and palate patients showing the disharmony of the upper and lower jaws and anterior closs bite. morever, in cases of marked disharmony of the upper and lower jaws mandibular retroplacement by the sagittal splitting technique of the ramus was performed, also in cases showing to the said region was carried out, and in caces using the tongue flap bone grafting to the anterior cleft of the hard palate was performed. This surgical technique not only prevents postoperative relapse, which is frequently observed after the Le Fort I osteotomy of cleft lip and palate, and makes reductoins in mental, time, and economic loads by a reduction in surgical frequency, but forms a good shaped alveolar ridge, resulting in easy prosthetic treatment for the alveolar cleft, and has many merits.
