When residual ridge atrophy of the edentulous mandible and maxilla is accompanied by a skeletal Class III jaw relationship, surgical correction is necessary for optimal functional, phonetic, and esthetic results whenever implant-supported prostheses are to be placed. A method is described in which a single procedure combines the endosseous placement of nonsubmerged titanium implants in appropriate prosthetically predetermined locations with defined advancement of the maxilla. Preoperative diagnostic examinations, cast simulation, and transfer of the latter to the site of surgery are of the utmost importance. Keywords: Class III edentulous patient, Le Fort I osteotomy, nonsubmerged implants, one-stage procedure, residual ridge atrophy