Computerized imaging to provide the perspective of the third dimension is helpful for preoperative evaluation and has been introduced for a variety of indications. Calculated from original computerized tomographic scans, deformities in skeletal and soft tissue profiles can be visualized on a te levision monitor. A method of fabricating three-dimension skeletal models that can be used for planning orthognathic surgery has been developed. Mandibular and maxillary surgical movements can be simulated exactly, and osteosynthesis materials can be chosen, adapted, and prepared to save time intraoperatively.