Fig. 3. The step-by-step procedure of virtual surgical simulation. Step 1, Correction of the anterior midline of the maxilla. Step 2, Correction of the posterior midline of the maxilla. Step 3, Correction of the vertical asymmetry (canting) of the maxilla. Step 4, Correction of the vertical discrepancy of the maxilla. Step 5, Correction of the maxillary occlusal plane in the sagittal plane. Step 6, Correction of the sagittal discrepancy of the maxilla. Step 7, Correction of the mandible.
