Fig. 1.
Parameters measurements from various anatomical landmarks to MF. 1. MF-AB: distance from the midpoint of the MF to the AB of the ramus on occlusion plane. 2. MF-PB: distance from the midpoint of the MF to the PB of the ramus on occlusion plane. 3. AB-PB: distance from the AB of the ramus on occlusion plane to the PB of ramus passing midpoint of the MF or the summation of MF-AB and MF-PB. 4. MF-MN: distance from the midpoint of the MF to the lowest point of the MN. 5. MF-IB: distance from the midpoint of the MF to the IB limited to the base of the mandible. 6. MN-IB: distance from the lowest point of the MN to the IB limited to the base of mandible passing midpoint of the MF or the summation of MF-MN and MF-IB. AB, anterior border; IB, inferior border; MF, mandibular foramen; MN, mandibular notch; PB, posterior border; ‾ ‾ ‾, occlusion plane; ●, midpoint of the MF.