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Figure. Mean profilograms and cephalometric measurements in the pre-pubertal and adult open-bite groups. Solid lines represent mean profilograms of patients, and dotted lines indicate mean profilograms of Japanese normal females according to the corresponding age (Wada, 1977). PP-U6 means a distance between U6 (upper first molar) and PP (palatal plane), and PP-U1 indicates a distance between U1 (upper central incisor) and PP. Mp-L6 means a distance between L6 (lower first molar) and Mp (mandibular plane), and Mp-L1 indicates a distance between L1 (lower central incisor) and Mp. These profilograms were superimposed on the SN plane, registered at S. SNA angle means an angle of N-A to S-N, and SNB angle indicates an angle of N-B to S-N. The ANB angle means an angle of S-N to palatal plane. Occl pl angle means an angle of S-N to occlusal plane, and Mp-SN angle indicates an angle of S-N to mandibular plane.
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