There is a change of the growth pattern and growth rate of human craniofacial bone with aging. The three dimensional growth of each bone is influenced by their growth center. By the same token, the gross morphology may change as the bony skeleton changes.
In this study, we studied the cephalometric films of young Korean male with age range from 7 to 16 years. And then, the data were compared to those from the adult group.
The results are as followings ;
1. We are presenting the data of the height, depth, width, and cephalometric angles of the craniofacial skeleton in each age.
2. The facial bony growth is slower than the cranial bone growth in each direction. The growth rate of the facial bone by depth, width, and height is faster than that of cranial bone with aging.
3. The horizontal growth of the mandible is slower than that of the maxilla and the cranium. 4. The proportional ratio of the upper face to lower one is constant regardless of the age. The ratio was 43 : 57.
5. The SNA and SNB angles are slightly increased with aging, but ANB angle is reduced with aging.
6. As the SN-MP and Pal-MP angles are reduced with aging, so as the opening of the mandibular plane to the cranial bone.
Although there is a increment of posterior mandibular height, the position of the mandibular symphysis is constant regardless of the age.
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