Comparison of mandibular growth with other variables during puberty
The purpose of this investigation was to compare growth characteristics of the mandible during puberty with growth characteristics of the hyoid bone, cervical vertebrae, hand bones and standing height. Data were compiled from serial lateral cephalometric roentgenograms, hand-wrist roentgenograms and body height records of 33 Japanese girls between 9 and 14 years old. Records were updated annually. The mandibular growth rate differed from the other growth rates. The timing of maximum growth velocity of the mandible varied more widely than the timing of maximum growth velocity of the other parameters measured, and the total amount of mandibular growth did not correlate to any other measurement. The timing and magnitude of circumpubertal growth acceleration of various components of the body vary within a certain range of difference. However, the amount and timing of mandibular growth seems to be more variable than the other areas studied.Abstract
Contributor Notes
H. Mitani is Professor and Chairman of the Department of Orthodontics at the School of Dentistry, Tohoku University in Sendai, Japan. He hold a DDS degree from Osaka Dental University, an MS degree in orthodontics from the University of Illinois, Chicago, and a DDSc degree from Tokyo Medical and Dental University
K. Sato is Instructor of Orthodontics at the Tohoku University. He is a dental graduate of the Tohoku University and holds a DDSc degree from Tohoku University