TI : A lateral cephalometric study of the size of tongue and intermaxillary space in korean
AU : Lee SR
AD : Department of Dental Radiology, College of Dentistry, Kyung Hee University
SO : JKAMFR. 1977;7(1):31-38
PY : 1977
LA : KOREAN
CP : KOREA
AB : A study was performed to investigate the size of tongue area and intermaxillary space area, and compare the sexual differences between normal Korean children and adults by introducing planimetric and linear analysis of the lateral cep halograms. The cephalograms were composed of 41 child male aged 10.8, 40 child female aged 10.5, 38 adult male aged 21.3 , and 40 adult female aged 20.8 respectively. In order to study and measure the intermaxillary space area, the following were selected, as reference items: occlusal plane, anterior intermaxillary space height, posterior intermaxillary space height, length of intermaxillary space.
Among those reference items anterior intermaxillary space height and posterior intermaxillary space height were perpend icular to the maxillary plane.
An index, (Anterior intermaxillary space height + posterior intermaxillary space height )/2 Length of intermaxi llary space, was introduced for the calculation of intermaxillary space area.
While the tongue area was plotted by outline of tongue shadow, above a line extending from the vall ecula to the most anterior point on the hyoid body, and above a line from the most anterior point of the hyoid body to the menton.
The obtained results were as follows:
1. In general, the measurements of male were larger than those of female in intermaxillary space area in childhood and adulthood group. but intermaxillary space area of childhood group showed no significant sexual difference, and that of a dulthood group showed significant sexual difference when evaluated statistically.
2. In both groups, the measurements of male were larger than those of female in tongue area, and there are also statist ical significance of sexual differences in both age groups.
3. Considerable growth changes between the childhood and adulthood groups were revealed in intermaxillary space area an d tongue area, and the tongue had tendency to become relatively smaller when compared with the intermaxillary space in both sexes.