From six heights and two widths of the zone of the mouth, the Formula of the Zone of the Mouth was originated, of which the following eight quantitative measurements were compiled;) Height of the zone of the mouth: the direct distance from the gnathion to the subnasale.
2) Height of all the lips: the direct distance from the mentolabial sulcus to the subnasale.
3) Height of the mucous membrane of the mouth: the direct distance from the labrale inferius to the labrale superius.
4) Height of all the upper lips: the direct distance from the stomion to the subnasale.
5) Height of all the lower lips: the direct distance from the mentolabial sulcus to the stomion.
6) Height of the lower face: the direct distance from the gnathion to the stomion.
7) Width of the aperture of the mouth: The direct distance between the right and left sides of the cheilion.
8) Width of the submaxillary angle: the direct direct distance between the right and left sides of the gonion.
From the above eight quantitative measurements, the following eight indices were derived:
i) Lip-index I (=height of all the lips. 100/height of the zone of the mouth).
ii) Lip-index II (=height of all the upper lips. 100/height of the zone of the mouth).
iii) Lip-index III (=height of all the lower lips. 100/height of the zone of the mouth).
iv) Lip-height index A (=height of all the upper lips. 100/height of all the lips).
v) Lip-height index B (=height of all the lower lips. 100/height of all the lips).
vi) Lip-height index C (=height of all the lower lips. 100/height of all the upper lips).
vii) Index of the mucous membrane of the mouth (=height of the mucous membrane of the mouth. 100/width of the aperture of the mouth).
viii) Index of the lower face (=height of the lower face. 100/width of the submaxillary angle).
These indices were sought from the anthropological ages of many instances of men and women, and centered around their respective arithmetical averages, these indices were classified into six types taking into consideration standard variations and other factors.
These types were symbolized simply from one to six, and by using the letters“MS”for the index in vii) above and the letters“UG”for the index in viii) above, the numerical formula which was produced by charting the indices parallely in the order of I II III A B C MS UG was named the Formula of the Zone of the Mouth.
抄録全体を表示