A STUDY OF THE INFERIOR ALVEOLAR ARCH IN CHINESE MALE ADULTS WITH SPECIAL REFERENCE TO ITS GEOMETRICAL CONFIGURATION DEDUCED BY A POLYNOMIAL CURVILINEAR REGRESSION EQUATION
- VernacularTitle:中国人成年男性下颌牙槽弓的形态观测及其几何图形的数学显示公式
- Author:
Gang CHEN
- Publication Type:Journal Article
- Keywords:
Mandibular alveolar arch;
Internal arch;
External arch;
Pointed round;
Square round;
Arch/chord index beetwen two canines;
Computer aided geometrical representation、analysis and combination;
Eight equation of element one;
Definite integral','
- From:
Acta Anatomica Sinica
1954;0(02):-
- CountryChina
- Language:Chinese
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Abstract:
The results of morphological observations and measurements of 200 Chinese male adult mandibular alveolar arches are as follows: 1.The average measuremants of the mandibular arch depth and arch breadth are 4.62 cm and 5.03 cm respectively. 2.The shape of the arch can be either square or pointed depending upon whether the value of the arch/chord index is greater or smaller than 95. 3.There are four curved line equations for left-external,left internal,right- external and right-internal half arches computed from the plotted geometrical configuration.All errors are less than 0.001 cm,while the coefficients of co-relation are greater than 0.999.This proves that the result of this research work is success- ful. 4.The total area of the alveolar region of Chinese adult male mandibles is 12.15 cm~2 in average.
