Facial Index


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facial index

[′fā·shəl ′in‚deks]
(anthropology)
The ratio of the breadth of the face to its length multiplied by 100.

Facial Index

 

one of the anthropological characteristics used in anthropometry—the ratio of the height of the upper face, that is, without the lower jaw (1), or of the entire skull, with the lower jaw (2), to the bizygomatic expressed in percent. The following landmarks exist on the skull for index (1): euryene (up to 49.9), mesene (50.0–54.9), and leptene (55.0 or more). The landmarks for index (2) are euryprosopia (up to 84.9), mesoprosopia (85.0–89.9), and leptoprosopia (90.00 or more). On living persons the second index is used with the following landmarks: euryprosopia (up to 84.0), mesoprosopia (84.0–87.9), and leptoprosopia (88.0 or more). The facial index varies in different groups of population; it is taken into account in anthropology when distinguishing racial types.

References in periodicals archive ?
Caption: Figure 5: Regression curve of the facial index and Zy.r-Tr-Zy.l angle correlation.
(2011) studied sexual dimorphism bearing on facial indexes among people of Niger.
Length height index, nasal index and facial index showed a significant increase in value among the speech and hearing impaired children than in control group.
The proportional relationship of facial height to width (the facial index, Figure 15, colour plate II), more than the absolute value of either, establish overall facial type and the basic proportions of the face.
As compared to the Caucasians, Hyderabad population has a decreased facial Index. Females showed slightly larger lower face than males.
The mean facial index of Malay population has been identified.
Dental arch = upper front transverse diameter + upper posterior transverse diameter + lower front transverse diameter + lower posterior transverse diameter facial + facial index.
In this study, the facial index showed that Chakma females were hypereuryprosopic (very broad face) followed by euryprosopic (broad face) which is in accordance with Bhasin [28] who described Mongoloids as a very broad or euryprosopic face to medium broad or mesoprosopic face.
The mean facial length, facial width and facial index were 11.53 [+ or -] 0.08 cm, 9.30 [+ or -] 0.015 cm and 80.67 [+ or -] 0.44 cm, respectively.