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 ?
Dental arch = upper front transverse diameter + upper posterior transverse diameter + lower front transverse diameter + lower posterior transverse diameter facial + facial index.
All of the parameters of this model were significant at a 5% level, except for the parameter of facial index with masticatory force.
2 shows the estimates of all the model's significant parameters (except the parameter of facial index with masticatory force).
Such proportional differences did not influence only the total facial index.
Distribution of the treated entities based on the total facial index values is shown in Table V.
Using the upper facial index, the skulls were classified as hypereuryene, euryene, mesene, leptene, and hyperleptene.
Of the 71 skulls used, it was not possible to determine the volume of the left fossa in one; in another, upper facial index cannot be determined.