Angular Craniometric Analysis of Anthropometric Variation in the Anioma Facial Angle
EnaohwoTaniyohwo Mamerhi
Department of Human Anatomy and Cell Biology, Faculty of Basic Medical Sciences, College of Health Sciences. Delta State University, Abraka, Nigeria.
Okoro Ogheneyebrorue Godswill *
Department of Human Anatomy, Faculty of Basic Medical Sciences, University of Delta, Agbor, Nigeria.
Igben Onoriode Vincent-Junior
Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria.
Egwunyenga Michael Oge
Department of Human Anatomy and Cell Biology, Faculty of Basic Medical Sciences, College of Health Sciences. Delta State University, Abraka, Nigeria.
Owhefere Great Owhefere
Department of Human Anatomy, Faculty of Basic Medical Sciences, Southern Delta University, Ozoro, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Background: The facial angle, originally introduced by Petrus Camper as a descriptive index in comparative anatomy and art, was historically misappropriated by early evolutionists and anthropologists as a pseudo-scientific tool for racial classification and intellectual stratification. This misuse obscured the true anatomical and clinical value of craniofacial measurements, which, when objectively analyzed, provide important insights into facial growth patterns, congenital anomalies, orthodontic alignment, and reconstructive planning. In contemporary practice, facial angle analysis has evolved beyond its historical bias to become a vital parameter in forensic identification, aesthetic surgery, and anthropometric standardization across populations.
Aim and Objectives: To determine variation in obtained mean facial angle of a study population of adult Anioma subjects, as a basis for racial comparison with reference values of Campers angle established for other ethnic and racial groups.
Materials and Methods:The standard protocol of the craniofacial technique for angular photogrammetric analysis of standard cephalofacial images was adopted for this evaluation of 1000 Anioma subjects, in the age range of eighteen to sixty years. The facial angles of study subjects were documented, calculated for gender-specific mean values, and analyzed for statistically significant gender differences as well as related descriptive and inferential statistics as well as the independent sample t-test to test for sex difference was done with the aid of the Statistical Package for Social Sciences.
Result: A difference in arithmetic value of 0.51ºwas obtained in mean facial angles among sampled Anioma subjects, 99.49º±5.70 (males: 100.22º±5.08; females: 98.75º±6.31),vis-à-vis the slightly larger reference value quoted by Campers for European subjects (100º).This difference in mean facial angle, which was gender-dimorphic, can only be accepted as a basis for racial and intellectual hierarchical classification if anthropology, anthropometry and photogrammetric analysis constitute the core of pseudo-science.
Conclusion: The gender specific nature of obtained facial angle, and its relationship with ethnicity, as presented herein, is of critical anthropometric relevance to medical end users of such craniometric data as the maxillofacial surgeon, reconstructive cosmetologist and forensic anthropologists.
Keywords: Anthropometry, craniometric analysis, Anioma, facial angle