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Racial differences in dimensional traits of the human face
The Angle Orthodontist
|October 1, 1980
Summary
Ethnic and racial group differences in facial morphology are minimal, with geographical factors showing a slight influence on specific facial measurements. Individual variation within groups often exceeds inter-group variation.
Area of Science:
- Anthropology
- Craniofacial Morphology
- Genetics
Background:
- Defining race is complex; ethnic groups with shared bonds offer a more precise classification.
- Quantifiable differences in craniofacial morphology among ethnic groups residing in similar geographic areas are generally small.
Purpose of the Study:
- To investigate geographical influences on craniofacial morphology.
- To analyze quantifiable differences in facial profiles across ethnic groups.
Main Methods:
- Analysis of quantifiable angular measurements of the somatic facial profile.
- Comparison of mean differences in craniofacial traits among ethnic groups.
Main Results:
- Geographical effects were observed on specific quantifiable angular measurements of the facial profile.
- Mean differences in craniofacial traits between ethnic groups are typically small, with significant overlap.
- Variations within ethnic groups often exceed variations among groups.
Conclusions:
- Cephalofacial morphology is influenced by genetics, function, and environment.
- While minor geographical effects exist, individual variation is substantial.
- Facial parameters near alveolar and dental areas exhibit the most significant differences among ethnic groups.