Related Experiment Videos
Occlusal variation in Australian aboriginals
R S Corruccini1, G C Townsend, T Brown
1Department of Anthropology, Southern Illinois University, Carbondale 62901-4502.
American Journal of Physical Anthropology
|July 1, 1990
Summary
Dental occlusion variations were studied in Australian Aboriginal groups, revealing slight differences between nomadic and settled populations. These subtle changes in tooth alignment may be influenced by diet and lifestyle factors.
Area of Science:
- Anthropological dentistry
- Human evolution
- Dental morphology
Background:
- Dental occlusion norms are often linked to modernized lifestyles.
- Investigating occlusal variations in indigenous populations provides insights into environmental and genetic influences.
Purpose of the Study:
- To compare dental occlusion traits between older (nomadic) and younger (settled) Australian Aboriginals.
- To assess the impact of lifestyle changes on dental morphology in this population.
Main Methods:
- Sampled 48 Australian Aboriginal individuals, divided into older (nomadic) and younger (settled) groups.
- Analyzed incisor relation traits, tooth malalignment, and relative arch breadth.
Main Results:
- Significant differences were observed in incisor relations, tooth malalignment, and arch breadth.
- These occlusal variations were less pronounced than in other studies of westernized populations.
Conclusions:
- Lifestyle changes in Australian Aboriginals show subtle effects on dental occlusion.
- Further research is needed to explore factors like diet, genetics, and fluoride exposure influencing these findings.