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Mineral metabolism and microstructural defects in primate teeth.
American Journal of Physical Anthropology
|July 1, 1975
Summary
Primate teeth exhibit variations in enamel and dentin mineralization, influenced by diet and health. Human populations show significant diversity in dental microstructure, suggesting differing calcification properties.
Area of Science:
- Paleoanthropology
- Dental Anthropology
- Primate Anatomy
Background:
- Primate teeth display structural defects from variable calcification during growth.
- Hypomineralization in enamel (Striae of Retzius, Hunter-Schreger bands) and dentin (Incremental Lines of von Ebner, Contour Lines of Owen) are common.
- Inter-globular dentin represents a failure to calcify in dentin.
Purpose of the Study:
- To investigate variations in primate dental microstructure.
- To compare hypomineralization levels across different primate species and prehistoric human populations.
- To explore potential correlations between diet, health, and dental microstructural quality.
Main Methods:
- Analysis of dental microstructural quality in various primate species.
- Comparative study of hypomineralization in extant and prehistoric primates, including humans.
- Examination of dietary calcifying properties and general health indicators.
Main Results:
- Significant variation in dental microstructural quality exists across primate species.
- Free-ranging cercopithecoids exhibit the least hypomineralization; humans show the most.
- Pongids display characteristics closer to humans than cercopithecoids.
- Prehistoric human populations demonstrate considerable diversity in dental microstructure.
Conclusions:
- Dental hypomineralization is influenced by growth tempo, diet, health, and disease.
- Dietary calcifying properties and overall health likely explain variations in prehistoric human dental microstructure.
- Further research is needed to fully elucidate the factors contributing to primate dental variations.