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Maxillary molar occlusal polygons in five human samples.

D H Morris

    American Journal of Physical Anthropology
    |July 1, 1986
    PubMed
    Summary
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    Maxillary first molar measurements reveal significant variations, particularly in width, between San (Bushmen) and Papago Indian populations. These dental metrics help distinguish between different ethnic groups.

    Area of Science:

    • Anthropology
    • Odontology
    • Human Variation

    Background:

    • Dental morphology provides insights into human population genetics and evolutionary history.
    • Maxillary first molars are key indicators of occlusal patterns and variations across diverse ethnic groups.

    Purpose of the Study:

    • To compare angular and linear measurements of maxillary first molar occlusal polygons across various populations.
    • To identify distinct dental characteristics of San (Bushmen), Sotho, Asiatic Indians, Whites, and Papago Indians.

    Main Methods:

    • Collection and analysis of angular and linear measurements of maxillary first molar occlusal polygons.
    • Comparative statistical analysis of dental measurements between specified ethnic groups.

    Main Results:

    Related Experiment Videos

    • Significant variations in molar widths were observed compared to lengths.
    • Maximum variation in occlusal polygon measurements was found between San and Papago Indian groups.
    • Papago maxillary first molars exhibited distinct characteristics, separable from Old World samples in specific angular and index measurements.

    Conclusions:

    • Maxillary first molar occlusal polygon measurements are valuable for differentiating human populations.
    • The study highlights significant dental metric differences between San and Papago Indians, suggesting distinct population histories.
    • Papago dental morphology shows unique traits compared to Old World populations.