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Cephalometric standards for American Negro children.

T L Alexander, H P Hitchcock

    American Journal of Orthodontics
    |September 1, 1978
    PubMed
    Summary
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    Skeletal measurements in Black individuals, particularly the Alabama Negro, are generally larger than in Caucasians, with notable differences in jaw and incisor positioning. Malocclusion frequencies also differ between these populations.

    Area of Science:

    • Anthropology
    • Orthodontics
    • Craniometry

    Background:

    • Previous craniometric studies have provided baseline data for skeletal measurements.
    • Understanding population-specific skeletal morphology is crucial for accurate diagnosis and treatment planning in orthodontics.

    Purpose of the Study:

    • To compare skeletal and dental measurements between Black (Alabama Negro) and Caucasian populations.
    • To identify specific differences in craniofacial morphology and malocclusion prevalence.

    Main Methods:

    • Analysis of skeletal and dental measurements.
    • Comparison of means and standard deviations between racial groups.

    Main Results:

    • Most skeletal measurements were greater in the Alabama Negro group compared to Caucasians.

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  • The maxilla was proportionately more anteriorly placed, and incisors were more procumbent and protrusive in Negroes.
  • Angle's Class II and Class III malocclusions were less frequent in the Black population than in the White population.

    • Conclusions:

    • Significant differences exist in craniofacial skeletal measurements and dental prognathism between Black and White populations.
    • These findings have implications for orthodontic diagnosis and treatment tailored to different racial groups.