RACIAL VARIATION OF CEPHALOMETRIC MEASUREMENTS IN HAWAII

  • 1 January 1982
    • journal article
    • research article
    • Vol. 2  (2) , 99-106
Abstract
To establish the race-specific norms and investigate the underlying etiological basis of racial differences in malocclusion, cephalometric measurements of Steiner were analyzed for 5 major racial groups in Hawaii: Caucasians, Japanese, Chinese, Filipinos and Hawaiians. Subjects consisted for 210 healthy and orthodontically normal individuals of both sexes .gtoreq. 15 yr old. Analysis of age- and sex-adjusted cephalometric values showed that bone-to-bone relationships are largely comparable among races with an exception of GoGn/SN. Significant racial differences are in incisal inclinations in relation to the maxilla, the mandible or the opposite incisors, with the least inclination for Caucasians and the greatest for Chinese. The result is general tendency of bimaxillary protrusion of non-Caucasians. No significant differences were detected in arch lengths of both jaws among these groups. The higher prevalence of mesiocclusion in non-Caucasians, especially Orientals, possibly is due to an imbalance of tooth dimension to the alveolar bone.

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