Epidemiologic Studies of Occlusion

IV. The Prevalence of Malocclusion in a Population of 1,455 School Children

¹ Department of Health, Education, and Welfare, United States Public Health Service, National Institutes of Health, National Institute of Dental Research, Epidemiology and Biometry Branch, Bethesda, Maryland

The prevalence of malocclusion was assessed by the Angle-Dewey method for 1,455 school children in Suitland, Md. Results indicated no significant differences between the sexes for the three basic relationships of the mandible to the maxilla.

Significant differences were noted in the male for the prevalence of severe anterior overbite and Dewey Type I malocclusion. Anterior open bite was observed to occur more frequently in the female. These differences will be more critically evaluated when the results from the long-term survey are completed.

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