Abstract

A random sampling of 54 Navajo Indians was examined and a selective group of 20 subjects presenting harmonious facial profiles and good occlusions were taken from this random sampling for specific comparison with Caucasian and other ethnic groups.

The methods used in this study are as follows: Plaster casts of Maxillary and Mandibular dental arches, profile photographs and lateral cephalometric X-rays. The cephalometric X-rays were traced in the standard manner on both Downs' and Riedel's analyses. The mean values for the Navajo group were compared with the mean values established for Caucasians by Downs and Riedel. The comparison was subjected to statistical analysis to determine the probability level of significant difference. The results obtained revealed there is no statistically significant difference, for the most part, between the skeletal patterns of the two groups, however, the difference between the dental patterns yielded an exceptionally high probability of significant difference. The Navajo group presented a marked degree of bi-maxillary protrusion.

Downs' analysis data were compared for six ethnic groups; Caucasian, Navajo, Negro, Japanese, Chinese, and Australian Aborigines. The results are as follows: The mean values for the skeletal pattern of the Navajos most closely approximated the values for Japanese, and the dental pattern more closely equates the Chinese and American Negro.

LLU Discipline

Orthodontics

Department

Dentistry

School

Graduate Studies

First Advisor

Thomas J. Zwemer

Second Advisor

Edward Kemler

Third Advisor

Gayle H. Nelson

Fourth Advisor

Paul H. Deeb

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1964

Date (Title Page)

5-1964

Language

English

Library of Congress/MESH Subject Headings

Cephalometry

Type

Thesis

Page Count

vi; 43

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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