Abstract

Pre-operative (T-1) and post-operative (T-3) radiographs were obtained and traced for fifty-one non-growing patients who had undergone isolated Le Fort I osteotomies. These tracings were then digitized with the results arranged in a data file and subjected to statistical analysis. The purpose of this study was to establish ratios for certain hard to soft tissue movements that could be used to aid the clinician in post-surgical soft tissue profile prediction. The results showed that even though a large sample was used, individual patient variability remained high particularly in the horizontal directions. Most ratios found in this study were consistent with other similar studies. All movement ratios in the vertical direction were highly significant (p = < 0.001). Only the ratio of subnasale (Sn) to columella (Cm) showed consistent significance in the horizontal direction (p = < 0.001).

LLU Discipline

Orthodontics

Department

Dentistry

School

Graduate School

First Advisor

Joseph M. Caruso

Second Advisor

William J. Emmerson

Third Advisor

M. Toufic Jeiroudi

Fourth Advisor

Timothy B. Welch

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1992

Date (Title Page)

6-1992

Language

English

Library of Congress/MESH Subject Headings

Surgery, Oral; Esthetics, Dental; Osteotomy -- methods; Forecasting

Type

Thesis

Page Count

1 iv; 37

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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