Abstract

Recent studies have shown that forces applied to the mandible during functional appliance and other orthodontic therapies produce measurable changes in the TMJ. It was postulated that specific malocclusions might also apply forces that could produce specific changes in the horizontal morphology of the TMJ. This study involved 104 pretreatment orthodontic patients, 44 males and 60 females. A submento-vertex analysis was performed and correlated with clinical findings including age, sex, malocclusion type, facial type, TMJ symptoms, tooth eruption sequence, crossbites and midline discrepancies. All possible correlations between the radiographic findings and the clinical malocclusions were tested with ANOVA. The width of the condylar head correlated positively with the patients age (p < 0.01) and sex (p < 0.001). The presence or absence of a midline discrepency (sic) correlated significantly (p < 0.05) with growth changes in the condylar width. TMJ symptoms were few and did not correlate significantly with any radiographic measurement. Further investigation is needed to study possible correlations between the axial findings, saggiatal findings, and clinical findings to elucidate the three dimensional development of the TMJ and possible relationships to the development of occlusion.

LLU Discipline

Orthodontics

Department

Dentistry

School

Graduate School

First Advisor

Christer Engstrom

Second Advisor

Helene Engstrom

Third Advisor

J. Milford Anholm

Fourth Advisor

John Pearson

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1986

Date (Title Page)

6-1986

Language

English

Library of Congress/MESH Subject Headings

Malocclusion; Temporomandibular Joint

Type

Thesis

Page Count

ii; 25

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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