Abstract

Expansion of the maxillae is a well recognized procedure in orthodontics. Little is known about Mandibular Expansion. This project is a pure research of the possibility of expanding the mandible laterally at the symphysis on a baboon.

The symphysis was cut A-P and expanded laterally 11 mm, then held and stabilized with a titanium mesh work screwed to the inferior border of the mandible. The defect area was filled with a bone graft of marrow and cancellous bone fragments taken from the greater trochanter and the crest of the ilium. New bone did fill in the defect and the expansion was stable over a four-month period prior to sacrificing the animal.

Three tetracycline injections were given to mark the new bone and observe any functional adaptations which may have taken place on the mandible or in the temporomandibular joint. The tetracycline has a fluorescence quality which can be observed under ultra-violet light. The mandible was viewed grossly and microscopically under ultra-violet light and new bone markings were observed. Alterations in the T.M.J. with bone deposition and resorption due to the changed position were noted.

LLU Discipline

Orthodontics

Department

Dentistry

School

Graduate School

First Advisor

Roland D. Walters

Second Advisor

Logan W. Barnard

Third Advisor

Phillip J. Boyne

Fourth Advisor

Gary G. Morikone

Fifth Advisor

Guy D. Taylor

Degree Name

Master of Science (MS)

Degree Level

M.A.

Year Degree Awarded

1980

Date (Title Page)

6-1980

Language

English

Library of Congress/MESH Subject Headings

Orthodontics, Corrective; Mandible

Type

Thesis

Page Count

vi; 39

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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