Abstract

Two rapid palatal expansion appliances, acrylic-free and acrylic-reinforced, were compared for their effect on the cross-sectional area of the palate. Two groups, twenty-five patients in each, were selected so that they would match as closely as possible with regards to age and sex distribution. The pre-treatment and post-treatment maxillary models were duplicated, and this duplicate model was then trimmed in a specific manner to allow the cross-sectional area between the first permanent molars to be compared. The results indicate that there is no difference, at the five percent level of significance, between these two appliances. It is concluded that the acrylic-reinforced appliance does not give greater expansion of the palatal vault than the acrylic-free appliance.

LLU Discipline

Orthodontics

Department

Dentistry

School

Graduate School

First Advisor

Alden B. Chase

Second Advisor

Logan W. Barnard

Third Advisor

Lawrence E. McEwen

Fourth Advisor

Arthur J. Morgan

Fifth Advisor

John K. Pearson

Sixth Advisor

Guy D. Taylor

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1982

Date (Title Page)

6-1982

Language

English

Library of Congress/MESH Subject Headings

Orthodontic Appliances; Palatal Expansion Technique

Type

Thesis

Page Count

iii; 26

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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