Abstract

Some of the difficulties of achieving individual tooth to tooth relationships in finishing orthodontic cases can be associated with the appliances. In an attempt to overcome many of these difficulties, the Buccal Arch Positioner (BAP) has been theoretically proposed.

This Study adapted the theoretical BAP to clinical orthodontics to observe its acceptance by patients and operators and to observe changes in occlusion during treatment.

Three patients Were chosen and BAPs were constructed. The .072 in. rigid member was found to be adequate in strength and rigidity, however it produced some minor irritation of the vestibular tissues. A pilot study of force values was obtained during various spring deformations using 22 mm lengths of various wire sizes in the "S" shape. From this study the flexible members were chosen to produce forces within a physiologic range for an average patient.

Both patient and operator acceptance were better than expected. Beneficial changes observed were crossbite, incisor root tipping, midline and cuspid rotation corrections. Adverse changes observed were arch expansion and lower Cuspid roots tipped to a less favorable position.

The theoretical BAP was successfully adapted to clinical orthodontics as shown by patient and operator acceptance and by its ability to produce beneficial changes in occlusion.

LLU Discipline

Orthodontics

Department

Orthodontics and Dentofacial Orthopedics

School

Graduate School

First Advisor

Roland D. Walters

Second Advisor

John P. De Vincenzo

Third Advisor

Lloyd E. Downs

Fourth Advisor

John K. Pearson

Fifth Advisor

James R. Wise

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1973

Date (Title Page)

5-1973

Language

English

Library of Congress/MESH Subject Headings

Dental Instruments

Type

Thesis

Page Count

viii; 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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