Hajime Suya

Abstract

Much research has been done to determine closure forces of patients. This study was designed to determine the effect of certain variables on the maximum protrusive force of patients.

Custom mandibular clutches were fabricated out of blue tray resin for each patient. A clutch adaptor was fastened to the clutch to secure the weight testing apparatus. Maximum protrusive forces were recorded for each patient when the force paralleled the Frankfurt line and the angle of the eminence. This testing was accomplished with and without the use of a maxillary clutch, designed to allow the closure muscles to brace the mandibular guide pin against the maxillary guiding plane.

All thirteen subjects tested could apply significantly more bilateral protrusive force when the angle of the eminence was paralleled and a maxillary clutch utilized. The range of bilateral maximum force for the thirteen patients was about 20-60 pounds.

Department

Dentistry

School

Graduate School

First Advisor

Lloyd Baum

Second Advisor

William R. Rothgeb

Third Advisor

John L. Tomlinson

Fourth Advisor

James R. Wise

Fifth Advisor

Virgil M. Lau

Sixth Advisor

Edwin F. Shryock

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1972

Date (Title Page)

5-1972

Language

English

Subject - Local

Masticatory Muscles

Type

Thesis

Page Count

vii; 43

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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