Abstract

This study was conducted to clinically evaluate cuspid and anterior retraction in first bicuspid extraction cases using the Burstone segmented arch technique. More specifically interest was centered on rate of cuspid and anterior retraction, anchorage preservation or control, difficulty of appliance adjustments, time involved and frequency of adjustments, total retraction time, patient discomfort, root resorption, as well as a complete cephalometric appraisal. Six patients were treated for seven months with measurements and records taken to asses (sic) the above desired information.

The results of the patients undergoing lower cuspid retraction showed a mean percentage of 26.0% for the molars and 74.0% for the cuspids, of the total space closure. The effectiveness of the technique for en masse anterior retraction could not be evaluated on the present data. The study indicated the technique to be difficult and time consuming. Patients experienced moderate pain for several days, and no root resorption was evident. The cephalometric measurements showed little remarkable change.

LLU Discipline

Orthodontics

Department

Dentistry

School

Graduate School

First Advisor

Roland D. Walters

Second Advisor

John P. DeVincenzo

Third Advisor

Jack L. Tomlinson

Fourth Advisor

James R. Wise

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1972

Date (Title Page)

5-1972

Language

English

Library of Congress/MESH Subject Headings

Orthodontics; Dental Instruments Bicuspid

Type

Thesis

Page Count

vi; 32

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

Download

Share

COinS