Abstract
Clinical diagnosis of dentofacial midline asymmetries has been difficult because of the problems in locating a reliable median sagittal reference plane, and because of the complexity and time involved in analysis. For these reasons, the clinician has generally resorted to direct visual observation in diagnosing midline discrepancies. A quick, precise, chairside method of dentofacial midline analysis would be of benefit to the orthodontist.
This study presented a clinical photographic method of dentofacial midline analysis and compared its precision with that of direct observation. The photographic method employed an Orthoscan Polaroid intraoral camera (Unitek) with a positioning device used to relate the facial midline to the maxillary arch photograph. Orthodontic patients with midline discrepancies were assessed by both methods.
The study indicated that photo analysis had minimal advantage over direct observation in the diagnosis of midline asymmetries. Lack of precision seemed to be due to the inherent difficulties in establishing a true facial midplane. The minimal advantage, coupled with the additional time and expense involved, make the clinical practicality of photo analysis questionable.
LLU Discipline
Orthodontics
Department
Dentistry
School
Graduate School
First Advisor
Roland D. Walters
Second Advisor
Alden B. Chase
Third Advisor
John P. DeVincenzo
Fourth Advisor
Jack L. Tomlinson
Fifth Advisor
John K. Pearson
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
Orthodontics; Photography
Type
Thesis
Page Count
vi; 38
Digital Format
Digital Publisher
Loma Linda University Libraries
Copyright
Author
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.
Recommended Citation
Okmin, Larry A., "Clinical Photographic Analysis of Dentofacial Midline Asymmetries" (1973). Loma Linda University Electronic Theses, Dissertations & Projects. 2130.
https://scholarsrepository.llu.edu/etd/2130
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