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COMPARISON BETWEEN TOOTH MESIODISTAL ANGULATION MEASUREMENTS
FROM CONSTRUCTED PANORAMIC IMAGES AND THREE-DIMENSIONAL
VOLUMETRIC IMAGES
by
Nicole Sakai
A Thesis Presented to the
FACULTY OF THE USC GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF SCIENCE
(CRANIOFACIAL BIOLOGY)
May 2011
Copyright 2011 Nicole Sakai
Object Description
| Title | Comparison between tooth mesiodistal angulation measurements from constructed panoramic images and three-dimensional volumetric images |
| Author | Sakai, Nicole |
| Author email | nsakai@usc.edu; nicolesakaidds@gmail.com |
| Degree | Master of Science |
| Document type | Thesis |
| Degree program | Cranio-Facial Biology |
| School | School of Dentistry |
| Date defended/completed | 2011-03-10 |
| Date submitted | 2011 |
| Restricted until | Unrestricted |
| Date published | 2011-03-28 |
| Advisor (committee chair) | Paine, Michael |
| Advisor (committee member) |
Sameshima, Glenn Moon, Holly Enciso, Reyes |
| Abstract | The purpose of this study was to evaluate if there are differences between mesiodistal angulations measurements for all the teeth in constructed 2D panoramic images as compared to 3D measurements. Pre-treatment 3D DICOM data was obtained from the University of Southern California’s patient database and mesiodistal angulation measurements from the constructed 2D panoramic images were compared to 3D coordinate system measurements (gold standard). Thirty three cases were chosen based on the specified inclusion and exclusion criteria. Results indicated that there was a relative trend in the differences in the tooth mesiodistal angulation measurements between the 3D and 2D measurements (p<.007). The maxillary central incisors, canine, and first premolar showed significant differences in the measurements, while the lateral incisors, second premolars, and molars did not show significant differences. On the other hand, the mandibular incisors, canine, and premolars did not show significant differences in the tooth mesiodistal angulations, while the molars did show a significant difference in the measurements. From this study, it can be concluded that there are significant differences for some teeth between angulation measurements obtained from the 2D constructed panoramic images and those directly obtained from 3D measurements. |
| Keyword | dental; three-dimensional; mesiodistal angulation; panoramic radiographs; orthodontics |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m3704 |
| Rights | Sakai, Nicole |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Sakai-4390 |
| Archival file | uscthesesreloadpub_Volume51/etd-Sakai-4390.pdf |
Description
| Title | Page 1 |
| Full text | COMPARISON BETWEEN TOOTH MESIODISTAL ANGULATION MEASUREMENTS FROM CONSTRUCTED PANORAMIC IMAGES AND THREE-DIMENSIONAL VOLUMETRIC IMAGES by Nicole Sakai A Thesis Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (CRANIOFACIAL BIOLOGY) May 2011 Copyright 2011 Nicole Sakai |
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