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Permanent link (DOI): https://doi.org/10.7939/R3GC9D

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Tooth length measurement accuracy and reliability with cone-beam CT and panoramic radiography Open Access

Descriptions

Other title
Subject/Keyword
panoramic
reliability
tooth
panorex
computed
length
radiography
CBCT
accuracy
measurement
cone-beam
tomography
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Rosenblatt, Mark
Supervisor and department
Flores-Mir, Carlos (Dentistry)
Examining committee member and department
Boulanger, Pierre (Computing Science)
Carey, Jason (Mechanical Engineering)
Major, Paul (Dentistry)
Heo, Giseon (Dentistry)
Department
Specialization

Date accepted
2010-01-08T21:14:06Z
Graduation date
2010-06
Degree
Master of Science
Degree level
Master's
Abstract
This study assessed the accuracy and reliability of tooth length measurements through axial, coronal and sagittal serial slices of CBCT volumes; conventional panoramic radiographs; and CBCT panoramic reconstructions to that of a digital caliper gold standard. Samples consisted of maxillary premolars collected from patients requiring extractions for routine orthodontic treatment. Extracted teeth were measured directly with digital calipers and images were digitally measured in Dolphin 3D software. Analysis of CBCT serial slices resulted in highly accurate and reliable tooth length measurements for all slice orientations compared to the gold standard. Conventional panoramic radiographs were relatively inaccurate, overestimating tooth lengths by 29%, while CBCT panoramic reconstructions underestimated lengths by 4%. CBCT serial slice volume analysis provides clinicians with greater measurement confidence, while panoramic radiographs, produced either by conventional means or reconstructed from 3-D volumes should be considered less accurate and reliable for the detection of mild root resorption.
Language
English
DOI
doi:10.7939/R3GC9D
Rights
License granted by Mark Rosenblatt (markrosenblatt@ualberta.ca) on 2010-01-08T17:01:45Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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