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Predictive value of magnetic resonance imaging of disc displacement for temporomandibular disorder signs and symptoms in a pre-orthodontic adolescent patient population Open Access


Other title
Magnetic resonance imaging
Temporomandibular disorder signs and symptoms
Temporomandibular joint
Disc displacement
Type of item
Degree grantor
University of Alberta
Author or creator
Moldez, Marlon
Supervisor and department
Norman Thie (Dentistry)
Examining committee member and department
Sharon Warren (Dentistry)
Brian Nebbe (Dentistry)
Giseon Heo (Dentistry)
Paul Major (Dentistry)
Faculty of Medicine and Dentistry

Date accepted
Graduation date
Master of Science in Temporomandibular Disorders and Orofacial Pain
Degree level
The purpose of this retrospective study was to examine the predictive value of quantitative MRI disc displacement for changes of TMD signs and symptoms in a pre-orthodontic adolescent patient sample. The sample consisted of fifty-five adolescent patients who had baseline temporomandibular joint MRI and longitudinal clinical records of TMD signs and symptoms. Thirty-eight were females and seventeen were males. The mean age was 12.9 ±1.6 years (range 7.4-16.6). Our analysis revealed that MRI right disc displacement has significant association with changes of ipsilateral joint locking. However, predictive value of disc displacement for changes of joint locking could not be analyzed due to small sample size. Nevertheless, MRI right disc displacement can distinguish subjects with persistent ipsilateral clicking from those who were persistently free of clicking from T1 to T2. These findings indicate that clinical assessment of right joint clicking is consistent with MRI determination of disc displacement.
License granted by Marlon Moldez ( on 2009-08-27T13:15:40Z (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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