Temporomandibular Joints in Asymptomatic and Symptomatic Nonpatient Volunteers : A Prospective 15-Year Follow-Up Clinical and MR Imaging Study

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Temporomandibular Joints in Asymptomatic and Symptomatic Nonpatient Volunteers : A Prospective 15-Year Follow-Up Clinical and MR Imaging Study

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Publication Article, peer reviewed scientific
Title Temporomandibular Joints in Asymptomatic and Symptomatic Nonpatient Volunteers : A Prospective 15-Year Follow-Up Clinical and MR Imaging Study
Author(s) Salé, Hanna ; Bryndahl, Fredrik ; Isberg, Annika
Date 2013
English abstract
Purpose: To determine the incidence, prevalence, and progression of temporomandibular joint (TMJ) magnetic resonance (MR) imaging findings and symptoms during 15 years in adult asymptomatic and symptomatic volunteers (nonpatients). Materials and Methods: A regional committee for medical research ethics approved the study, and informed volunteer consent was obtained. Fifty-three volunteers were examined at study inception. For clinical assessment, a self-administered questionnaire was given, followed by an interview with each volunteer at study inception, at 1 year later, and at 15 years later. Bilateral TMJ MR imaging and clinical examination were performed at inception and at 15-year follow-up. The MR images were assessed for disk position, bone status, and joint fluid. All 53 volunteers participated at 1-year follow-up, and 50 of 53 volunteers participated at 15-year follow-up; of these 50 volunteers, 47 underwent MR imaging. The Fisher exact test was used to determine differences between groups, and the Wilcoxon signed-rank test was used to determine differences in prevalence of TMJ symptoms among the three examination times. Results: At study inception, TMJ disk displacement was observed in 31% of asymptomatic volunteers (nine of 29) compared with 89% of symptomatic volunteers (16 of 18, P < .001). Inceptive TMJ status was maintained after 15 years in 91% (43 of 47). Unilateral progression was observed in four volunteers (9%); one was symptomatic and three were asymptomatic. Progression involved development of new disk displacement (n = 1), development of new bone changes (n = 2), and aggravation from reducing to non-reducing disk displacement (n = 1). Prevalence of TMJ symptoms did not change significantly between examination times (P = .77). TMJ clicking was the most common clinical symptom. Conclusion: Volunteers with mild symptoms had a prevalence of disk displacement of the same magnitude as that reported in patients, although most volunteers, symptomatic as well as asymptomatic, maintained their TMJ status during 15 years. (C)RSNA, 2012
DOI http://dx.doi.org/10.1148/radiol.12112243 (link to publisher's fulltext)
Publisher Radiological Society of North America
Host/Issue Radiology;1
Volume 267
ISSN 0033-8419
Pages 183-194
Language eng (iso)
Subject(s) radiology
nuclear medicine
medical imaging
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/17847 (link to this page)

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