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Gössi, D B; Gallo, L M; Bahr, E; Palla, S (2004). Dynamic intra-articular space variation in clicking TMJs. Journal of Dental Research, 83(6):480-484.

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During mandibular movement, the geometric relationships of the articular surfaces in the temporomandibular joint (TMJ) change, so that the disc undergoes different stress concentrations with respect to time and position. In this study, we compared the intra-articular space variations of 13 clicking and 15 asymptomatic TMJs for jaw opening/closing. Magnetic resonance imaging and jaw tracking were combined to display the motion of the whole condyle within the fossa. In clicking TMJs, the mediolateral spread s of the stress-field trajectories was 2.4 +/- 1.0 mm (s(max) = 4.9 +/- 2.1 mm) with an aspect ratio a/h of 2.5 +/- 1.6, both significantly greater than in controls (p < 0.05). The stress-field trajectories of the controls coincided during opening/closing (s = 0.9 +/- 0.2 mm, s(max) = 1.8 +/- 0.8 mm, a/h = 1.6 +/- 0.3). Clicking TMJs showed much less coincident stress-field paths and much "flatter" stress-fields than controls during jaw opening/closing.


13 citations in Web of Science®
18 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > Center for Dental Medicine > Clinic for Masticatory Disorders and Complete Dentures, Geriatric and Special Care Dentistry
Dewey Decimal Classification:610 Medicine & health
Date:1 June 2004
Deposited On:11 Feb 2008 12:23
Last Modified:28 Nov 2013 02:03
Publisher:Sage Publications
Publisher DOI:10.1177/154405910408300609
Related URLs:http://jdr.iadrjournals.org/cgi/content/abstract/83/6/480
PubMed ID:15153456

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