Document Detail

Hypermobility and trauma as etiologic factors in patients with disc derangements of the temporomandibular joint.
MedLine Citation:
PMID:  22658266     Owner:  NLM     Status:  Publisher    
The aim of the study was to investigate patients with temporomandibular joint (TMJ) disc derangement with its two clinical variants reciprocal clicking (RC) and chronic closed lock (CCL) with regard to the etiologic factors, previous jaw trauma and general (GJH) and local joint hypermobility (LJH). 42 patients (21 with RC and 21 with CCL) and 20 control individuals were studied. The patients and controls were asked whether they had sustained any jaw trauma in the past and were then examined for the presence of GJH and LJH, using defined criteria. Patient and control groups were compared. Statistical evaluation included χ(2) test and paired Student's t test. Odds ratio was calculated in order to assess the relative risk of developing RC and CCL when the etiological factor was present. The results showed a significant association between RC and GJH (OR=9.6, p=0.0010) as well as LJH (OR=38, p=0.0001). CCL was clearly associated with GJH (OR=7.5, p=0.0030) while its association with LJH was not significant (OR=9.5, p=0.0582). No significant association with previous trauma was found. The results indicate that GJH is an important etiologic factor for the development of RC and CCL of the TMJ.
M Ogren; C Fältmars; B Lund; A Holmlund
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-31
Journal Detail:
Title:  International journal of oral and maxillofacial surgery     Volume:  -     ISSN:  1399-0020     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-6-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8605826     Medline TA:  Int J Oral Maxillofac Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
Department of Oral and Maxillofacial Surgery, Institution of Dental Medicine, Karolinska Institutet/Karolinska University Hospital, Huddinge, Sweden.
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