| Association of tightly locked occlusion with temporomandibular disorders. | |
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MedLine Citation:
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PMID: 17302944 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The association between teeth loss and temporomandibular disorders (TMD) is still inconclusive. A kind of secondary changes of the occlusion after teeth lose called the tightly locked occlusion (TLO), defined as the occluding contact that delivers angled occlusal force on the drifted neighbour and/or the tipped antagonists of the lost posterior teeth, was hypothesized to be association with TMD. The study aimed at investigating the association between the TLO and TMD. A total of 113 posterior-teeth losing patients, 64 with TMD symptoms (group of TMD) and 49 without (group of TMD-Free) were included. Study casts and joint radiographs were made to diagnose the TLO and joint morphological changes. The simultaneous contribution of the potential variables of gender, age, tooth losing number, the TLO, joint symmetry and signs of osteoarthrosis shown on radiographs were tested through binary logistic regression analysis. In women, the TLO entered into logistic model, and had an effect on the incidence of TMD (P = 0.008). The odds ratio of with-TLO versus without-TLO is 2.6 (95% CI: 1.2, 5.8) after controlling for the effect of gender. Age, tooth lose number, joint asymmetry or osseous changes had no effect on the incidence of TMD. The tightly locked occlusion is associated with some signs and symptoms of TMD. Randomized controlled trials will be needed in further studies to test the hypothesis that treatment of a TLO, as defined in the present study, will have a beneficial effect on the signs and symptoms of TMD. |
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Authors:
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M-Q Wang; H-T Cao; F-R Liu; C Chen; G Li |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of oral rehabilitation Volume: 34 ISSN: 0305-182X ISO Abbreviation: J Oral Rehabil Publication Date: 2007 Mar |
Date Detail:
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Created Date: 2007-02-16 Completed Date: 2007-04-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0433604 Medline TA: J Oral Rehabil Country: England |
Other Details:
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Languages: eng Pagination: 169-73 Citation Subset: D; IM |
Affiliation:
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Department of Oral Anatomy and Physiology, Stomatological College, Fourth Military Medical University, Xi'an City, Shaanxi Province, China. mqwang@fmmu.edu.cn |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Female Humans Incidence Male Malocclusion / complications*, radiography Middle Aged Sex Factors Temporomandibular Joint / pathology, radiography Temporomandibular Joint Disorders / epidemiology, etiology*, radiography Tooth Loss / complications |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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