Objective
The aim of this study was to characterize occlusal stability in young adults with
temporomandibular disorder (TMD).
Study Design
Thirty-one patients (aged 19-31 years) with complete natural dentition and Angle class
I occlusion who exhibited TMD were compared with 31 age- and sex-matched healthy control
subjects. The occlusal registrations were performed using the T-Scan II occlusal imaging
and analysis system. Center of occlusal force, asymmetry index of occlusal force,
maximal movement of COF, premature contacts, clusion time, and disclusion time were
recorded.
Results
Compared with control subjects, TMD subjects had a significantly higher frequency
of premature contacts (16/32, 50.0%) and greater bilateral asymmetry in the occlusal
force. Furthermore, prolonged clusion time and disclusion time also were observed
in TMD subjects.
Conclusions
These results suggest that a significant association exists between occlusal stability
and TMD in young adults.
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Article info
Publication history
Published online: July 30, 2012
Accepted:
October 31,
2011
Received in revised form:
October 20,
2011
Received:
March 29,
2011
Identification
Copyright
© 2012 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
