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Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Oct;114(4):419-23. doi: 10.1016/j.oooo.2011.10.039. Epub 2012 Jul 26.

Occlusal risk factors associated with temporomandibular disorders in young adults with normal occlusions.

Author information

1
Institute of Stomatology, Nanjing Medical University and Department of Prosthodontics, Stomatologic Hospital affiliated to Nanjing Medical University, Nanjing, China.

Abstract

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.

PMID:
22841427
DOI:
10.1016/j.oooo.2011.10.039
[Indexed for MEDLINE]

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