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. 2012 Nov;114(5):e35-41.
doi: 10.1016/j.oooo.2012.03.023. Epub 2012 Aug 24.

Distribution of diagnoses in a population of patients with temporomandibular disorders

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Distribution of diagnoses in a population of patients with temporomandibular disorders

Daniele Manfredini et al. Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Nov.

Abstract

Objectives: The objective of this study was to describe the frequency of TMD diagnoses in a patient population for comparison with the available literature.

Methods: Five hundred twenty consecutive patients seeking TMD treatment underwent a Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) assessment. The prevalence and age distribution of the different RDC/TMD axis I and II diagnoses were described.

Results: Muscle disorders, disk displacements, and other joint disorders were diagnosed respectively in 56.4%, 42.0%, and 57.5% of patients. Sixty percent of patients had depression symptoms, 76.6% had somatization, and 21.8% presented high levels of pain-related impairment. Disk displacements were more frequently diagnosed in the younger-aged, other joint disorders in the older-aged, and muscle disorders in the middle-aged subjects (ANOVA for mean age comparison, F = 3.355; P = .002).

Conclusions: These distribution frequencies of TMD diagnoses provide insight into the epidemiology of this disease.

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