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  • Title: Evaluation of disk position and prevalence of internal derangement, in a sample of the elderly, by gadolinium-enhanced magnetic resonance imaging.
    Author: Schmitter M, Rammelsberg P, Hassel A, Schroeder J, Seneadza V, Balke Z, Essig M.
    Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2008 Dec; 106(6):872-8. PubMed ID: 18554938.
    Abstract:
    OBJECTIVES: To assess disk position and the prevalence of disk displacement (DD) in a sample of the elderly by use of contrast agent-enhanced magnetic resonance imaging (MRI). STUDY DESIGN: Thirty subjects (73-75 years old) were drawn from a representative sample and examined clinically. The position and contours of the temporomandibular disk was assessed by using gadolinium-enhanced MR images which were evaluated by 2 independent raters. Statistical assessment was performed by using descriptive statistics and nonparametric tests. RESULTS: Agreement between raters with respect to disk position was excellent. The MRI showed that 8 subjects (27%; 2 men, 6 women) had DD. CONCLUSION: Gadolinum-enhanced MRI showed that DD is common in the elderly (27%) and that DD occurs more frequently in women than in men. In women without DD the disk is positioned more anteriorly than in men.
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