Acurácia dos critérios de diagnóstico para pesquisa das desordens temporomandibulares (RDC/DTM) no diagnóstico dos deslocamentos de disco da articulação temporomandibular no plano sagital

Abstract

The aim of this study was to evaluate the accuracy of the Research Diagnostic Criteria to Temporomandibular Disorders (RDC/TMD), from the comparison with magnetic resonance imaging (MRI) findings in the diagnosis of disc displacements of the temporomandibular joint in patients seeking treatment for temporomandibular disorders. Twenty patients were evaluated in a total of 40 joints examined. To detect abnormalities in disc position was employed clinically using the RDC/TMD, by a single calibrated examiner, “blinded” to the MRI scans. The diagnosis of MRI was obtained from patients performed by two specialists in oral radiology, “blinded” to the clinical examination. Based on the Kappa value, were found acceptable levels of reliability intra examiner in the application of RDC/TM, and intra e inter examiner in the evaluation of MRI. Kappa values for agreement between RDC/TMD and MRI were better in the diagnosis of disc displacement on the right side (k = 0.913). In this study, the RDC/TMD was valid for diagnosing disc displacement of the TMJ, with 95% accuracy for the evaluation of ATM on the right side and 75% of the left side, suggesting the need for a standardized examination conducted by trained investigators in the evaluation of patients with TMD.