Temporomandibular joint dysfunction tmd can affect a significant portion of the population1 clinical symptoms may include one or more of the following pain in the region of the temporomandibular joint tmj headaches earaches muscle tenderness joint noises such as clicking popping or grating limited opening or deviation of the mandible on opening closing locking and occlusal . Diagnostic imaging of the temporomandibular joint tmj radiographic evaluation is very helpful in the diagnostic process and cone beam ct technology makes accessibility to low cost low radiation ct scans. Temporomandibular joint disease is a significant health problem both in terms of its impact to an individual and its incidence conventional imaging methods are often unable to properly detect and diagnose lesions of this articulation mri is ideally suited to assess both anatomical and functional disturbances. Imaging test indication criteria in the diagnosis of temporomandibular joint disorders one of the failures in diagnosis and treatment planning is an incorrect or unnecessary selection of unsuitable diagnostic tests this occurs because of a lack of knowledge on the part of the professionals regarding the indications of the applicable tests 29. Temporomandibular joint tmj dysfunction is a common condition that is best evaluated with magnetic resonance mr imaging the first step in mr imaging of the tmj is to evaluate the articular disk or meniscus in terms of its morphologic features and its location relative to the condyle in both closed and open mouth positions
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