Osteoarthritis (OA) is themost common arthritiswhich affects the human body and can affect the temporomandibular joint (TMJ). The diagnosis of TMJ OA is essentially based on clinical examination. However, laboratory tests and radiographic exams are also useful to exclude other diseases. The diagnosis ofOAmay be difficult because of otherTMJpathologies that can have similar clinical and radiographic aspects. The purpose of this study was to describe an unusual case of bilateral TMJOA in an advanced stage and discuss its most common clinical, laboratory, and radiographic findings, focusing on their importance in the differential diagnosis with other TMJ diseases. Erosion, sclerosis, osteophytes, flattening, subchondral cysts, and a reduced joint space were some of the radiographic findings in TMJ OA. We concluded that, for the correct differential diagnosis of TMJ OA, it is necessary to unite medical history, physical examination, laboratory tests, and radiographic findings. Computed tomography is the test of choice for evaluating bone involvement and for diagnosing and establishing the degree of the disease. 1.
Ferrazzo, K. L., Osório, L. B., & Ferrazzo, V. A. (2013). CT Images of a Severe TMJ Osteoarthritis and Differential Diagnosis with Other Joint Disorders. Case Reports in Dentistry, 2013, 1–5. https://doi.org/10.1155/2013/242685