American Board of Orthodontics (ABO) Practice Exam 2025 - Free Orthodontics Practice Questions and Study Guide

CT (Computed Tomography) is recognized as the gold standard for evaluating the bony structures of the temporomandibular joint (TMJ) because it provides high-resolution images that clearly demonstrate bone morphology and any potential pathological changes. CT scans can visualize the intricate details of bony anatomy, including the condyle, glenoid fossa, and other critical structures, which is essential for diagnosing conditions such as osteoarthritis, fractures, or other bony anomalies that may not be adequately assessed by other imaging modalities.

While MRI is excellent for evaluating soft tissues, such as ligaments and cartilage, it does not deliver the same clarity or detail when it comes to bony structures. X-rays offer limited information and may not properly visualize the TMJ's complex anatomy. Though arthrography can provide some details, it primarily focuses on joint spaces and soft tissue rather than giving a comprehensive evaluation of bony structures. Thus, CT remains the preferred imaging technique for accurate assessment in clinical settings.