Which type of imaging is commonly used to diagnose TMJ disorders?

Magnetic Resonance Imaging (MRI) is the preferred imaging technique for diagnosing temporomandibular joint (TMJ) disorders due to its ability to provide detailed images of soft tissues. MRIs can visualize the internal structures of the TMJ, including the articular disc, ligaments, and surrounding muscles, which are critical in evaluating conditions such as disc displacement, inflammation, and cartilage degeneration.

This imaging technique allows for a non-invasive assessment of the joint without the exposure to ionizing radiation, making it safer for repeated use. The high contrast resolution of MRI images is particularly beneficial in identifying subtle changes that may not be visible through other imaging modalities.

In contrast, X-rays primarily capture bony structures and may not adequately depict the soft tissues relevant to TMJ disorders. While CT scans provide excellent detail of bone architecture and can be useful in assessing bony abnormalities, they do not provide the soft tissue resolution that MRI does. Ultrasound may also be utilized in some cases for dynamic assessment or to guide injections, but it is not as comprehensive as MRI for diagnosing TMJ disorders.