Which imaging modality provides superior detection of vertical root fractures when conventional radiographs are inconclusive?

Which imaging modality provides superior detection of vertical root fractures when conventional radiographs are inconclusive?

• A. Panoramic radiography
• B. Cone-beam computed tomography (CBCT)
• C. Periapical radiography
• D. Magnetic resonance imaging

Answer: (B)

Vertical root fractures are easy to miss on 2D X-rays because the fracture line can run in a plane that gets superimposed by surrounding teeth and bone. Cone-beam computed tomography provides three-dimensional, high-resolution images with multiplanar reconstructions, allowing you to view the tooth in axial, sagittal, and coronal planes. This makes it possible to trace fracture lines that run buccolingually or obliquely, which often aren’t visible on conventional radiographs. Compared with panoramic or periapical radiographs, CBCT reduces superimposition and reveals details that 2D images miss. Magnetic resonance imaging isn’t routinely used for this purpose due to practicality and availability, so CBCT stands out as the best option when traditional radiographs are inconclusive.

Vertical root fractures are easy to miss on 2D X-rays because the fracture line can run in a plane that gets superimposed by surrounding teeth and bone. Cone-beam computed tomography provides three-dimensional, high-resolution images with multiplanar reconstructions, allowing you to view the tooth in axial, sagittal, and coronal planes. This makes it possible to trace fracture lines that run buccolingually or obliquely, which often aren’t visible on conventional radiographs. Compared with panoramic or periapical radiographs, CBCT reduces superimposition and reveals details that 2D images miss. Magnetic resonance imaging isn’t routinely used for this purpose due to practicality and availability, so CBCT stands out as the best option when traditional radiographs are inconclusive.