Endodontics · single question
What is the BEST radiographic method to diagnose a vertical root fracture when a periapical radiograph is NOT an option?
Show answer and explanation
Correct answer: C. CBCT (Cone Beam CT)
- A. MRI provides excellent soft tissue detail but poor resolution for mineralized structures like tooth roots. CBCT is the appropriate tool.
- B. Bitewing radiographs are for interproximal caries and bone level assessment — they do not show root apices where vertical root fracture signs typically appear.
- C. CBCT is the gold standard for diagnosing VERTICAL ROOT FRACTURE when PA radiographs are inconclusive. Its 3D imaging (axial, sagittal, coronal planes) allows visualization of the fracture line that may be missed on conventional 2D radiographs.
- D. Panoramic radiographs have poor resolution for small fractures and lack the 3D information needed to confirm vertical root fracture. CBCT is far superior.