Which imaging modality is most appropriate for evaluating impacted teeth or complex craniofacial anatomy with minimal dose, and what caveat applies?

Which imaging modality is most appropriate for evaluating impacted teeth or complex craniofacial anatomy with minimal dose, and what caveat applies?

• A. MRI; uses no radiation.
• B. CBCT; it provides detailed 3D information but delivers higher radiation than 2D imaging; use only when justified.
• C. Panoramic; always lower dose than 3D.
• D. Intraoral periapical; provides 3D information.

Answer: (B)