Which intraoral view is best for evaluating crown-to-root ratio?

• A. Periapical
• B. Bitewing
• C. Occlusal
• D. Panorama

Answer: (A)

Evaluating crown-to-root ratio requires a view that shows the entire tooth from crown to root tip, along with the surrounding bone, so you can accurately compare the crown height to the root length and assess bone support. A periapical radiograph provides this view: it includes the full length of the tooth, the root apex, and the adjacent periodontal bone, with minimal distortion. Bitewings focus mainly on crowns and the crestal bone but don’t reveal the full root length; occlusal and panoramic views introduce distortion or lack detail for precise root measurement. So the periapical view is the best choice for this assessment.