Radiology · single question
What is the BEST radiograph for orthodontic diagnosis and treatment planning?
Show answer and explanation
Correct answer: D. Lateral cephalometric radiograph
- A. Incorrect. Panoramic provides a dental survey and is used together with the ceph, but alone lacks skeletal measurements.
- B. Incorrect. Full mouth series provides excellent dental/periodontal detail but not skeletal relationships or growth data.
- C. Incorrect. CBCT is gold standard for implant planning and complex surgical cases — not routine orthodontic diagnosis.
- D. Correct. The LATERAL CEPHALOMETRIC radiograph is the standard for orthodontic diagnosis. It allows cephalometric analysis (ANB, Frankfort horizontal, facial profile), growth assessment, and skeletal-dental relationship evaluation — all essential for orthodontic treatment planning.