A panoramic radiograph shows a 'J-shaped'/angular bony defect type. Which periodontal therapy approach is indicated?

Correct answer: A. Regenerative therapy

• A. Correct (intended). Narrow, contained angular/intrabony (e.g., 2–3 wall) defects favor regenerative procedures (bone graft/GTR) to rebuild lost support.
• B. Incorrect (intended). Resective/osseous surgery is used for shallow, horizontal, or non-contained defects rather than contained intrabony defects amenable to regeneration.

Note: This recall item was worded ambiguously; the contained angular defect points toward a regenerative approach.