An occlusal radiograph of a child shows primary teeth with the developing permanent successors positioned normally beneath them. The interpretation is:

Correct answer: A. Normal tooth eruption/development

• A. Correct. Developing permanent tooth buds positioned beneath primary teeth, with normal morphology and position, represent normal eruption/development.
• B. An abscess would show a periapical radiolucency on a non-vital tooth, not normal developing buds.
• C. Regional odontodysplasia ('ghost teeth') shows poorly mineralized, abnormal teeth.
• D. Dens invaginatus is an infolding within a single tooth, not the picture described.