Which of the following is TRUE about the radiographic appearance of amelogenesis imperfecta?

Correct answer: A. Enamel layer has similar density to underlying dentin

• A. In amelogenesis imperfecta, the defective enamel is reduced in quantity (hypoplastic) or quality (hypomineralized). On radiographs, the thin or structurally deficient enamel appears similar in density to dentin — it lacks the normal bright radiopaque enamel cap. This is the key radiographic finding. ✓
• B. Normal enamel is the most radiopaque tooth structure. In amelogenesis imperfecta (AI), the enamel is defective and LESS radiopaque, not more.
• C. Hypercementosis (excess cementum) is seen in Paget's disease and other systemic conditions — not in amelogenesis imperfecta.
• D. Pulp obliteration is associated with dentinogenesis imperfecta (DI), not amelogenesis imperfecta.