This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
A patient gives a history of previous chronic abscess on the deciduous precursor of 11. The following radiograph indicates: 
Select and explain. 
A. Enamel hypoplasia, B. Turner’s hypoplasia, C. Amelogenesis imperfecta, D. Dentinogenesis imperfecta
B: Turner’s hypoplasia
Answer: B: Turner’s hypoplasia 
Explanation: Turner’s Hypoplasia
This condition represents a defect occurring during amelogenesis that is the result of either local trauma or infection originating from the deciduous predecessor.
Radiological signs
If the deformity is minimal, the tooth will show a localized area of hypoplasia. A prolonged disturbance will lead to pronounced changes in tooth morphology that include gross deformity, irregularity and a reduction in crown size.
Key Concept