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: Pathology
Complete obliteration of pulp is seen in all except: 
Select and explain. 
A. Type I dentinogenesis imperfecta, B. Type II dentinogenesis imperfecta, C. Type III dentinogenesis imperfecta, D. Dentin dysplasia
B: Type II dentinogenesis imperfecta
Answer: B: Type II dentinogenesis imperfecta 
Explanation: None