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: Surgery
Most common odontogenis cyst is ? 
Select and explain. 
A. Dentigerous cyst, B. Periapical cyst, C. Odontogenic keratocysts, D. Gorlin cysts
B: Periapical cyst
Answer: B: Periapical cyst 
Explanation: None