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: Dental
Most common dental injury of all crown fractures: 
Select and explain. 
A. Crown infraction, B. Uncomplicated crown fracture., C. Complicated crown fracture., D. None of the above.
B: Uncomplicated crown fracture.
Answer: B: Uncomplicated crown fracture. 
Explanation: None