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
Necrosis and degeneration in short time is seen with 
Select and explain. 
A. Avulsion, B. Lateral Luxation, C. Intrusion, D. Extrusion
A: Avulsion
Answer: A: Avulsion 
Explanation: Necrosis is seen in almost 100 % cases of the avulsion.
Ref: Cohen pathways of pulp, 11th edition