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
The most important aspect of emergency treatment for
an acute apical abscess is to: 
Select and explain. 
A. Produce sedation, B. Obturation, C. Establish drainage, D. None of the above
C: Establish drainage
Answer: C: Establish drainage 
Explanation: None