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 primary principle of treating endodontic periapical lesions is 
Select and explain. 
A. To eradicate irritants in the root canal system, B. To reduce the inflammation in the periapex, C. To maintain the health of the periodontium, D. To relieve the symptoms
A: To eradicate irritants in the root canal system
Answer: A: To eradicate irritants in the root canal system 
Explanation: None