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
Apexification is done with 
Select and explain. 
A. Ca(OH)2 at the apex, B. Ca(OH)2 direct pulp capping, C. Indirect pulp capping, D. None
A: Ca(OH)2 at the apex
Answer: A: Ca(OH)2 at the apex 
Explanation: None