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
An erupting tooth is filled with silver and copper oxyphosphate is known as: 
Select and explain. 
A. Fissurotomy, B. Prophylactic odontectomy, C. PRP, D. ALL OF THE ABOVE
B: Prophylactic odontectomy
Answer: B: Prophylactic odontectomy 
Explanation: None