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
Odontoplasty is indicated in: 
Select and explain. 
A. Grade I furcation involvement, B. Grade II furcation involvement, C. Grade III furcation involvement, D. Grade IV furcation involvement
A: Grade I furcation involvement
Answer: A: Grade I furcation involvement 
Explanation: None