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
Periodontal pockets which offer the least possibility for
bone regeneration are classified as	________ pockets. 
Select and explain. 
A. suprabony, B. one-wall infrabony, C. two-wall infrabony, D. three-wall infrabony
B: one-wall infrabony
Answer: B: one-wall infrabony 
Explanation: None