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 necrotising pressure areas, undergoing bone resorption and endosteal bone formation 
Select and explain. 
A. Juvenile periodontitis, B. Occlusal trauma, C. Chronic suppurative periodontitis, D. ANUG
B: Occlusal trauma
Answer: B: Occlusal trauma 
Explanation: None