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: Surgery
All of the following are synthetic dressing in burn wound except 
Select and explain. 
A. Opsite, B. Biobrane, C. Dacron, D. Integra
C: Dacron
Answer: C: Dacron 
Explanation: Dacron is vascular graft material.