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  Indian J Med Microbiol
 

Figure 3: Vestibular incision subperiosteal tunnel access with platelet-rich fibrin membrane. (a and b) Preoperative recession depth (c) vertical incision (d) preoperation of subperiosteal tunnel

Figure 3: Vestibular incision subperiosteal tunnel access with platelet-rich fibrin membrane. (a and b) Preoperative recession depth (c) vertical incision (d) preoperation of subperiosteal tunnel