Fig. 3
From: A pedicled buccal periosteal flap for the closure of oro-antral fistula
(A) Preoperative photograph of an oroantral fistula (B) incision and reflection of buccal mucosal flap, (C) bony defect related to the oroantral fistula of upper left first molar, (D) reflection of periosteal flap from the underlying bone, (E) suturing of the periosteal flap over the oroantral fistula, (F) suturing of the buccal mucosa to the palatal tissue, Case No. 2