Fig. 4
From: A pedicled buccal periosteal flap for the closure of oro-antral fistula
(A) Preoperative panoramic X-ray film (B) Preoperative photograph showing the vestibular depth of buccal sulcus before extraction of upper left first molar (C) Incision of buccal mucosal flap, (D) Reflection of the flap showing bony defect related to the oroantral fistula of upper first molar, (E, F,G) Dissection of periosteal flap from the overlying buccal mucosa, (H) Suturing of the periosteal flap over the oroantral fistula, (I) Suturing of the buccal mucosa to the palatal tissue with preservation of vestibular depth (J) Postoperative panoramic X ray, Case No 9