Case of cleft alveolus defect on the right side with oro-nasal fistula. (A) Preoperative images. (B) Intraoperative images. i) Exposure of cleft defect with fistula and preparation of recipient site; ii) Trap door approach for anterior iliac bone graft harvesting; iii) Preparation of PRP and PRF with autogenous blood in centrifuge. iv) Placement of bone graft with PRP and coverage with PRF membrane of the defect area. (C) Postoperative images. (i) 3rd −month postoperative images; (ii) 6th −month postoperative images.