Would buccal pad of fat be comparable to platelet rich fibrin for Zygomatic implant coverage as a step for reconstruction of atrophic posterior maxilla, in terms of peri-implant soft tissue thickness and avoiding complicated postoperative sequalae?
Patients with severely atrophic edentulous upper arch (Cawood class IV, V, VI) that could not be restored by other type of treatment
Patients who had at least 8-12 mm vertical bone height in anterior maxilla to allow installation of 2 conventional implants.
Lacking posterior maxillary bone support due to significant sinus pneumatization
Good systemic health (ASA score I-II)
Patient not willing to give his/her informed consent.
Patients with systemic disease that did not permit the surgical procedure (including general anesthesia).
Patients with uncontrolled diabetes or under bisphosphonate therapy.
Heavy smoker. (> 20 cigarettes daily)