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Oroantral fistula (OAF) is a pathologic, epithelialized communication between the oral cavity and the maxillary sinus. OAF most commonly results from posterior maxillary tooth or molar extraction owing to proximity of the dental roots to the maxillary antrum and the thinness of the adjacent antral floor. It also can arise secondary to implant and orthognathic surgeries, cyst and tumor removal, dental infection, trauma, or as a sequela of radiation therapy. Communications larger than 5 mm are less likely to heal spontaneously and can epithelialize, forming an OAF. When locoregional flaps and grafts are not ideal or have failed, but primary OAF closure is mandated, surgical options are unclear. This report describes a novel method for autologous tissue flap coverage from the nasal septum, pedicled off the posterior septal artery, for successful extension to, and closure of, OAFs.
View details for DOI 10.1016/j.joms.2015.11.010
View details for PubMedID 26704432