The results of the usual operations for closure of oro-antral fistulae, ie, the buccal flap and the palatal flap, with or without Caldwell-Luc operation, are analyzed for 100 patients. The results of the buccal flap and palatal flap operation are independent of the presence of teeth adjacent to the oro-antral fistulae. The buccal and the palatal flap operations for closure of oro-antral fistulae without maxillary sinusitis have the same number of failures. In conjunction with a Caldwell-Luc operation, the palatal flap is a significantly better method than the buccal flap. No changes of the vestibular sulcus will occur after the palatal flap operation, while a reduction of the vestibular sulcus may occur after the buccal flap operation.
Von Wowern N. Treatment of Oro-Antral Fistulae. Arch Otolaryngol. 1972;96(2):99–104. doi:10.1001/archotol.1972.00770090173001
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