Abstract
To present the current treatment approach for oroantral fistula causing maxillary sinusitis. Case series. Four cases of oroantral fistula (diameters: 6, 9, 11 and 13 mm) due to chronic maxillary sinusitis were treated by excision of all diseased oroantral fistula tissue, followed by endoscopic creation of a large middle antrostomy and closure of the fistula using buccal flaps. A synthetic surgical glue and local alveolar bone were used. Patients were followed up for six months to three years; all were considered cured. Most surgeons use buccal or palatal flaps, combined with the Caldwell-Luc procedure, to treat chronic odontogenic sinusitis and to repair fistulae more than 5 mm in diameter. This study supports the hypothesis that an endoscopic technique could be successfully used in patients with oroantral fistula causing chronic maxillary sinusitis of dental origin, instead of the Caldwell-Luc procedure, at least in patients with a small to medium-sized oroantral fistula.
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