A fibrous tract lined with epithelium is produced that can be blocked by granulation tissue, but which allows the passage of fluid, food, or bacteria from the oral cavity to the maxillary sinus, perpetuating the infection.Treatment requires drainage of the sinus infection and repair of the oral-sinus communication with a local flap.
ObjectiveTo determine the success rate of the repair of oralsinus communications greater than 5 mm with the Bichat ball (BB) and vestibular mucoperiosteal flaps.
DesignProspective and descriptive.
MethodsThe following data were prospectively collected and recorded as of March 2019 in patients who would be treated for OAF with BB and vestibular mucoperiosteal flaps: Sex, age, etiology of the fistula, location and laterality of the oral-sinus communication, history of previous closures, success, and complications of the repair of the fistulas.The study was carried out in the Rhinosinusology