Cierre de fístula oroantral con injerto óseo y con rotación y avance de colgajo palatino

oroantral fistula occurs between other causes as a result of the extraction of a molar in relation to the maxillary bone. as a result the patient experiences episodes of sinusitis refractory to medical treatment. surgical repair remains the best solution, there are different techniques. the aim is to show our experience of one case operated using a rotation and advancement palatal flap and autologous bone graft. the clinical case is a 32 year old woman that two weeks after removal of upper left molar suffers repeated episodes of unilateral sinusitis. physical examination and computed tomography shown left maxillary chronic sinusitis secondary to an oroantral fistula, due to tooth extraction from maxillary bone. surgical repair is performed using a rotation and advancement palatal flap and autologous bone graft. six months following there was no complication neither recurrent sinusitis, with optimal results. oroantral fistula is a problem that has multiple options for surgery. the use of autologous bone graft and rotation and advancement palatal flap intended to be a good surgical option, allowing closure of the defect.