FECHAMENTO DE COMUNICAÇÃO BUCO-SINUSAL UTILIZANDO CORPO ADIPOSO DE BICHAT: REVISÃO DE LITERATURA

The proximity of the maxillary sinuses to the roots of the upper back teeth makes these structures a major concern for dentistry. After the extraction of these teeth, communication can occur between the oral cavity and the maxillary sinus, which can cause various unpleasant symptoms for patients, such as difficulty swallowing liquids and solid foods, a feeling of pressure, altered vocal characteristics, altered taste, headache, runny nose, halitosis and purulence. In addition, other conditions such as instrument trauma, removal of cysts and tumors, and periapical lesions can also lead to oral-sinusal communication. The aim of this study is to discuss the surgical technique that uses the fatty body of the cheek, known as the Bichat ball, to treat oral-sinusal communications (OSC). Diagnosis is made through clinical and radiographic analysis, including visual and tactile inspection and the Valsalva maneuver. Imaging tests include periapical radiographs, posteroanterior Waters radiographs, panoramic radiographs and computed tomography, which is considered the “gold standard”, providing more precise information without overlapping. When the oral-sinusal communication is smaller than 2 mm, it can be treated with clot stabilization, while lesions larger than 3 mm require a surgical approach for closure within 48 hours, in order to avoid complications. Plugging techniques, such as palatal soft tissue flap rotation, cheek fat body traction, platelet-rich fibrin (PRF) application and autogenous grafting, can be applied.  With an extensive range of techniques at our disposal for correcting intraoral defects, a thorough analysis is necessary. After reviewing the available literature, it is clear that the method discussed for the correction of CBS is an excellent option. In addition to being cost-effective and simple, it has a high success rate with a positive prognosis, especially in cases of medium and large defects.