Use of autogenous bone graft of the anterior wall of the maxillary sinus in the management of oroantral fistula

Resumo

Introduction: The oroantral fistula consists of a persistent communication between the maxillary sinus and the buccal cavity, being a complication resulting from traumas, pathologies or dental extractions. Objective: To present a clinical case of oroantral fistula closure using autogenous bone graft from the anterior sinus wall as a treatment option. Materials and Methods: Patient with a history of traumatic extraction of the upper left molars about 4 months ago. During the clinical examination, there was an orifice in the left maxillary alveolar crest, suggestive of oroantral fistula, responding positively to the Valsalva maneuver. Panoramic radiographic examination evidenced continuity between the oral cavity and the left maxillary sinus, which presented with opacification, suggestive of acute maxillary sinusitis on the left side. Sinusitis was treated within 15 days. After treatment, we evaluated the patient who was asymptomatic and, at that moment, the surgical procedure for the oroantral fistula closure was planned, removing a bone block from the anterior wall of the left maxillary sinus presenting the sinus membrane and grafting with fixation using System 1.5 mm with an "L" plate and four bolts. Conclusion: This surgical technique is useful for the closure of chronic oroantral fistulas in patients with oroantral fistulas.

Descriptors: Oroantral Fistula; Bone Transplantation; Maxillary Sinus.

References

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