What is considered the best method to close an oro-antral fistula?

Surgery is regarded as the best method to close an oro-antral fistula because it allows for direct and effective repair of the tissue. An oro-antral fistula is an abnormal connection between the oral cavity and the maxillary sinus, which can lead to complications such as chronic sinusitis and increased risk of infection.

Surgical intervention offers the advantage of precisely excising the fistula and adequately approximating the edges of the tissue, thus facilitating proper healing. This method typically employs flaps from surrounding tissues to cover the defect, promoting closure and restoring the integrity of the maxillary sinus and oral cavity.

Other methods, while they may have some supportive functions (such as antibiotics for infection control or grafts for tissue repair), do not address the underlying structural abnormality as effectively as direct surgical repair. Additionally, the use of dental adhesives may not provide a permanent solution and is not a standard treatment for this type of condition, which requires more comprehensive intervention.