Surgical treatment of oral-oral communication after root canal therapy

Abstract

Buco-Sinusal (CBS) communication is abnormal continuity between maxillary sinus and oral cavity, to differentiate communication between nasal cavities and oral cavity (nasosinusal communication). Most of the time, this communication can be closed on its own, however, persistence creates a fistula that will lead to CBS closing surgery. The maxillary sinus is a pneumatized cavity (filled with air by nostrils) excavated in the maxillary bone, present from birth unlike other breasts, which grows to 15 years, in the form of a pyramid with a side tip. An incomplete septum may be present within the maxillary bosom in 2.4% of cases. It communicates with the nasal pit through its natural drainage or ostium hole located at the intersinusonasal septum level. The jaw bone only constitutes all the walls of the maxillary sinus except the intersinusonasal septum that shares with the lower cornete, the ethmoidal bone, the palatine bone, the tear bone. The floor of the maxillary sinus constitutes the bone of the upper gum. The teeth qualified as sinus teeth are the upper premolars and molar because their roots are implanted in the maxillary bone and can be in close contact with the cavities of the maxillary sinus or even completely in the breast (antral). In addition, oral sinus communication (BSC) is abnormal communication between a maxillary sinus and oral cavity.