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- After the tooth is extracted, the veterinary dental surgeon creates a mucogingival (tissue) flap so the defect can be covered and the fistula can heal.
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Nov 4, 2021 · During a session at New York Vet 2021 a board-certified veterinary dentist discusses his process for safely and successfully repairing oronasal fistula following tooth extraction. An oronasal fistula is an opening, known as a communication, between the oral and nasal cavity.
Nov 1, 2023 · Repairing oronasal fistulae with double flaps. This technique may only be used to treat pre-existing oronasal fistulas, but not for treatment of fistulas discovered at the time of extraction of the maxillary canine tooth. November 1, 2023.
Oronasal fistulae are often associated with a diseased or missing maxillary tooth, but they can result from other congenital, traumatic, or neoplastic conditions affecting the primary and secondary palate. An oronasal fistula may occur secondary to surgical extraction of a maxillary canine tooth.
An oronasal fistula may be visible in the area of a previously extracted maxillary canine tooth when a mucoperiosteal flap was not used to close the extraction site (FIGURE 11). In addition, an oronasal fistula may be iatrogenic, created during extraction by removal of a piece of bone on the palatal aspect of the root with the tooth root itself.
Oronasal Fistula Repair. Common causes of oronasal or oroantral fistula (communication between the mouth and the nose) formation include advanced periodontal disease, complications from extraction of a pet’s tooth or incomplete healing after tooth extraction.
When dealing with oronasal fistula, it is recommended to try to repair the defect on the first surgical attempt. This minimizes interference with vascular supply, reduces time and cost associated with surgery, and more tissue is always available on the first procedure.
This usually occurs following canine tooth extraction or extraction of teeth with severe periodontal disease leading to direct communication with the nasal cavity. Acute oronasal fistula is treated by elevating a buccal mucosal flap using a #15 scalpel blade or a periosteal elevator.
