“…3,4 Correct diagnosis of related oral, dental, and sinus abnormalities requires a meticulous examination, and knowledge of the involved anatomical structures and ancillary diagnostic instrumentation, especially radiography and endoscopy, can be of particular value. [5][6][7][8] The treatment or oroantral fistula formation as a sequel of dental or periodontal disease and/or exodontia. [1][2][3][4]9 Fistulas can be a challenge for equine practitioners, and an appropriate treatment plan is often limited by owners' commitment, patience, and budget.…”