Aspirated dental calculus in a dog.

Aspiration of a dental calculus, with lodgement of the calculus in a mainstem bronchus, was identified in a dog after dental prophylaxis. The calculus was located by use of radiography and bronchoscopy, and was removed via thoracotomy. Aspiration is a possible complication of dental prophylaxis. Endotracheal intubation with a properly inflated cuff, and thoroughly rinsing the oral cavity after prophylaxis, may avoid this and similar complications.