Occasionally a spur on the tooth can perforate a major blood vessels in the mouth and cause fatal haemorrhage. In this case the buccal artery had been perforated by a sharp spur on the tooth that had torn the mucosa (arrow). A large blood clot was occluding the pharynx.
MOUTH
This image shows the oral cavity of a rabbit that was presented salivating and dyspnoeic. There was a loud respiratory noise. He had a history of dental disease and most of the crowns in his teeth were missing. The symptoms suggested a laryngeal foreign body so the rabbit was anaesthetised and a piece of hay that was lodged in his larynx was removed. There was significant sublingual oedema that subsided. The rabbit recovered from this incident but only because the owner presented the rabbit promptly.