| 英文描述 | Extension of infection of the fourth upper premolar into the maxillary recess is the most common cause of sinusitis in dogs, and can also affect cats. In horses an infection of the pulp cavity can occur due to several causes, but if allowed to progress a tooth abscess or sinusitis can develop. If infection in horses complicates or causes alveolar periostitis (inflammation of the periosteum that surrounds the tooth roots in the alveolus or tooth socket), then removal of the affected teeth is indicated. Dx by oral examination and radiography. |