Traumatic Intrusion of a Maxillary Canine Tooth: 3 Cases.

Of the six recognized types of tooth luxation injuries, intrusion generally carries the most guarded long-term prognosis due to the high risk of complications, including root resorption, ankylosis, marginal bone loss, and pulp canal obliteration or necrosis. The degree of traumatic intrusion and stage of root development affects the outcome and treatment planning. This report describes the clinical history, oral and radiographic examination findings, and rationale for surgical extraction in 2 dogs and 1 cat with traumatic intrusion of a maxillary canine tooth.