Infection and unnecessary pain in patients is best avoided through prompt treatment of a broken tooth; watching and waiting is not an appropriate action plan. Treatment options include extraction and endodontic therapy. Extraction may be elected if there is minimal remaining tooth structure, significant facial swelling indicating an end-stage periapical infection, or radiographic evidence of significant root pathology. If the behavior that caused the complicated crown fracture cannot be corrected, extraction may be the best option. When maintenance of the tooth is desired, root canal therapy is indicated. Endodontic treatment should be performed by a board-certified veterinary dentist to eliminate bacteria in the root canal system through debridement, disinfection, and obturation of the canal, followed by restoration of the crown fracture site.