When the root canal of the canine tooth of a dog is exposed due to wear or fracture, the result may be abscessation, bone resorption, and evulsion of the alveolus. The tooth must be extracted or endodontic therapy may be performed to restore the root canal. Techniques are described to stabilize both maxillary and mandibular canine teeth through root canal restoration and apicoectomy to seal the apex of the root and prevent future infection and abcessation.