Endodontic treatment including apexification in a chow chow with a necrotic immature mandibular canine tooth.

A necrotic immature mandibular, canine tooth in a two year-old, male, intact Chow Chow was endodontically treated. This tooth had an open apex, wide root canal, thin dentinal walls, and there was periapical bone resorption. An apexification procedure was used to induce apical closure by calcified tissue formation, with resolution of the periapical inflammation.