This is a 4 year old cat with extrusion, 3 mm pockets. Radiographic changes show increased PDL space apical to the marginal bone, consistent with periodontal disease. Other teeth show no changes. Likely this cat traumatized the tooth predisposing it to periodontal changes.
Brett Beckman, DVM, FAVD, DAVDC, DAAPM

Young cat with periodontal disease maxillary canine x-ray

Young cat with periodontal disease maxillary canine. Treatment was extraction.