This dog belongs to a local law enforcement agency in Atlanta. The officer astutely noticed the discoloration of the canine tooth. Any tooth that is discolored intrinsically as this one is should have root canal therapy or be extracted. The pulp is dead or in the process of dying and will cause problems with bone destruction at the root apex (tip) Notice the wide periodontal ligament space associated with this tooth radiographically. The obturation material consisted of a simplifil plug and Guttaflow.