Clean as a Hound's Tooth (S03E06)

George experiences a painful toothache and decides to see his dentist. During the visit, the dentist fits him with a cutting-edge artificial tooth, which unexpectedly turns out to be a canine tooth. Unfortunately, the dentist is unavailable for a replacement since he has gone on vacation. As a result, George starts exhibiting peculiar behaviors, chasing after cats and mailmen, and even barking at his family, much to their confusion.