In the video, a person is seen holding a dog's mouth open with their hand. The dog's teeth are visible, and the person is looking closely at them. The dog appears to be calm and cooperative. The person's hand is steady, and they seem to be examining the dog's teeth for any signs of decay or damage. The dog's mouth is open wide, and its tongue is visible. The person's hand is clean, and they are wearing a ring on their finger. The dog's teeth are white and appear to be in good condition. The background is not visible, and the focus is on the interaction between the person and the dog.