In the video, a dog is lying down on a table while a person is holding its mouth open. The person is using a tool to clean the dog's teeth. The dog appears to be calm and cooperative. The person is wearing gloves and is focused on cleaning the dog's teeth thoroughly. The dog has a green cloth over its body, and the person is using a blue tool to clean its teeth. The background is not visible, but it seems to be a professional setting, possibly a veterinary clinic.