How many teeth do dogs and cats have, anyway?
Dogs start out with 28 deciduous (baby) teeth, cats start out with 26 deciduous teeth. By six months of age, these baby teeth fall out and are replaced by permanent teeth, 42 in the dog and 30 in the cat.

Will I find the deciduous teeth, and what happens when they don't fall out on their own?
You may or may not find the teeth as they fall out. As dogs play and chew on toys, you might see a tooth. Likewise, as a cat grooms, you may find a tooth in the fur. If the deciduous teeth don't fall out and the permanent teeth erupt under them, this can lead to problems, such as increased tartar formation, malocclusion problems, and gingival (gum) irritation.

When should dental care start with my pet?
The earlier the better. With the help of your Veterinarian, be on the lookout for retained deciduous teeth and malocclusion (bad bite) problems. Your Veterinarian can teach you how to care for your pet's teeth and gums early on.