Teeth are hard, calcified structures found in the mouths of many animals, including humans. They are primarily used for biting and chewing food, aiding in the digestive process. Teeth are made up of different parts, including enamel, dentin, and pulp, each serving a specific function. In humans, there are two sets of teeth: primary teeth, also known as baby teeth, and permanent teeth. The primary set usually consists of 20 teeth, while adults typically have 32 permanent teeth. Proper dental hygiene, including brushing and flossing, is essential for maintaining healthy teeth and preventing cavities and gum disease.