The primary purpose of teeth is to facilitate the process of digestion by mechanically breaking down food into smaller, more manageable pieces. This process begins with chewing, which increases the surface area of the food and makes it easier for enzymes in saliva and subsequent digestive processes to work effectively. Teeth are also essential for speech, as they help articulate certain sounds. Different types of teeth serve various functions: incisors for cutting, canines for tearing, and molars for grinding. In addition to their digestive role, teeth contribute to facial structure and aesthetics.