Britannica Sources used in this answer

How do canine teeth help with tearing food?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

A labeled cross section illustration of an adult human molar shows the tooth's crown and root, with layers including enamel, dentin, and pulp, as well as gum, cementum, blood vessels, periodontal ligament, lateral canals, and nerve. — tooth Cross section of an adult human molar.

Canine teeth, also known as cuspids, are specialized structures adapted for the mechanical processing of food. Their primary function in this regard is the cutting and tearing of food particles.12

These teeth are typically characterized by a pointed, often peglike shape, which allows them to effectively pierce and pull apart food materials. In many mammals, canines are the largest teeth in the mouth and may project beyond the level of the other teeth, facilitating this tearing action. While humans possess smaller, less specialized canines compared to many other mammals, they retain the same fundamental role of cutting and tearing alongside the incisors. In addition to their digestive function, canine teeth in various species may also serve secondary roles, such as defense, display, or threatening behavior.123