Britannica Sources used in this answer

How do incisors help people bite and cut food?

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

Dentistry — dentistry The practice of dentistry involves preventing, diagnosing, and treating oral disease, as well as correcting deformities of the jaws, teeth, and oral cavity.

Incisors are the teeth located at the front of the mouth, specifically adapted for plucking, cutting, tearing, and holding food. Their effectiveness in these tasks is due to their unique shape: the biting portion of an incisor is wide and thin, which creates a chisel-shaped cutting edge.1

Beyond their role in processing food, the upper incisors possess a delicate tactile sense. This allows them to be used for identifying objects within the mouth through a process of nibbling. While incisors are primarily designed for these functions, they work in conjunction with other teeth, such as canines, which also assist in cutting and tearing, and molars, which are used for crushing and grinding.1