The term TYPE OF TOOTH can refer to several different types of teeth. An INCISOR is a type of tooth with a flat, chisel-shaped edge that is used for cutting and biting food. Canines are pointed teeth located between the incisors and premolars, and are used for tearing food. WISDOM teeth are the third molars located at the back of the mouth, which usually appear in late adolescence or early adulthood. Premolars are located between the canines and molars, and have two or more cusps that are used for grinding and crushing food. Molars are the largest teeth in the mouth, and have four or more cusps that are used for grinding and crushing food. Cuspids are pointed teeth located between the incisors and premolars, and are used for tearing food. Impacted teeth are teeth that are unable to erupt into the mouth due to obstruction from other teeth or bone.