Each tooth in the dentition of the jaw has certain functions and significance. The front teeth are represented by incisors. There are 4 of them on the upper and lower jaw.
In the dental arch, the permanent incisors are numbered 1.1, 1.2, 2.1, 2.2, 3.1, 3.2, 4.1, 4.2.
Temporary (milk) incisors have numbers 5.1, 5.2, 6.1, 6.2, 7.1, 7.2, 8.1, 8.2.
The name "incisor" of the front teeth, from the word cut-cut. The shape with a thin cutting edge is due to the development and functions of the dental-jaw system.
In addition to the function of biting off food, the front teeth are important in the pronunciation of sounds, that is, phonetic. And, which is important in modern society, it is social, that is, the appearance of the face, smiles. Because, first of all, the interlocutor pays attention to the anterior group of teeth.
First comes the incisors, which you use to bite off food, then the fangs, which you use to tear off pieces. And only then comes the time for flat back teeth. which you chew.
Try to eat an apple without using your front teeth)