Front teeth are commonly known as front teeth. The upper and lower jaws located in the front of the mouth are arranged in an arc, which are divided into maxillary central incisors, maxillary lateral incisors, mandibular central incisors and mandibular lateral incisors, and * * * eight incisors. The lip crown is wedge-shaped, only one, and the cutting edge is thin, so its main function is to bite off food and facilitate the chewing of molars. About 6 years old, deciduous teeth are replaced by permanent teeth.

The crown is wedge-shaped, the neck is thickest, and it gradually becomes thinner towards the cutting end, forming a blade shape, which can be used to cut off food. The lip surface of the crown is slightly convex, almost trapezoidal, and the center of the tongue surface is sunken into a nest, which is called the lingual fossa. The root of the incisor is slightly conical or oblate, which is a typical single tooth.

Tooth cutting is the use of cutting edge, under the synergistic effect of masticatory muscles, to cut food into pieces. There are 4 central incisors and 4 lateral incisors adjacent to the central incisors. Central incisors and lateral incisors form a incisor group.

I hope it can help you solve the problem.