The indications for tooth extraction must be strictly controlled. Only when teeth have adverse effects on health and cannot be treated and preserved by effective methods can tooth extraction be considered. It is unnecessary and should not be pulled out without pulling out one of your own teeth.

About 50% orthodontists need to have their teeth extracted. The purpose of tooth extraction is:

(1) Arrange the crowded teeth by using the extraction gap. Patients with crowding degree II-III are more likely to have their teeth extracted.

(2) Retract the anterior teeth between tooth extraction, improve the protrusion of dental arch and improve the face shape. For example, some people have protruding lips. After tooth extraction, the protrusion of lips will become smaller and the face will become beautiful.

(3) The occlusal relationship of the posterior teeth is adjusted by the extraction interval, so that the posterior teeth are staggered and the occlusal contact area is the largest, and the best chewing efficiency is achieved.

The teeth are sparse and big. These problems will be improved after correction, and you will have a relatively perfect tooth.

As for the extracted teeth, many hospitals treat them as general medical waste and can take them away by individuals if necessary. Children's deciduous teeth do contain dental pulp stem cells, but the content of stem cells is very small, and the technical requirements for preservation are very high. In the field of medical research, stem cells can be cultured through children's deciduous teeth, but it is not practical for clinical treatment.