Orthodontic tooth extraction has three main purposes:

1, relieving tooth crowding and aligning dentition;

2. Move the front teeth backward to improve the shape of the protrusion;

3. Coordinate the relationship between the upper and lower dental arches to obtain a good occlusion of the upper and lower teeth.

Common clinical tooth deformities, such as malocclusion and protrusion of teeth and jaws, often need to be corrected by tooth extraction in order to obtain beautiful, stable and functional results. Moreover, when doctors clearly indicate the need for tooth extraction, they will try their best to keep the teeth and pull out the teeth that have been seriously eroded and deformed.

Under what circumstances must a tooth be extracted?

1. Tooth crowding: A certain number of teeth must be extracted during orthodontics, because the amount of teeth does not match the amount of bone, resulting in tooth deformity.

2. Buckteeth: Because they are more convex than teeth, a certain number of teeth need to be pulled out to get a gap, so as to achieve the purpose of front teeth retracting and rear teeth moving forward, improve dental arch protrusion and relieve facial protrusion, thus making the patient's facial profile more beautiful.

3. Need to correct the occlusal relationship: Due to the asymmetry of the upper and lower teeth, it is necessary to adjust the occlusal relationship of the posterior teeth by using the extraction gap to stagger the posterior teeth and maximize the occlusal contact area to achieve the best chewing efficiency.