1. The case was moderately crowded. We used the method of aligning the dentition without tooth extraction to correct the teeth. After the correction, the side view of the face was ok, and there was no excessive upper and lower lip protrusion, so as to achieve a good correction effect.

2. The patient is an adult female. The patient is mainly beautiful. During the correction process, the dentition is aligned and meets the correction plan.

3. The clearance is obtained by pushing the grinding teeth backward, and the outer teeth #15 are discharged into the dental arch and aligned, which has a good effect.

1. Lingual inclination of upper anterior teeth.

2. 15 # buccal inclination, 48 tooth germs exist and are mesial impacted.

3. Dentition crowding.

1. Align the upper and lower dentition, relieve crowding and 15 reverse jaw relationship.

2. The left molar was adjusted to be neutral, and the right molar maintained neutral.

3. Improve the relationship between deep overbite and midline of anterior teeth

1. Yiqimei invisible appliance.

2. Expand the arch, push the upper and lower molars back, cooperate with the adjacent surface to remove the glaze to obtain the gap and align the dentition.