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. When controlling #13#23 mesial movement, the root was not controlled, resulting in the mesial inclination of the crown. X-ray showed that the root of the tooth was longer, so it was more difficult to control the root.

2. Through the comparison of preoperative and postoperative photos, the effect of aligning dentition and anterior tooth adduction is obvious.

3. The effect of distal movement of posterior teeth in this case reached the expectation and was able to return the molar relationship to neutral relationship.

1. Yiqimei invisible appliance can accurately expand individual teeth in the buccal direction, correct individual tooth malocclusion, and have an obvious effect on aligning dentition.

2. The patient is an adult female with high aesthetic requirements. Invisible correction can first meet the aesthetic needs of the patient.

4. The tooth movement design of yiqimei invisible correction is reasonable, and the patients cooperate well, so the correction effect is very satisfactory.