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.

Angle class I, bony class I;

Crowding dentition, individual teeth reverse jaw;

Asymmetry of upper arch

1. Align the upper and lower dentition to relieve congestion;

2. Correct the reverse jaw and lockjaw of individual teeth.

1. Correct the reverse jaw problem and crowding of lower dentition by arch expansion + adjacent enamel removal.

2. Maintain bilateral molar relationship.

3. Lower the lower anterior teeth, improve the coverage and level the spee curve.