Align Global Gallery

Invisalign Submission Option: Invisalign Comprehensive

Year: 2023	Difficulty Level: Intermediate
Age: 40	Treatment Time: 1 year 9 months 16 days
Gender: Female

Viet Anh Nguyen

17988

Invisalign Comprehensive

Patient Chief Concern
Crowding, edge-to-edge bite, and lower midline deviation

What learning would you share with other Invisalign providers?
In Class III cases with crowding, edge-to-edge bite, and lower midline deviation, lower arch distalization can be an effective nonextraction strategy when supported with skeletal anchorage. Careful control of distalization mechanics and finishing details can help achieve normal overjet, normal overbite, Class I occlusion, and coincident midlines.

What contributed most to this treatment being successful?
Clear biomechanical planning and effective skeletal anchorage contributed most to the success of this case. Two miniscrews placed in the lower arch allowed controlled mandibular distalization, helping correct the Class III relationship, improve the lower midline, and establish a stable final occlusion.

Clinical Indications

Class III
Crowding
Edge to edge bite
Mandibular midline deviation

This case presented with a Class III relationship, crowding, edge-to-edge bite, and lower midline deviation.

Modalities

Distalization
Elastics: Class III
IPR
TADs

Two miniscrews were placed in the lower arch to provide skeletal anchorage for mandibular arch distalization. This allowed correction of the Class III relationship, improvement of the lower midline, and controlled finishing of the occlusion.

Treatment Information

Retainer: Wire retainer

Smartforce: Conventional and Optimized

Submission Process: iTero Scanner Element/5D

Length of Treatment: 21 months

Additional Aligners: 2

Number of Aligners:

	Initial	Additional	Total
Maxillary	37	34	71
Mandibular	37	34	71

Aligner Wear Time:

Images

Initial

Final

Radiographs

Initial Panorama

Final Panorama

Initial Lateral

Final Lateral

ClinCheck

Summary

The crowding and edge-to-edge bite were corrected successfully, with improvement of the lower midline to coincidence. Treatment finished with normal overjet, normal overbite, Class I occlusion, and well-coordinated arches.