Class II div 2
,
Posterior crossbite
,
Deep bite
,
Asymmetric arches
,
Maxillary midline deviation
,
Midline shift
,
Crowding
,
Rotations

Distalization

,

Leveling curve of Spee

,

Extrusion

,

Intrusion

,

Expansion

,

Proclination

,

IPR

,

Elastics: Class II

,

Elastics: Class II in Additional Aligners

,

Elastics: vertical

Courtesy of Dr S. Okano, 2021

Treatment Summary

Patient Information

Age: 17
Gender: female
Invisalign Treatment Option: Invisalign Teen

Total Treatment Time

24 months

Number of aligners

Maxillary: 54 + 25 + 15 = 94
Mandibulary: 52 + 25 + 13 = 90

Aligner Wear time

1-week

Retention

Maxillary: Other
Mandibular: Other

Results achieved

Class I relationship achieved
Functional canine guidance on both sides
Posterior crossbite corrected
Normal overjet and overbite achieved
Deepbite improved
Significant improvement of overbite
Midlines coincident
Proper axial inclination of incisors
Curve of Spee leveled
Arches aligned and coordinated
Alignment of both arches through derotation
Arch form improved
Aesthetic smile line was achieved
All treatment goals were achieved case
Harmonic arches were achieved

Comments

Despite the fact that the roots of UR1 and UL1 were too short, we were able to minimize the damage by minimizing the amount of movement
To improve scissorsbite(UR4) and posterior crossbite(left side) we aligned and coordinated the arches, which proved to be very effective
In initial aligners, sequential distalization was performed to improve Class II
We continued using Class II elastics (3/16 inch, 4.5 OZ) in initial aligners
Optimized extrusion attachments for molars were effective for detailing on the left side molars