Class II div 1
,
Increased overjet
,
Deepbite
,
Posterior crossbite
,
Asymmetric arches
,
Mandibular midline deviation
,
Crowding
,
Rotations

Elastics: Class II
,
Distalization
,
Mesialization
,
Leveling curve of Spee
,
Intrusion
,
Retraction
,
Other extraction
,
Space Closure

Treatment information

  • Age: 18
  • Gender: female
  • Invisalign Treatment Option: Invisalign Teen

Diagnostic Summary

  • Class II div 1
  • Increased overjet
  • Deepbite
  • Posterior crossbite
  • Asymmetric arches
  • Mandibular midline deviation
  • Crowding
  • Rotations

Use of:

  • Distalization
  • Mesialization
  • Intrusion
  • Leveling Curve of Spee
  • Extraction
  • Retraction
  • Other extraction
  • Space Closure
  • Elastics: Class II
  • Power ridge feature (G3) on Buccal 1.1 (UR1), Lingual 1.1 (UR1), Buccal 4.1 (LR1), Buccal 3.2 (LL2)
  • Optimized root control attachments (G4) on Buccal 1.4 (UR4), Buccal 2.4 (UL4), Buccal 4.3 (LR3), Buccal 3.3 (LL3)
  • Power arm (G6) on Buccal 1.3 (UR3), Buccal 2.3 (UL3), Buccal 4.5 (LR5), Buccal 3.5 (LL5)
Courtesy of Dr. X. Zhang 2019

Photos

Click to compare enlarged
upper
Initial
lower
right
front
left
Click to compare enlarged
upper
Final
lower
right
front
left

Radiographs

ClinCheck treatment plan

video anterior
video right-left
video upper-lower
Download ADF files
Initial
Additional Aligners

Treatment summary

Results Achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Deepbite improved
  • Overjet improved
  • Midlines coincident
  • 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

Total treatment Time

  • 34 months

Number of aligners

  • Maxillary: 60 + 15 = 75
  • Mandibular: 49 + 15 = 64

Aligner wear time

  • 2-weeks

Comments

  • Upper molars distalization used to correct the dental class II relationship simultaneously correction the molar crossbite
  • Class II elastics were applied during the whole treatment to offer anchorage for upper distalization and assistance of lower molar' mesialization
  • After aligner 25 we placed buttons on the lingual surfaces of teeth 1.4, 2.4,  3.7 and 4.7 to help correct the rotation of teeth 1.4 and 2.4

Retention

  • Maxillary:
  • Mandibular: