Class I, Midline Shift, Posterior Crossbite, Rotations, Spacing

Expansion, Intrusion, Space Closure

Treatment Information

  • Age: 26
  • Gender: female
  • Invisalign Treatment Option: Lite

Diagnostic Summary

  • Class I relationship
  • Midline Shift
  • Posterior Crossbite
  • Mandibular midline deviation
  • Rotations
  • Spacing
  • Asymmetric arches

Use of:

  • Expansion
  • Intrusion
  • Space Closure
  • Optimized Root Control Attachments (G4) on Buccal 1.2 (UR2), Buccal 2.2 (UL2)
Courtesy of Dr S. chieh Lin 2017

Photos

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

ClinCheck Treatment Plan

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

Treatment Summary

Results Archieved

  • Class I relationship maintained
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal¬† overjet and overbite achieved
  • Proper axial inclination of incisors
  • Curve of Spee levelled
  • 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

  • 12 months

Number of aligners

  • Maxillary: 14 + 11 = 25
  • Mandibular: 14 + 11 = 25

Aligner wear time

  • 2-weeks

Comments

  • This is a difficult case treated with Lite option. There are only 28 aligners (with refinement) can use to achieve the treatment goal. The things we can learn from this case are as below:
    1. Stablize occlusion by lock all 4's 5's 6's(No movement by superimposition)
    2. Attachments design in scissorsbite correction, especially lingual attachments over 16263747.