Class I
,
Anterior crossbite
,
Edge to edge bite
,
Narrow arches
,
Asymmetric arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding

Expansion
,
IPR
Courtesy of Dr S. Ahn, 2023
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 28
  • Gender: male
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 13 months

Number of aligners

  • Maxillary: 31 + 27 = 58
  • Mandibulary: 31 + 27 = 58

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Vivera retainer
  • Mandibular: Vivera retainer

Results achieved

  • Class I relationship maintained
  • Functional canine guidance on both sides
  • Anterior crossbite corrected
  • Significant improvement of overbite
  • Significant improvement of overjet
  • Midlines coincident
  • Proper axial inclination of incisors
  • 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

  • Applying an asymmetric force differently to the right and left is a very complex technique. Invisalign system can apply this precisely in Clincheck software.
  • In this treatment, when I created the Clincheck treatment plan, I created a cusp-to-cusp relationship on the right and a large buccal overjet on the left.
  • By planning a differential movement of the molars on the left and right, I was able to achieve a good result.
  • Despite the severe skeletal asymmetry, I was able to create a correct midline and stable molar occlusion.
  • This did not require any TADs, TPAs, or other devices. Only the Invisalign treatment was sufficient.

Images

Initial and final

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upper
lower
right
front
left
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upper
lower
right
front
left

Progress

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upper
lower
right
front
left
InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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