Class II div 1
,
Increased overjet
,
Mandibular retrognathia
,
Deep bite
,
Narrow arches
,
Asymmetric arches
,
Midline shift
,
Crowding

Leveling Curve of Spee
,
Expansion
,
Elastics: Class II in Additional Aligners
Courtesy of Dr S. Ahn, 2024
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 8
  • Gender: male
  • Invisalign Submission Option: Invisalign First

Total Treatment Time

  • 20 months

Number of aligners

  • Maxillary: 51 + 28 + 22 = 101
  • Mandibulary: 51 + 28 + 22 = 101

Aligner Wear time

  • 5days

Retention

  • Maxillary: Fixed/Bonded
  • Mandibular: Fixed/Bonded

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal  overjet and overbite achieved
  • Midlines coincident
  • Curve of Spee leveled
  • Arches aligned and coordinated
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • Leveling and alignment were completed after 4 months.
  • The patient's compliance was good, so the aligners were replaced every 5 days.
  • Growth stage analysis was performed at the time of applying MA using the Skeletal mutuality index by hand wrist X-rays (just before step 20).
  • Consequently, the MA was not performed because the ANB value was within the normal range at that moment.
  • This patient is currently undergoing periodic check-ups after aligner #19, and I plan to evaluate the futural necessity for MA.
  • A total of 2 refinements were performed.
  • The last refinement was performed after all permanent teeth (except 2nd molars) erupted.
  • After 20 months of treatment, the alignment was almost perfect.

Images

Initial and final

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Progress

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InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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