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

Leveling Curve of Spee
,
Intrusion
,
Expansion
,
Proclination
,
Elastics: Class II
Courtesy of Dr S. Ahn, 2023
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 9
  • Gender: female
  • Invisalign Submission Option: Invisalign First

Total Treatment Time

  • 8 months

Number of aligners

  • Maxillary: 30 + 15 = 45
  • Mandibulary: 30 + 15 = 45

Aligner Wear time

  • 5days

Retention

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

Results achieved

  • Class I relationship achieved
  • Normal  overjet and overbite achieved
  • Deepbite improved
  • Significant improvement of overbite
  • Significant improvement of overjet
  • 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

  • Expansion of the maxillary and mandibular arches to create space and induce proclination of the lower incisors.
  • Class II elastic was used to arrange the upper incisors.
  • This process resulted in a deep bite and improved class II relationship.
  • At the end of the first set, we realized that the deep bite was still a bit lacking, so we created refinements. At the end of treatment, sufficient permanent tooth eruption space was achieved and fixed retainers were bonded to maintain the ideally aligned dentition.
  • Thanks to Invisalign FIRST, the alignment and spacing of the teeth were achieved in a very short period of time. With the previous resin plate device, it would have taken a long time, and been difficult to achieve such favorable results.
  • Even with braces, it was difficult to get enough space, so we thought that Invisalign was the best treatment for this case.

Images

Initial and final

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lower
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front
left
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lower
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front
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Progress

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lower
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InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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