Class I
,
Anterior crossbite
,
Deep bite
,
Narrow arches
,
Midline shift
,
Crowding

Expansion
Courtesy of Dr R. Lie, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 7
  • Gender: female
  • Invisalign Treatment Option: Invisalign First

Total Treatment Time

  • 5 months

Number of aligners

  • Maxillary: 24
  • Mandibulary: 24

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other Clear
  • Mandibular: Other Clear

Results achieved

  • Alignment of both arches through derotation
  • Arch expansion achieved
  • Arch form improved
  • Arches aligned and coordinated
  • Functional overjet and overbite
  • Harmonic arches were achieved
  • Midlines coincident

Comments

  • Correction of the malocclusion was achieved mainly through expansion of the maxillary and mandibular buccal segments.
  • The first permanent molars were rotated mesial outward, while the deciduous molars were expanded bodily.
  • The expansion was performed sequentially starting with rotation first permanent molars and followed by bodily expansion. This protocol is to ensure good anchorage control.
  • The crossbite was corrected by proclining the upper incisors.
  • Spaces, equal to the size of the deciduous canines, were maintained.

Images

Initial and final

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upper
lower
right
front
left
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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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