Class III
,
Posterior crossbite
,
Anterior crossbite
,
Deep bite
,
Midline shift
,
Crowding
,
Rotations

Distalization
,
Extrusion
,
Intrusion
,
Expansion
,
Proclination
,
IPR
,
Elastics: Class III
Courtesy of Dr. S. Chieh Lin, 2017
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 17
  • Gender: female
  • Invisalign Treatment Option: Full

Total Treatment Time

  • 23 months

Number of aligners

  • Maxillary: 40 + 20 = 60
  • Mandibulary: 40 + 20 = 60

Aligner Wear time

  • 10 days

Retention

  • Maxillary: Vivera
  • Mandibular: Vivera

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Anterior crossbite corrected
  • Posterior crossbite corrected
  • Normal overjet and overbite achieved
  • Deepbite improved
  • Significant improvement ofoverbite
  • Midlines coincident
  • Proper axial inclination of incisors
  • Curve of Spee levelled
  • Arches aligned and coordinated
  • Alignment of both arches through derotation
  • Arch form improved
  • Aesthetic smile linewas achieved
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • This is a severe Class III and facial asymmetry case.
  • She has asymmetrical arch form and crowding over both arch.
  • The most difficult problem in this case is to correct Class III to Class I, and I design stage distalization over Q3.
  • With compliance of Class III elastic usage , Class III and midline are corrected.
  • The Scissorbite is corrected by arch form development by aligners.
  • Anterior X-bite is corrected by proclined upper and lower retraction.

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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