Class II div 2
,
Mandibular retrognathia
,
Deep bite
,
Narrow arches

Distalization
,
Leveling Curve of Spee
,
Intrusion
,
Expansion
,
Retraction
,
Overtreatment
,
Elastics: Class II in Additional Aligners
Courtesy of Dr P. Liu, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 11
  • Gender: female
  • Invisalign Submission Option: Invisalign Teen

Total Treatment Time

  • 26 months

Number of aligners

  • Maxillary: 40 + 52 + 15 = 107
  • Mandibulary: 23 + 16 + 7 = 46

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal  overjet and overbite achieved
  • Midlines coincident
  • Proper axial inclination of incisors
  • 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

  • Correct the deflection occlusal plane.
  • Improve the smiling line.
  • While upper molars distalize, upper anterior teeth perform lingual root torque about 12 degrees before intrusion.
  • This teeth movement process can better protect anterior teeth labial bone of class II div 2.

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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