Class II div 1
,
Crowding

Elastics: Class II
,
Retraction
,
First premolar extraction
,
Other extraction
,
IPR
,
TADs
Courtesy of Dr. S. Zou, 2019
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 22
  • Gender: female
  • Invisalign Treatment Option: Invisalign Teen

Total Treatment Time

  • 26 months

Number of aligners

  • Maxillary: 46 + 19 = 65
  • Mandibulary: 46 + 14 = 60

Aligner Wear time

  • 1-week

Retention

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

Results achieved

  • Class I relationship achieved
  • Curve of Spee leveled
  • Arches aligned and coordinated
  • Arch form improved
  • Aesthetic smile linewas achieved

Comments

  • TADs were used from stage 34 on the upper left and upper right side
  • From stage 27 we used power arms on the lower canines and the lower first molars
  • A little IPR on the lower anterior teeth improved the Bolton discrepancy
  • Aligners were changed every 10 days with a few exceptions where we changed after 7 days
  • The protrusion profile improved after treatment

Images

Initial and final

InitialFinal
Before picture of treatment
After picture of treatment
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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

Radiographs

Initial Final
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