Class II div 2
,
Deep bite
,
Crowding

Mandibular advancement
,
First premolar extraction
,
Elastics: Class II in Additional Aligners
,
Extraction
Courtesy of Dr Z. Chenwan, 2020
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 13
  • Gender: female
  • Invisalign Submission Option: Invisalign Teen

Total Treatment Time

  • 26 months

Number of aligners

  • Maxillary: 33 + 36 + 13 = 82
  • Mandibulary: 61 + 40 + 21 = 122

Retention

  • Maxillary: Hawley
  • Mandibular: Hawley

Results achieved

  • Class I relationship achieved
  • Deepbite improved
  • Significant improvement of overbite
  • Midlines coincident
  • Curve of Spee leveled

Comments

In order to prevent the dislocation of the braces, I gave up the initial invisalign treatment after the extraction of the four first premolars。Without wearing any orthopedic device, it taked advantage of the growth advantage of teenagers to automatically align teeth.Half a year later we started a refinement to continue to align teeth and close the tooth extraction gap.

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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