Class II div 1
,
Edge to edge bite
,
Increased overjet
,
Deep bite
,
Narrow arches
,
Asymmetric arches

Distalization
,
Intrusion
,
Retraction
,
Other extraction
,
Elastics: Class II
Courtesy of Dr D. Yutong, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 24
  • Gender: male
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 22 months

Number of aligners

  • Maxillary: 78 + 16 = 94
  • Mandibulary: 29 + 16 = 45

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Hawley
  • Mandibular: Hawley

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
  • Alignment of both arches through derotation
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • We planned to extract the third molars in the upper arch to create space for the distalization of the other molars, in order to change the molar relationship into Class I.
  • Class II elastics were used in all stages of the treatment to offer anchorage for upper distalization.
  • To correct the dental class II relationship, we distalized the upper molars to simultaneously correct the molar crossbite (17 27 37 47).
  • The overbite was solved with anterior intrusion and the projection of the canines inferiors helped in the correction of the relation of canine class.
  • The third molars in the lower arch were extracted as well for better posterior stability and predictability of the arch expansion.

Images

Initial and final

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lower
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front
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Progress

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lower
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InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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