Class II div 1
,
Anterior crossbite
,
Narrow arches
,
Asymmetric arches
,
Maxillary midline deviation
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Rotations

Distalization
,
Leveling Curve of Spee
,
Extrusion
,
Intrusion
,
Expansion
,
Other extraction
,
Elastics: Class II
Courtesy of Dr K. Fei Fong, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 28
  • Gender: female
  • Invisalign Treatment Option: Invisalign Comprehensive

Total Treatment Time

  • 11 months

Number of aligners

  • Maxillary: 26 + 16 = 42
  • Mandibulary: 26 + 16 = 42

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Anterior crossbite corrected
  • 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

  • The challenging movement, in this case, is extrusion and buccal movement of tooth 12.
  • 12 was off track in the first treatment and additional aligner. It was settled by using button elastics and horizontal conventional attachment.
  • The patient's compliance was great.
  • Since this was a mild Class II occlusion, Class II elastics only used at night at the beginning of treatment to achieve Class I molar relationship.

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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lower
right
front
left
InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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