Class I
,
Posterior crossbite
,
Asymmetric arches
,
Mandibular midline deviation
,
Midline shift
,
Rotations
,
Spacing

Intrusion
,
Expansion
,
Space Closure
Courtesy of Dr S. chieh Lin, 2017
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 26
  • Gender: female
  • Invisalign Treatment Option: Lite

Total Treatment Time

  • 12 months

Number of aligners

  • Maxillary: 14 + 11 = 25
  • Mandibulary: 14 + 11 = 25

Aligner Wear time

  • 2-weeks

Retention

  • Maxillary: Other Clear
  • Mandibular: Other Clear

Results achieved

  • Class I relationship maintained
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal overjet and overbite achieved
  • Proper axial inclination of incisors
  • Curve of Spee levelled
  • Arches aligned and coordinated
  • Alignment of both arches through derotation
  • Arch form improved
  • Aesthetic smile linewas achieved
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • This is a difficult case treated with Lite option. There are only 28 aligners (with refinement) can use to achieve the treatment goal. The things we can learn from this case are as below:
    1. Stablize occlusion by lock all 4's 5's 6's(No movement by superimposition)
    2. Attachments design in scissorsbite correction, especially lingual attachments over 16263747.

Images

Initial and final

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upper
lower
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front
left
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upper
lower
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front
left

Progress

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

Initial Final
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