Class III
,
Posterior crossbite
,
Anterior crossbite
,
Narrow arches
,
Asymmetric arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Rotations

Distalization
,
Mesialization
,
Leveling Curve of Spee
,
Intrusion
,
Expansion
,
Retraction
,
First premolar extraction
,
Other extraction
,
Space Closure
,
TADs
,
Elastics: vertical
,
Extraction
Courtesy of Dr D. Sun, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 29
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 30 months

Number of aligners

  • Maxillary: 81 + 40 = 121
  • Mandibulary: 81 + 40 = 121

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other
  • Mandibular: Other

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Anterior crossbite corrected
  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Overjet improved
  • Significant improvement of overjet
  • 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

1. Retract lower anterior teeth to correct crossbite by distalization
2. Align upper arch and correct midline by upper right distalization,achieve Class Ⅰ relationship of right canines and first molars
3. Extract lingual 25 and close space by mesialization of 26 and 27 to achieve Class Ⅰ relationship of left canines,design paired attachments and overcorrection to control tipping of posterior teeth
4. Improve tight occlusion by bilateral vertical elastic
5. Use 5mm horizontal rectangular attachments on 16、26、27、46 to improve retention

Images

Initial and final

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

Initial Final
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