Class II div 1
,
Posterior crossbite
,
Narrow arches
,
Asymmetric arches
,
Mandibular midline deviation
,
Crowding
,
Rotations

Leveling Curve of Spee
,
Expansion
,
Lower incisor extraction
,
Other extraction
,
IPR
,
Elastics: vertical
Courtesy of Dr D. She, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 27
  • Gender: female
  • Invisalign Submission Option: Invisalign Full

Total Treatment Time

  • 25 months

Number of aligners

  • Maxillary: 49 + 28 + 12 = 89
  • Mandibulary: 49 + 16 + 10 = 75

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Vivera retainer
  • Mandibular: Vivera retainer

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal  overjet and overbite achieved
  • 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

  • Aligned teeth after treatment
  • Achieved class I molar and canine relationship by upper posteriors distalization
  • Used large amount of IPRs in upper anteriors to coordinate the Bolton ratio of the anterior teeth
  • No anchorage screws or brackets were used during the treatment
  • Used vertical traction to extrude 18、28 to replaced 17、27 and achieved normal occlusion
  • The course of treatment was 25 months

Images

Initial and final

Click to compare enlarged
upper
lower
right
front
left
Click to compare enlarged
upper
lower
right
front
left

Progress

Click to compare enlarged
upper
lower
right
front
left
InitialFinal
Before picture of treatment
After picture of treatment
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged

Radiographs

Initial Final
Click to compare enlarged316
Click to compare enlarged310