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

Mesialization
,
Leveling Curve of Spee
,
Intrusion
,
Retraction
,
First premolar extraction
,
IPR
,
Restorative
,
Overtreatment
,
Extraction
Courtesy of Dr W. Chi Chiu, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 16
  • Gender: female
  • Invisalign Treatment Option: Invisalign Teen

Total Treatment Time

  • 24 months

Number of aligners

  • Maxillary: 60 + 38 = 98
  • Mandibulary: 60 + 38 = 98

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
  • 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

  • This is a 4 premolars extraction with maximum anchorage to correct anterior procumbency and bimaxillary protrusion.
  • Power arms were designed mesial and distal of the extraction sites for Class I elastics.
  • Intrusion was planned over the lower anterior incisors to help level the curve of Spee and is also programmed over the lower molars to maintain vertical control.
  • The facial change was dramatic after the treatment by extractions with maximum anchorage.

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 enlarged320
Click to compare enlarged310