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

Distalization
,
Leveling Curve of Spee
,
Intrusion
,
Retraction
,
First premolar extraction
,
IPR
,
Extraction
Courtesy of Dr J. Weng, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 18
  • Gender: male
  • Invisalign Treatment Option: Invisalign Teen

Total Treatment Time

  • 20 months

Number of aligners

  • Maxillary: 45 + 15 = 60
  • Mandibulary: 33 + 10 = 43

Aligner Wear time

  • 10 days

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class II relationship maintained
  • 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

  • This was an extraction case with 14/24/38/48 extracted.
  • I design maxillary strong anchorage to retract anterior teeth, and upper molars' mesial movement is controlled less than 2 mm.
  • In mandibular dentition, I design lower molar distalization for about 2mm to retract lower incisors and reduce the inclination of lower incisors.
  • Two mini-screws were used in the maxillary posterior region to enhance maxillary anchorage and help retract lower incisors.
  • Elastic traction is used between maxillary mini-screws and lower canines' precision cuts of lower align.

Images

Initial and final

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upper
lower
right
front
left
front
left

Progress

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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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