Class II div 1
,
Posterior crossbite
,
Mandibular retrognathia
,
Deep bite
,
Narrow arches
,
Asymmetric arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Rotations
,
Pre-restorative

Mesialization
,
Leveling Curve of Spee
,
Extrusion
,
Intrusion
,
Expansion
,
Retraction
,
Proclination
,
First premolar extraction
,
Other extraction
,
IPR
,
Restorative
,
Elastics: Class II
,
Elastics: vertical
,
Extraction
Courtesy of Dr K. Fei Fong, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 30
  • Gender: male
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 21 months

Number of aligners

  • Maxillary: 45 + 15 = 60
  • Mandibulary: 61 + 15 = 76

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Deepbite improved
  • Significant improvement of overbite
  • 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 challenging case with many problems.
  • Vertical and Class II elastics helped vertical control, retraction, and molar mesialization.
  • Vertical conventional rectangular attachments helped root tip correction and control.
  •  There was no posterior open bite or bowing effect that occurred after the first treatment.
  • The old bridge was used as anchorage at the beginning of treatment, and only took apart 21 pontic while 11 and 22 started moving.

Images

Initial and final

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upper
lower
right
front
left
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lower
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front
left

Progress

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

Initial Final
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