Class II div 1
,
Increased overjet
,
Mandibular retrognathia
,
Deep bite
,
Narrow arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Spacing

Mandibular advancement
,
Distalization
,
Leveling Curve of Spee
,
Intrusion
,
Expansion
,
Retraction
,
IPR
,
Elastics: Class III
Courtesy of Dr Q. Chen, 2023
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 12
  • Gender: female
  • Invisalign Submission Option: Invisalign Teen

Total Treatment Time

  • 27 months

Number of aligners

  • Maxillary: 53 + 23 + 24 = 100
  • Mandibulary: 56 + 23 + 24 = 103

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Fixed/Bonded
  • Mandibular: Fixed/Bonded

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal  overjet and overbite achieved
  • Deepbite improved
  • Overjet improved
  • Significant improvement of overbite
  • Midlines coincident
  • Proper axial inclination of incisors
  • Curve of Spee leveled
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • Invisalign is good for molar distalization and intrusion of lower front teeth.
  • The upper posterior teeth were distally moved by 1mm.
  • Class II elastics were used in the first phase and MA was used in the next two phases to correct mandibular retrognathia and help retract upper incisors.
  • The upper and lower arches were expanded by 1mm per side at the posterior and canine areas.
  • The lip posture was much better after correction of deep bite and retraction of upper front teeth.

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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