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

Distalization
,
Leveling Curve of Spee
,
Extrusion
,
Intrusion
,
Expansion
,
Retraction
,
IPR
,
Elastics: Class II
Courtesy of Dr Q. Chen, 2024
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 14
  • Gender: male
  • Invisalign Submission Option: Invisalign Express

Total Treatment Time

  • 13 months

Number of aligners

  • Maxillary: 36 + 13 = 49
  • Mandibulary: 39 + 16 = 55

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
  • Significant improvement of overjet
  • Midlines coincident
  • Proper axial inclination of incisors
  • Arch form improved

Comments

  • The upper molars were distally moved by 1 mm.
  • The upper front teeth were retracted by 4.5 mm.
  • Class II elastics were used to enhance maxillary anchorage and help retract upper incisors.
  • No black triangles were visible after lower front teeth retraction and IPR.
  • Molar and canine relationships were both adjusted by bite jumping effect.

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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