Class II div 2
,
Mandibular retrognathia
,
Deepbite
,
Maxillary midline deviation
,
Crowding
,
Impacted canines

Mandibular advancement
,
Leveling curve of Spee
,
Expansion

Treatment information

  • Age: 9
  • Gender: male
  • Invisalign Treatment Option: Invisalign Teen with MA

Diagnostic Summary

  • Class II div 2
  • Mandibular advancement
  • Mandibular retrognathia
  • Deepbite
  • Maxillary midline deviation
  • Crowding
  • Impacted canines

Use of:

  • Expansion
  • Leveling Curve of Spee
  • Optimized rotation attachment (G3) on Buccal 4.3 (LR3)
  • Power ridge feature (G3) on Buccal 3.1 (LL1)
  • Optimized support attachment on upper laterals (G7) on Buccal 2.2 (UL2)
  • Precision wings (MA)
Courtesy of Dr W. Zhang 2019

Photos

Click to compare enlarged
upper
Initial
lower
right
front
left
Click to compare enlarged
upper
Final
lower
right
front
left
Click to compare enlarged
upper
Progress
lower
right
front
left

Radiographs

ClinCheck treatment plan

video anterior
video right-left
video upper-lower
Download ADF files
Initial
Additional Aligners

Treatment summary

Results Achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal¬† overjet and overbite achieved
  • Midlines coincident
  • Proper axial inclination of incisors
  • Curve of Spee leveled
  • Arches aligned and coordinated
  • Aesthetic smile line¬†was achieved
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Total treatment Time

  • 19 months

Number of aligners

  • Maxillary: 57 + 27 = 84
  • Mandibular: 57 + 27 = 84

Aligner wear time

  • 1-week

Comments

  • Due to the use of the Precision Wings feature we successfully treated this case of class II division 1.
  • In phase I we focused on the mandible growth with the use of the Precision Wings feature
  • In 14 months we successfully expanded the upper arch
  • The impacted canines of the upper jaw erupted successfully, the mandible grew forward and we achieved a class I molar relationship
  • In phase II we aligned both arches and achieved a perfect Class I occlusion .