Class II div 1
,
Increased overjet
,
Mandibular retrognathia
,
Narrow arches
,
Posterior crossbite
,
Crowding
,
Rotations

First premolar extraction
,
Elastics: Class II
,
Leveling curve of Spee
,
Retraction

Treatment information

  • Age: 14
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Diagnostic Summary

  • Class II div 1
  • Increased overjet
  • Mandibular retrognathia
  • Narrow arches
  • Posterior crossbite
  • Crowding
  • Rotations

Use of:

  • Leveling Curve of Spee
  • Retraction
  • First Premolar extraction
  • Elastics: Class II
  • Optimized rotation attachment (G3) on Buccal 4.4 (LR4), Buccal 3.5 (LL5)
  • Power ridge feature (G3) on Lingual 1.1 (UR1), Lingual 1.2 (UR2), Lingual 2.1 (UL1), Lingual 2.2 (UL2)
  • Optimized root control attachments (G4) on Buccal 2.4 (UL4)
  • Optimized deepbite attachments for anchorage (G5) on Buccal 4.5 (LR5), Buccal 3.4 (LL4)
Courtesy of Dr. Y. Shiohama 2019

Photos

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

Radiographs

ClinCheck treatment plan

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

Treatment summary

Results Achieved

  • Class II relationship maintained
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Overjet improved
  • Significant improvement of overjet
  • Proper axial inclination of incisors
  • Arches aligned and coordinated
  • Arch form improved
  • Aesthetic smile line was achieved
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Total treatment Time

  • 19 months

Number of aligners

  • Maxillary: 37
  • Mandibular: 37

Aligner wear time

  • 2-weeks

Comments

  • To correct the severe overjet we extracted the upper First Premolars and then retracted the upper anterior with Class II elastics
  • To correct 7's scissor bite on both right and left sides we moved the upper 7 to lingual side with a strong torque on the lingual crown
  • Lower 7 raised up with Crown labial torque
  • We prefer to correct this in an early stage
  • We resolved the lower crowding by labial inclination of  the anterior teeth
  • Curve of Spee leveled by Both Canine Intrusion and labial inclination of anterior teeth

Retention

  • Maxillary: Vivera
  • Mandibular: Vivera