Class II div 1
,
Increased overjet
,
Mandibular retrognathia
,
Mandibular midline deviation

Mandibular advancement
,
Pre Mandibular advancement phase
,
Distalization
,
Leveling Curve of Spee
,
Intrusion
,
Elastics: Class II in Additional Aligners
Courtesy of Dr L. Chen, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 10
  • Gender: female
  • Invisalign Submission Option: Invisalign Teen with MA

Total Treatment Time

  • 19 months

Number of aligners

  • Maxillary: 42 + 36 = 78
  • Mandibulary: 42 + 36 = 78

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

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

Comments

  • This is a 10-year-old female patient with mixed dentition and Class II malocclusion.
  • The examinations show a skeletal Class II sagittal relationship, retrusion of the maxillary incisors, increased overjet, and deep bite.
  • In the first stage, 12 sets of aligners were used for alignment and leveling of dentition to prepare for mandibular advancement.
  • The 13th-42nd sets of aligners effectively guided the mandibular advancement, which solved the problem of mandibular retraction.
  • In the second stage, class II elastics were used to maintain the molar relationship.
  • Class I molar relationship was successfully established, and the normal OBOJ was obtained in the anterior teeth.
  • We successfully improved the mandibular dental midline deviation, and improve facial and smile esthetics.

Images

Initial and final

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

Initial Final
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