Class II div 2
,
Posterior crossbite
,
Increased overjet
,
Mandibular retrognathia
,
Deep bite
,
Narrow arches
,
Crowding

Mandibular advancement
,
Distalization
,
Leveling Curve of Spee
,
Intrusion
,
Expansion
,
Retraction
,
Elastics: Class II
Courtesy of Dr T. Xu, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 14
  • Gender: male
  • Invisalign Treatment Option: Invisalign Teen with MA

Total Treatment Time

  • 36 months

Number of aligners

  • Maxillary: 42 + 14 + 44 = 100
  • Mandibulary: 42 + 14 + 20 = 76

Aligner Wear time

  • 10days

Retention

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

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Significant improvement of overbite
  • Significant improvement of overjet
  • Midlines coincident
  • Curve of Spee leveled
  • Arches aligned and coordinated
  • Alignment of both arches through derotation
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  •  Pre -MA stage: Align upper and lower teeth via expansion; Interactive elastics to correct second molars crossbite; lower incisors proclined to improve anterior deep bite.
  • MA stage: Mandibular advancement with class II elastics 4.5oz 3/4.
  • Sequential distalize upper molars to retract upper incisors;
    Improve deep bite: Lingual roots torque upper and lower incisors first, then sequential intrude upper and lower anterior; extrude lower premolars
  • Upper and lower fixed and Hawley's retainers for double retention

Images

Initial and final

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upper
lower
right
front
left
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upper
lower
right
front
left

Progress

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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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