Class II div 1
,
Mandibular retrognathia
,
Narrow arches

Expansion
,
IPR
,
Pre-surgical
Courtesy of Dr. C. Carvalho, 2020
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 26
  • Gender: female
  • Invisalign Treatment Option: Invisalign Comprehensive

Total Treatment Time

  • 4 months

Number of aligners

  • Maxillary: 12
  • Mandibulary: 12

Aligner Wear time

  • 10 days

Retention

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

Results achieved

  • Class I relationship achieved
  • Normal  overjet and overbite achieved
  • Significant improvement of overbite
  • Significant improvement of overjet

Comments

  • The patient had a class II due to mandibular retraction
  • As the patient is an adult, the case became surgical.
  • In orthodontic treatment, I performed IPR on lower incisors to align and gain normal overjet to expand the mandible
  • In addition, the impact on the maxilla, made us gain more overjet to expand the mandible and rotate counterclockwise
  • I used Class III elastic on both sides to make lower incisor movements more predictable

Images

Initial and final

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upper
lower
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front
left
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upper
lower
right
front
left

Progress

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

Initial Final
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