Class I
,
Anterior crossbite
,
Deep bite
,
Crowding

Leveling Curve of Spee
,
Intrusion
,
First premolar extraction
,
Elastics: Class II
,
Elastics: vertical
Courtesy of Dr H. Sik Park, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 30
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 30 months

Number of aligners

  • Maxillary: 35 + 43 + 27 = 105
  • Mandibulary: 35 + 43 + 33 = 111

Aligner Wear time

  • 1-week

Retention

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

Results achieved

  • Class I relationship maintained
  • Functional canine guidance on both sides
  • Anterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Deepbite improved
  • Overjet improved
  • Significant improvement of overbite
  • Significant improvement of overjet
  • Midlines coincident
  • Proper axial inclination of incisors
  • Curve of Spee leveled
  • Arches aligned and coordinated
  • Arch form improved

Comments

  • By 4 premolar extractions, severe crowding had to be solved.
  • Deep bite and Curve were relieved by the intrusion of lower incisors and extrusion of premolars.
  • To overcome posterior open bite, we used up-down elastics.
  • Class II elastics were used for molar key correction
  • Conventional horizontal attachment was used for extraction space closure without tipping.

Images

Initial and final

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upper
lower
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front
left
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lower
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front
left

Progress

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lower
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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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