Class II div 1
,
Increased overjet
,
Mandibular retrognathia
,
Crowding

Mesialization
,
Retraction
,
First premolar extraction
,
Elastics: Class II
,
Extraction
Courtesy of Dr Y. Tai, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 19
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 22 months

Number of aligners

  • Maxillary: 86
  • Mandibulary: 86

Aligner Wear time

  • 1-week

Retention

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

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal  overjet and overbite achieved
  • Overjet improved
  • Significant improvement of overjet
  • 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

In this case, upper frog-pattern retraction and lower molar sequential mesialization was applied to increase anchorage.
As for incisors inclination, the over-treatment proclination was applied for both arches.
And most important of all, the patient was very compliant to all the instructions, and the clinical crowns were long enough for the aligners to grabbed the teeth and expressed force mechanism.

Images

Initial and final

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upper
lower
right
front
left

Progress

lower
front
left
InitialFinal
Before picture of treatment
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Radiographs

Initial
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