Class III
,
Anterior crossbite
,
Mandibular midline deviation
,
Midline shift
,
Crowding

Distalization
,
Leveling Curve of Spee
,
Intrusion
,
Proclination
,
Elastics: Class III
Courtesy of Dr C. Chun Tsai, 2022
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 13
  • Gender: male
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 21 months

Number of aligners

  • Maxillary: 42 + 18 = 60
  • Mandibulary: 42 + 18 = 60

Retention

  • Maxillary: Fixed/Bonded
  • Mandibular: Other clear

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Anterior crossbite corrected
  • 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

This was a difficult case:

  • Male teenager with growth potential, skeletal class III with only a small amount of functional shift.
  • Besides leveling and relief crowding, I planned a horizontal and anteroposterior jump in clincheck,
  • That was achieved by excellent prediction of mandible displacement (functional shift) and excellent simulation in clincheck.
  • By using U6 to L4 Class III elastic, we achieved an excellent treatment result.
  • In anterior crossbite cases, Invisalign acts as an excellent bite raiser, and with the help of patient's compliance, we can easily achieve
    good outcomes.

Images

Initial and final

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Progress

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InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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