Class III
,
Posterior crossbite
,
Anterior crossbite
,
Open bite
,
Narrow arches
,
Asymmetric arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Rotations
,
Spacing
,
Pre-restorative

Distalization
,
Leveling curve of Spee
,
Extrusion
,
Expansion
,
Retraction
,
Proclination
,
Space Closure
,
Elastics: Class III
Courtesy of Dr. S. Chieh Lin, 2019
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 21
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Total Treatment Time

  • 21 months

Number of aligners

  • Maxillary: 45 + 10 + 8 = 63
  • Mandibulary: 45 + 17 + 12 = 74

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Hawley
  • Mandibular: Hawley

Results achieved

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

Comments

  • This is a skeletal Class III mandibular prognathism with anterior crossbite case.
  • Although the patient is missing two congenital lower incisors, she also has a larger size 4.3
  • The Treatment plan was to retract the lower teeth by space closure and proline upper teeth to correct the anterior crossbite and open bite
  • Rotational 3.5 and the posterior crossbite were also corrected at the end of the treatment
  • This patient had severe decalcification from the beginning this is a very good indication to prefer Invisalign treatment instead of conventional treatment as oral hygiene is difficult to maintain during conventional treatment

Images

Initial and final

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upper
lower
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front
left
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upper
lower
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front
left

Progress

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lower
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InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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