Class I
,
Mandibular retrognathia
,
Narrow arches
,
Crowding
,
Rotations

Leveling Curve of Spee
,
Intrusion
,
Expansion
,
First premolar extraction
,
Elastics: Class II
,
Extraction
Courtesy of Dr L. Kim Dung, 2023
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 32
  • Gender: female
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 23 months

Number of aligners

  • Maxillary: 73 + 34 + 7 = 114
  • Mandibulary: 73 + 16 + 7 = 96

Aligner Wear time

  • 10 days

Retention

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

Results achieved

  • Class I relationship achieved
  • Class I relationship maintained
  • Normal  overjet and overbite achieved
  • Proper axial inclination of incisors
  • Curve of Spee leveled
  • Arches aligned and coordinated
  • Alignment of both arches through derotation
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • For this protrusion profile case, we extracted four 1st premolars to retract the anterior teeth.
  • We did maximum anchorage of molars and staging retraction of the anterior teeth.
  • For the 1st additional aligner, we uprighted the posterior teeth and used sequential distalization to decrease the overjet and bite settling.
  • We also used class II elastic with the Additional Aligners.
  • With expansion of both arches, patient's buccal corridor was reduced. The result was a more esthetic smile arch and improved profile.

Images

Initial and final

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upper
lower
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front
left
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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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