Class I
,
Mandibular midline deviation
,
Crowding

Leveling Curve of Spee
,
First premolar extraction
Courtesy of Dr J. WENG, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 18
  • Gender: female
  • Invisalign Treatment Option: Invisalign Teen

Total Treatment Time

  • 26 months

Number of aligners

  • Maxillary: 55 + 23 = 78
  • Mandibulary: 55 + 23 = 78

Aligner Wear time

  • 10天

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class I relationship maintained
  • Functional canine guidance on both sides
  • 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

1. G6 is good for first premolar extraction cases, because it can do a good job on upper molar anchorage control and upper incisor torque control.
2. G5 attachment is good for Spee curve leveling and anterior overbite control on first premolar extraction cases.
3.For moderate anchorage cases, I narrow the arch width but not design molar mesialization on Clincheck.

Images

Initial and final

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upper
lower
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left
lower
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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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