Class I
,
Midline shift
,
Crowding
,
Rotations

Leveling curve of Spee
,
Retraction
,
First premolar extraction
,
Space Closure

Treatment information

  • Age: 23
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Diagnostic Summary

  • Class I
  • Midline shift
  • Crowding
  • Rotations

Use of:

  • Leveling Curve of Spee
  • Extraction
  • Retraction
  • First Premolar extraction
  • Space Closure
  • Conventional bite ramp on Lingual 1.1 (UR1), Lingual 1.2 (UR2), Lingual 2.1 (UL1), Lingual 2.2 (UL2)
  • First premolar extraction solution for maximum anchorage (G6) on Buccal 1.3 (UR3), Buccal 1.5 (UR5), Buccal 1.6 (UR6), Buccal 1.7 (UR7), Buccal 2.3 (UL3), Buccal 2.5 (UL5), Buccal 2.6 (UL6), Buccal 2.7 (UL7), Buccal 4.3 (LR3), Buccal 4.5 (LR5), Buccal 4.6 (LR6), Buccal 4.7 (LR7), Buccal 3.3 (LL3), Buccal 3.5 (LL5), Buccal 3.6 (LL6), Buccal 3.7 (LL7)
Courtesy of Dr W. Zhang 2019

Photos

Click to compare enlarged
upper
Initial
lower
right
front
left
Click to compare enlarged
upper
Final
lower
right
front
left
Click to compare enlarged
upper
Progress
lower
right
front
left

Radiographs

ClinCheck treatment plan

video anterior
video right-left
video upper-lower
Download ADF files
Initial
Additional Aligners

Treatment summary

Results Achieved

  • Class I relationship maintained
  • Functional canine guidance on both sides
  • Normal¬† overjet and overbite achieved
  • 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 line¬†was achieved
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Total treatment Time

  • 16 months

Number of aligners

  • Maxillary: 45 + 24 = 69
  • Mandibular: 45 + 24 = 69

Aligner wear time

  • 1-week

Comments

  • Due to the use of G6 attachments in four quadrants, we successfully treated a bimaxillary protrusion case with the extraction of the four first premolars.
  • We were able to control a parallel move of the roots, and leveled the Spee curve successfully