Class III
,
Mandibular retrognathia
,
Deepbite
,
Narrow arches
,
Posterior crossbite
,
Asymmetric arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Rotations

Elastics: Class II
,
Leveling curve of Spee
,
Intrusion
,
Expansion
,
Retraction
,
Proclination
,
First premolar extraction
,
Lower incisor extraction
,
IPR

Treatment information

  • Age: 20
  • Gender: female
  • Invisalign Treatment Option: Invisalign Full

Diagnostic Summary

  • Class III
  • Mandibular retrognathia
  • Deepbite
  • Narrow arches
  • Posterior crossbite
  • Asymmetric arches
  • Mandibular midline deviation
  • Midline shift
  • Crowding
  • Rotations

Use of:

  • Expansion
  • Intrusion
  • Leveling Curve of Spee
  • Proclination
  • Extraction
  • Retraction
  • Lower incisor extraction
  • First Premolar extraction
  • IPR
  • Elastics: Class II
  • Optimized rotation attachment (G3) on Buccal 4.4 (LR4), Buccal 4.5 (LR5)
  • Power ridge feature (G3) on Buccal 1.1 (UR1), Lingual 1.1 (UR1), Buccal 2.1 (UL1), Lingual 2.1 (UL1)
  • Optimized root control attachments (G4) on Buccal 1.2 (UR2), Buccal 1.3 (UR3), Buccal 1.4 (UR4), Buccal 2.3 (UL3), Buccal 2.4 (UL4)
  • Optimized deepbite attachments for anchorage (G5) on Buccal 3.5 (LL5)
Courtesy of Dr. J. Xiao 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

Treatment summary

Results Achieved

  • Class I relationship achieved
  • Posterior crossbite corrected
  • Normal¬† overjet and overbite achieved
  • Deepbite improved
  • 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

  • 27 months

Number of aligners

  • Maxillary: 56
  • Mandibular: 56

Aligner wear time

  • 2-weeks

Comments

  • This case was challenging because of the deep overbite with upper anterior retro-inclination and crowding
  • The upper second premolars were extracted to resolve the crowding, and retraction for an improved profile
  • We chose to extract lower fused tooth of 32/33 and mandibular bicuspid to bicuspid IPR
  • Class II elastics were used in order to protect the maxillary anchorage and help to achieve the maxillary strongest anchorage
  • The whole orthodontic process was smooth and successful with no need for additional aligners

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear