Class III
,
Posterior crossbite
,
Crowding

Expansion
,
Proclination

Treatment information

  • Age: 9
  • Gender: male
  • Invisalign Treatment Option: Invisalign First

Diagnostic Summary

  • Class III
  • Posterior crossbite
  • Crowding

Use of:

  • Expansion
  • Proclination
  • Optimized extrusion attachment (G3) on Buccal 1.2 (UR2), Lingual 1.1 (UR1), Buccal 2.1 (UL1), Buccal 2.2 (UL2)
  • Optimized root control attachments (G4) on Buccal 1.1 (UR1)
  • Optimized retention attachment (Phase 1) on Buccal 3.6 (LL6)
  • Optimized expansion support attachment (Phase 1) on Buccal 1.6 (UR6), Buccal 2.6 (UL6), Buccal 4.5 (LR5), Buccal 4.6 (LR6), Buccal 1.e (URe), Buccal 2.e (ULe), Buccal 4.d (LRd)
Courtesy of Dr. O. Crotty 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

  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Arches aligned and coordinated
  • Alignment of both arches through derotation
  • Arch form improved
  • Aesthetic smile line was achieved

Total treatment Time

  • 13 months

Number of aligners

  • Maxillary: 32 + 29 = 61
  • Mandibular: 32 + 29 = 61

Comments

  • After U:32+28 and L:24+28 Invisalign First aligners, the anterior crossbite, posterior crossbite, narrow upper arch, and crowding were all corrected
  • Adequate space prepared for the permanent upper canines and the gingival health around the lower left central incisor was stabilized
  • Good aligner wear compliance and oral hygiene were maintained throughout Phase 1 treatment
  • The Phase 1 treatment time was 13 months, not including the pre-treatment eruption monitoring and passive vacuformed appliance phase. Note: This extra step is not needed in patients who do not require an acclimation phase due to the medical condition.
  • The final photos show the dentition 12-months post Phase I treatment
  • The goals for Phase 2 are to close the remaining lower spaces, extrude the upper left canine, and de-rotate the premolars
  • while maintaining a Class 1 bite relationship.

Retention

  • Maxillary: Invisalign aligner
  • Mandibular: Invisalign aligner

Publication


Invisalign First case report
English 2019

Dr. Owen Crotty