Class III
,
Anterior crossbite

Expansion
,
Phase I treatment / Interceptive

Treatment information

  • Age: 8
  • Gender: female
  • Invisalign Treatment Option: Teen

Diagnostic Summary

  • Class III relationship
  • Anterior Crossbite

Use of:

  • Expansion
  • Phase I treatment / Interceptive
  • Power Ridge Feature on Buccal 1.1 (UR1), Buccal 4.2 (LR2), Buccal 3.2 (LL2)
Courtesy of Dr. S. Meuli   2017

Photos

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

Radiographs

ClinCheck treatment plan

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

Treatment summary

Results Achieved

  • Class I relationship achieved
  • Anterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Arches aligned and coordinated
  • Aesthetic smile line was achieved
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Total treatment Time

  • 7 months

Number of aligners

  • Maxillary: 20
  • Mandibular: 28

Aligner wear time

  • 1-week

Comments

  • At the end of treatment the anterior crossbite has been corrected, the overjet and overbite were in normal values.
  • The author obtained little skeletal improvements, as Witts value from -7mm to -3mm; the final values were: SNA 83°, SNB 81°, ANB 2°. The mandibular angle at the beginning of treatment was 30°, after treatment it was 28°.
  • The best results were the correct inclination of lower and upper incisors: Sup/SN from 103° to 110°; Inf/ML from 92° to 87°.

Retention

  • Maxillary: Invisalign Aligner
  • Mandibular: Invisalign Aligner