Class III, Posterior crossbite, Anterior crossbite, Open bite, Narrow arches, Asymmetric arches, Mandibular midline deviation, Midline shift, Crowding, Rotations, Spacing, Pre-restorative
Distalization
, Leveling Curve of Spee
, Extrusion
, Expansion
, Retraction
, Proclination
, Space Closure
, Elastics: Class III
Courtesy of Dr. S. Chieh Lin,
2019
Treatment Summary
Patient Information
- Age: 21
- Gender: female
- Invisalign Submission Option: Invisalign Full
Total Treatment Time
- 21 months
Number of aligners
- Maxillary: 45 + 10 + 8 = 63
- Mandibulary: 45 + 17 + 12 = 74
Aligner Wear time
- 1-week
Retention
- Maxillary: Hawley
- Mandibular: Hawley
Results achieved
- Class I relationship achieved
- Functional canine guidance on both sides
- Anterior crossbite corrected
- Posterior crossbite corrected
- Normal overjet and overbite achieved
- Significant improvement ofoverbite
- Significant improvement of overjet
- 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 linewas achieved
- All treatment goals were achieved case
- Harmonic arches were achieved
Comments
- This is a skeletal Class III mandibular prognathism with anterior crossbite case.
- Although the patient is missing two congenital lower incisors, she also has a larger size 4.3
- The Treatment plan was to retract the lower teeth by space closure and proline upper teeth to correct the anterior crossbite and open bite
- Rotational 3.5 and the posterior crossbite were also corrected at the end of the treatment
- This patient had severe decalcification from the beginning this is a very good indication to prefer Invisalign treatment instead of conventional treatment as oral hygiene is difficult to maintain during conventional treatment
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