Treatment Summary
Patient Information
- Age: 27
- Gender: female
- Invisalign Submission Option: Invisalign Comprehensive
Total Treatment Time
- 27 months
Number of aligners
- Maxillary: 24 + 56 + 14 = 94
- Mandibulary: 24 + 56 + 14 = 94
Aligner Wear time
- 10 days when in the lingual root torque controlling stage. 7 days in other stages.
Retention
- Maxillary: Vivera retainer
- Mandibular: Vivera retainer
Results achieved
- Class I relationship achieved
- Functional canine guidance on both sides
- Anterior crossbite corrected
- Normal overjet and overbite achieved
- Midlines coincident
- Proper axial inclination of incisors
- Arches aligned and coordinated
- Aesthetic smile line was achieved
- All treatment goals were achieved case
- Harmonic arches were achieved
Comments
- This is a Class III spacing case.
- When we close all lower anterior spaces, the negative overjet (aka anterior crossbite) will be resolved.
- But according to the very thin symphysis, retraction of lower anterior teeth needs to be done carefully to prevent labial tipping of the root that causes dehiscence.
- The power ridge feature of the Invisalign system is very effective to control root torque during retraction of lower anterior teeth.
- We could notice that only lower incisors crowns were retracted while the roots were still in the bone.
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