Class II div 1, Posterior crossbite, Increased overjet, Mandibular retrognathia, Deep bite, Narrow arches, Rotations, Spacing
Mandibular advancement
, Pre Mandibular advancement phase
, Intrusion
, Expansion
, Space Closure
, Phase I: non-Invisalign treatment
, Elastics: Class II in Additional Aligners
Courtesy of Dr C. Ying Tsai,
2021
Treatment Summary
Patient Information
- Age: 11
- Gender: male
- Invisalign Submission Option: Invisalign Teen with MA
Total Treatment Time
- 29 months
Number of aligners
- Maxillary: 36 + 13 + 9 = 58
- Mandibulary: 36 + 13 + 9 = 58
Aligner Wear time
- 7-14 days
Retention
- Maxillary: Vivera retainer
- Mandibular: Vivera retainer
Results achieved
- Class I relationship achieved
- Posterior crossbite corrected
- Normal overjet and overbite achieved
- Deepbite improved
- Overjet improved
- Significant improvement of overjet
- Midlines coincident
- Proper axial inclination of incisors
- Curve of Spee leveled
- Arches aligned and coordinated
- Arch form improved
- Aesthetic smile line was achieved
- All treatment goals were achieved case
- Harmonic arches were achieved
Comments
- We applied myofunctional therapy and myobrace before aligners. The overjet is reduced but still large, and posterior crossbite, rotation lateral incisors, spacing problems were not corrected by myobrace.
- Mandibular Advancement with the Precision Wings was very useful for overjet improvement. Arch expansion and dental alignment are simultaneous during MA phase.
- In the Additional Aligner phase, we applied class II elastics to maintain the molar and jaw relationship.
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