Class II div 1, Anterior crossbite, Edge to edge bite, Narrow arches, Asymmetric arches, Crowding, Rotations
Distalization
, Mesialization
, Leveling Curve of Spee
, Extrusion
, Intrusion
, Expansion
, Retraction
, Proclination
, First premolar extraction
, IPR
, Space Closure
, Elastics: Class II
, Elastics: Class III
Courtesy of Dr. K. Fei Fong,
2020
2021 Peer Review Award
Treatment Summary
Patient Information
- Age: 24
- Gender: female
- Invisalign Submission Option: Invisalign Full
Total Treatment Time
- 21 months
Number of aligners
- Maxillary: 57 + 11 + 15 = 83
- Mandibulary: 57 + 11 + 15 = 83
Aligner Wear time
- 1-week
Retention
- Maxillary: Other clear
- Mandibular: Other clear
Results achieved
- Class I relationship achieved
- Class II relationship maintained
- Functional canine guidance on both sides
- Anterior crossbite corrected
- Normal overjet and overbite achieved
- Deepbite improved
- Overjet improved
- 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
- On the left side, Class I occlusion was easy to achieve by using Align sequential distalization protocol
- On the right side, distalization was more difficult because of the impacted third molar, therefore we decided to extract the tooth 1.4 to achieve Class II molar occlusion and relief upper right crowding
- Class III elastics were used on the right side to help molar mesialization
- We used Class II elastics on the right side to help posterior teeth distalization
- This patients treatment went fairly easy because the Invisalign system can provide both stable anchorage and staging design which was very important for the final treatment results
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