Classe I, Retrognazia mandibolare, Deep bite, Arcate strette, Arcate asimmetriche, Deviazione della linea mediana mandibolare, Spostamento della linea mediana, Affollamento, Rotazioni
 Livellamento della curva di Spee
, Retrazione
, First premolar extraction
, Elastici: Classe II
Courtesy of Dr X. Yueqiang,
2022
Treatment Summary
Patient Information
- Age: 28
- Gender: female
- Invisalign Submission Option: Invisalign Full
Total Treatment Time
- 20 mesi
Numero di aligner
- Maxillary: 40 + 21 = 61
- Mandibulary: 40 + 21 = 61
Aligner Wear time
- 1settimana
Ritenzione
- Maxillary: Hawley
- Mandibular: Hawley
Results achieved
- Relazione di Classe I
- Guida funzionale dei canini su entrambi i lati
- Overjet e overbite normali
- Miglioramento dell'overjet
- Linee mediane coincidenti
- Curve of Spee leveled
- Miglioramento della forma dell’arcata
Commenti
- Firstly, the G6 first premolar extraction scheme was used in the upper jaw to maintain the anchorage of the upper posterior teeth. The torque control and vertical control of the upper anterior teeth achieved the desired effect, and the alignment and leveling efficiency was excellent.
- Secondly, Invisalign appliance has a good effect on the control of dental arch width. In this scheme, the mandibular expansion has not been significantly overcorrected to achieve the effect of matching the upper and lower dental arch width.
- Third, traditional rectangular attachments were used in the middle segment of the mandibular arch to control the torque and the vertical direction of the lower anterior teeth . The OB of lower anterior teeth were overcorrected to 0 mm, which basically achieved the expectation.