Classe I, Rétrognathie mandibulaire, Deep bite, Arcades étroites, Arcades asymétriques, Décalage de la ligne médiane mandibulaire, Décalage des lignes médianes, Encombrement, Rotations
Nivellement de la courbe de Spee
, Rétraction
, First premolar extraction
, Élastiques : 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 mois
Nombre d'aligners
- Maxillary: 40 + 21 = 61
- Mandibulary: 40 + 21 = 61
Aligner Wear time
- 1 semaine
Rétention
- Maxillary: Hawley
- Mandibular: Hawley
Results achieved
- Relation de Classe I obtenue
- Guidage fonctionnel des canines des deux côtés
- Surplomb normal et recouvrement obtenu
- Surplomb amélioré
- Les axes médians coïncident
- Curve of Spee leveled
- Forme de l'arcade améliorée
Commentaires
- 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.
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