Classe II div. 1
,
Aumento dell'overjet
,
Retrognazia mandibolare
,
Deep bite
,
Arcate strette
,
Deviazione della linea mediana mandibolare

Avanzamento mandibolare
,
 Livellamento della curva di Spee
,
Intrusione
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Espansione
,
Elastici: Classe II
Courtesy of Dr J. Weng, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 11
  • Gender: male
  • Invisalign Submission Option: Invisalign Teen with MA

Total Treatment Time

  • 18 mesi

Numero di aligner

  • Maxillary: 35 + 40 = 75
  • Mandibulary: 35 + 40 = 75

Aligner Wear time

  • 1settimana

Ritenzione

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Relazione di Classe I
  • Guida funzionale dei canini su entrambi i lati
  • Overjet e overbite normali
  • Miglioramento significativo dell'overbite
  • Miglioramento significativo dell'overjet
  • Inclinazione assiale corretta degli incisivi
  • Curve of Spee leveled
  • Arcate allineate e coordinate
  • Miglioramento della forma dell’arcata
  • Linea del sorriso estetica  
  • Tutti gli obiettivi di trattamento sono stati raggiunti
  • Armonizzazione delle arcate

Commenti

I intended to use MA to correct Class II occlusion and guide the mandible forward at first, but the precision wings were broken frequently.
The patient wore 35# MA aligners, but Class II occlusion and deep bite still existed and the effect of upper arch expansion was not ideal. I think that MA is not good for upper arch expansion and Spee curve leveling. So I turned to MCC.

  • Three-dimensional adjustment on the upper and lower arches is very important in Class II occlusion.
  • Horizontally, I used aligners to expand the upper arch by 3mm per side.
  • Vertically, I used G5 to level the Spee curve and correct deep bite.
  • Sagitally, light force(3/16,3.5oz) Class II elastics were used to guide the mandible forward.

Images

Initial and final

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lower
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front
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Progresso

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InizialeFinale
Before picture of treatment
After picture of treatment
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Le radiografie

Iniziale
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