Sınıf II böl 1
,
Artmış overjet
,
Mandibular Retrognati
,
Deep bite
,
Dar Ark
,
Mandibular orta hat sapması

Mandibular İlerleme
,
 Spee Eğrisini Düzleştirme
,
İntrüzyon
,
Ekspansiyon
,
Elastikler: Sınıf 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 ay

Hizalayıcı sayısı

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

Aligner Wear time

  • 1 hafta

Alıkoyma

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Sınıf I ilişkisine ulaşıldı
  • Her iki tarafta işlevsel köpekdişi kılavuzu
  • Normal overjet ve overbite’a ulaşıldı
  • Overbite’ın önemli ölçüde iyileştirilmesi
  • Overjet’in önemli ölçüde iyileştirilmesi
  • Kesici dişlerin düzgün eksenel inklinasyonu
  • Curve of Spee leveled
  • Arklar hizalandı ve koordine edildi
  • Ark biçimi iyileştirildi
  • Estetik gülümseme hattına ulaşıld 
  • Vakanın tüm tedavi hedeflerine erişildi
  • Harmonik arklar elde edildi

Yorumlar

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
left
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İlerleme

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lower
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İlkSon
Before picture of treatment
After picture of treatment
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Radyogramlar

İlk
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