クラスⅡ分類1
,
過大なオーバージェット
,
下顎前方誘導
,
Deep bite
,
狭窄歯列
,
下顎正中のずれ

下顎前方誘導
,
スピー湾曲のレベリング
,
圧下
,
拡大
,
クラスⅡエラスティック
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数ヶ月

アライナー数

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

Aligner Wear time

  • 1週間

保持

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • クラスⅠ関係達成
  • 機能的な犬歯誘導(左右側)
  • 正常なオーバージェット&オーバーバイト達成
  • オーバーバイトの大きな改善
  • オーバージェットの大きな改善
  • 切歯の適切な歯軸角
  • Curve of Spee leveled
  • 歯列の配列およびコーディネーション
  • アーチフォーム改善
  • 審美的スマイルの達成 
  • 全ての治療目標を達成した症例
  • 調和のとれた歯列を達成

コメント

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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進捗

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本治療治療後
Before picture of treatment
After picture of treatment
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レントゲン写真

本治療
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