安氏 III 类
,
前牙反牙合
,
牙列拥挤

远中移动
,
伸长
,
内收
,
间隙闭合
,
弹性牵引:安氏 III 类
,
弹性牵引:垂直面
Courtesy of Dr V. Laoamata, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 27
  • Gender: female
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 27 个月

矫治器数量

  • Maxillary: 24 + 56 + 14 = 94
  • Mandibulary: 24 + 56 + 14 = 94

Aligner Wear time

  • 10 days when in the lingual root torque controlling stage. 7 days in other stages.

保留

  • Maxillary: Vivera retainer
  • Mandibular: Vivera retainer

Results achieved

  • 达到安氏 I 类关系
  •  两侧的功能性尖牙引导
  •  前牙反牙合已矫正
  • 实现正常覆盖和覆牙合
  • 中线对齐
  • 切牙达到合适的轴向倾斜
  • 已对齐并协调牙弓
  • 已获得美观的微笑线  
  • 已实现所有治疗目标
  • 实现牙弓协调

评论

  • This is a Class III spacing case.
  • When we close all lower anterior spaces, the negative overjet (aka anterior crossbite) will be resolved.
  • But according to the very thin symphysis, retraction of lower anterior teeth needs to be done carefully to prevent labial tipping of the root that causes dehiscence.
  • The power ridge feature of the Invisalign system is very effective to control root torque during retraction of lower anterior teeth.
  • We could notice that only lower incisors crowns were retracted while the roots were still in the bone.

Images

Initial and final

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upper
lower
right
front
left
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upper
lower
right
front
left
初始状态治疗后
Before picture of treatment
After picture of treatment
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X光片

初始状态 治疗后
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