安氏 II 类 1 分类
,
深覆盖
,
Open bite
,
牙弓狭窄
,
中线移位
,
牙列拥挤
,
扭转

远中移动
,
伸长
,
压低
,
扩弓
,
邻面去釉
,
弹性牵引:安氏 II 类
Courtesy of Dr. R. Lie, 2017
Before picture of treatment

Treatment Summary

Patient Information

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

Total Treatment Time

  • 14个月

矫治器数量

  • Maxillary: 38 + 14 = 52
  • Mandibulary: 37 + 11 = 48

Aligner Wear time

  • 1 周

保留

  • Maxillary: Vivera
  • Mandibular: Vivera

Results achieved

  • 达到安氏 I 类关系
  • Normal overjet and overbite achieved
  • Significant improvement ofoverbite
  •  显著改善覆盖
  • 中线对齐
  • 切牙达到合适的轴向倾斜
  • 已对齐并协调牙弓
  • 已改善牙弓形状
  • Aesthetic smile linewas achieved
  • 已实现所有治疗目标
  • 实现牙弓协调

评论

  • The third molars were removed prior to commencement of treatment to eliminate the CO/CR discrepancy.
  • The Class II buccal relationship was corrected by sequential distalisation of the upper premolar and molar segments.
  • The anterior open bite was addressed through a combination of the intrusion of the posterior segments and relative extrusion of the upper anterior segments upon retraction after interproximal reduction (IPR) of the front teeth. Intrusion of the posterior segments was over-prescribed in order to obtain an over treatment effect.
  • Crowding of the anterior segments was achieved through staging of IPR to avoid unwanted or 'round-tripping' tooth movement.
  • The shaped of the arches was improved by expansion and rounding off.
    The patient was instructed to change aligner every 7 days during the whole treatment duration, and to wear heavy intra-oral Class II elastics during the distalisation stage.
  • Class II elastics was continued in the Refinement stage as a form of retention.

Images

Initial and final

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lower
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front
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upper
lower
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front
left

进展

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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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