安氏 II 类 1 分类
,
深覆盖
,
 下颌后缩
,
牙弓不对称
,
上颌中线偏移
,
下颌中线偏移
,
中线移位
,
牙列拥挤
,
扭转

远中移动
,
 平整 Spee 曲线
,
压低
,
扩弓
,
内收
,
First premolar extraction
,
间隙闭合
,
弹性牵引:安氏 II 类
,
弹性牵引:安氏 III 类
,
拔牙
Courtesy of Dr W. Li, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 118
  • Gender: female
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 21 个月

矫治器数量

  • Maxillary: 40 + 19 + 16 = 75
  • Mandibulary: 40 + 18 + 30 = 88

保留

  • Maxillary: Other
  • Mandibular: Other

Results achieved

  • 达到安氏 I 类关系
  •  保持安氏 I 类关系
  • 实现正常覆盖和覆牙合
  •  显著改善覆盖
  • Curve of Spee leveled
  • 已对齐并协调牙弓
  • 通过去扭转对齐上下牙弓
  • 已改善牙弓形状
  • 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 patient was Angle class I malocclusion with an obvious protrusive maxilla, slight retractive mandible, and a severe gummy smile.
  • We chose to extract 4 first premolars and use 2 anchorage screws to improve the convex profile and gummy smile.
  • We kept the strong anchorage design of G6 for the mandible.
  • For the upper arch, based on G6, we changed several optimized attachments into traditional rectangular attachments to enhance retention.
  • At the same time, the vertical overcorrection of anterior teeth was designed, and the torque overcorrection of anterior teeth was added, to help achieve better control of the torque and vertical height of anterior teeth during the progress when the anterior teeth were retracted.
  • After 26 months of aligner treatment, the patient achieved great improvements.
  • Firstly, the normal occlusal relationship was established,
  • Secondly, the profile changed from convex to straight, and
  • Thirdly, a beautiful smile curve was established and the gummy smile was relieved.
  • This case suggests that adult cases with skeletal type II convex deformity can be quickly and effectively corrected by the Invisalign system.

Images

Initial and final

Click to compare enlarged
upper
lower
right
front
left
Click to compare enlarged
upper
lower
right
front
left
初始状态治疗后
Before picture of treatment
After picture of treatment
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged
Thumbnail, click to compare enlarged Thumbnail, click to compare enlarged

X光片

初始状态 治疗后
Click to compare enlarged399
Click to compare enlarged393