牙弧宽度变化对对正前牙调整所需的有效空间的影响
Fayez Elkholy1, Catrin Gerhart2, Falko Schmidt2
1Department of Orthodontics, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany. fayez.elkholy@uni-ulm.de.
Clinical oral investigations
|May 13, 2025
概括
牙弧宽度的变化对切口对齐所需的空间的影响微不足道. 这表明形可能不是一个关键因素,在决定牙扩张或前提取前挤压之间.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙弧分析 牙弧分析
- 牙对齐方式 牙对齐方式
背景情况:
- 传统的空间分析依赖于中间距离牙尺寸.
- 在形形状的影响下,近距离接触位置决定了实际的空间需求.
- 了解门宽度的影响对于治疗规划至关重要.
研究的目的:
- 评估牙弧的扩张和收缩如何影响切口的对齐空间.
- 量化门宽度和切口器空间要求之间的关系.
- 为了解决正义牙科治疗策略的决策.
主要方法:
- 使用50个数字牙弧型模型,用OnyxCeph 3DTM软件进行分析.
- 提取了近距离接触点的3D坐标.
- 在增量门宽度调整之前和之后,测量 mesio-distal 空间需求.
主要成果:
- 随着形扩张,观察到切口对齐空间的统计学上显著但小幅增加.
- 大门和下门门的扩张显示平均增加分别为0.03毫米和0.04毫米每1毫米.
- 收缩导致每1毫米的空间需求变化为0.05毫米,对于两下.
结论:
- 牙弧形对刺刀对齐空间的影响很小.
- 弧形形状的影响是可以忽略不计的,在治疗决策中可以忽略.
- 这一发现支持在考虑牙门扩张与前立腺提取前部拥挤时忽视形.
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