对不同对齐器材料的初始力和时刻传递的分析
Thomas Wendl1, Brigitte Wendl2, Peter Proff1
1Department of Orthodontics, 9147 University of Regensburg , Regensburg, Germany.
Biomedizinische Technik. Biomedical engineering
|February 28, 2025
概括
不同的牙调整器对牙施加不同的力量. 像CA® Pro Clear Aligner这样的常规热可塑调整器施加的力最大,而Erkodur-al显示的力最小,这对于预防牙周问题至关重要.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 牙科机械 牙科机械
背景情况:
- 牙对齐器越来越多地用于正统牙科治疗.
- 了解不同类型的对齐器所施加的力和时刻对于有效和安全的治疗至关重要.
- 不同的材料和制造方法会影响对齐器的性能.
研究的目的:
- 量化和比较不同类型的牙调整器产生的初始力和动量.
- 研究材料组成和制造技术对对齐器生物力学的影响.
主要方法:
- 使用有限元法 (FEM) 分析来模拟力和时刻.
- 创建了带有旋转牙的牙弧形的数字模型.
- 测试了四种类型的对齐器:可打印 (Graphy),自制 (聚乙烯碳酸/热塑性聚氨) 和两种热可塑 (CA® Pro Clear Aligner,Erkodur-al).
主要成果:
- 该CA® Pro清晰对齐器产生了最高的力量和时刻.
- 在所有测试厚度中,Erkodur-al始终表现出最低的力负载.
- 在特定厚度下,Graphy打印的对齐器显示了与Erkodur-al可比的低力效果.
结论:
- 调整器的选择显著影响了对牙施加的生物力学力.
- 对于 mesiorotated 牙运动,建议选择具有较低力和时刻传递的对齐器,例如 Erkodur-al,以防止牙周过载.
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