热成型托盘架构对语言括号传输精度的影响:一项前性临床研究
Viet Anh Nguyen1, Thi Quynh Trang Vuong2, Thi Hong Thuy Pham3
1Department of Orthodontics, Faculty of Dentistry, Phenikaa University, Hanoi, Viet Nam.
PloS one
|January 27, 2026
概括
热成型转移托盘的架构会在间接结合过程中影响语言支架的准确性. 虽然所有设计都是临床上可接受的,但单层刚性托盘提供了更好的控制,而更薄的双层托盘提供了更快的交付.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料工程 生物材料工程
- 数字牙科数字牙科
背景情况:
- 间接结合是一种常见的正牙技术.
- 热成型转移托盘用于精确的支架放置.
- 托盘设计对体内精度的影响需要进一步研究.
研究的目的:
- 评估热成型转移托盘架构如何影响语言括号的体内位置精度.
- 为了确定支架位置的偏差是否在临床上可接受的范围内.
主要方法:
- 采用数字间接结合工作流程,利用虚拟规划和3D打印模型.
- 测试了四种托盘设计 (一个单层刚性,三双层不同厚).
- 支架位置在结合后被数字化,并与计划中的虚拟位置进行比较.
主要成果:
- 所有测试的托盘设计都显示了临床上可接受的语言括号的传输精度.
- 线性偏差低于0.5毫米,角性偏差一般在2.0°以内.
- 一个单层刚性托盘提供了最好的旋转和口语控制,而更厚的双层托盘没有显示出精度的提高.
结论:
- 托盘架构影响支架定位的可预测性,扭矩是控制最小的维度.
- 建议使用单层刚性托盘,用于需要精确的旋转和口舌控制的情况.
- 一个较薄的双层托盘为不那么复杂的对齐提供了更快的临床替代方案.
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