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斯皮曲线是否会影响3D打印的曲率适应的精度?

Liwei Zhu¹, Wenze Han², Runzhe Xiang¹

¹State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.

Journal of dentistry

|June 6, 2024

概括

斯佩曲线的深度 (COS) 不会影响三维 (3D) 打印的曲率适应 (CAS) 的精度. 这些3D打印的CAS显示出高精度,偏差在各种COS深度的临床上可以接受的极限内.

科学领域:

牙科技术牙科技术
生物材料工程生物材料工程
矯正牙科矯正牙科是一種矯正牙科.

背景情况:

三维 (3D) 打印为牙科设备提供了先进的制造可能性.
曲率适应性 (CASs) 需要精确地适应个体牙解剖学.
斯佩曲线 (COS) 是一个关键的解剖学特征,影响了闭塞关系.

研究的目的:

为制造3D打印CAS建立一个标准化的协议.
为了评估这些CAS在COS的不同深度的精度.
确定开发的制造协议的临床适用性.

主要方法:

使用标准化协议制造3D打印的CAS.
使用76种下牙牙树脂模型,具有四种不同的COS深度 (0-, 2-, 4-, 6-mm).
通过数字扫描和与原始设计的比较来评估CAS精度.

主要成果:

转移偏差在斜面尺寸 (0.136毫米) 中最高,旋转偏差在斜面 (0.323°) 中最高.
不同的COS深度 (C0,C2,C4,C6) 中没有发现统计学上显著的精度差异.
所有测量的偏差和RMSE都明显低于确定的临床可接受限值.

结论:

COS的深度不会显著影响3D打印CASs的精度.
开发的标准化协议确保了CAS制造的高精度,无论COS的深度如何.
这种"曲率适应"协议优化了3D打印的 splint 制造,以适应各种牙解剖.

关键词:

在CAD/CAM中使用.在Spee的曲线.斯普林特是指一个子.这是一个三维的三维空间.

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