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3D打印儿童空间维护者的结构分析

Lydia Watson¹, Brent Danley¹, Antheunis Versluis¹

¹University of Tennessee Health Science Center.

Pediatric dentistry

|August 22, 2023

概括

3D打印空间维护器 (SMs) 显示出有前途的机械性能,但与传统的不钢 (SS) SMs相比,其保持率较低. 纹理表面没有改善保留,这表明3D打印SM作为替代品的潜力.

科学领域:

生物材料科学生物材料科学
牙科材料牙科材料
增材制造增材制造增材制造

背景情况:

空间维护者 (SMs) 在儿科牙科中至关重要,在过早失去牙后保护门空间.
传统的不钢 (SS) SMs是有效的,但可能是技术敏感的制造.
3D打印为定制和高效的牙科设备制造提供了潜力.

研究的目的:

在体外设计,制造和评估3D打印空间维护器 (SMs).
为了比较3D打印SM的保留能力与传统的SSSM.

主要方法:

基于机械性能,E-Guard树脂被选择用于3D打印SMs.
爪式设计的SMs被打印出来,并测试了垂直负载下的故障强度和偏移.
将3D打印带的保留与各种形表面纹理进行比较,与SS带结在提取的母牙上.

主要成果:

在测试的树脂中,E-Guard表现出优越的屈曲强度 (134±25 MPa) 和弹性模量 (2.65±0.89 GPa).
3D打印的SM显示平均故障负载为124N,曲1.73毫米.
3D打印带 (32-43 N) 的保留强度明显低于传统的SS带 (126 N);表面纹理没有显著改善.

结论:

对于3D打印的SM,E-Guard具有有利的机械性能.
虽然3D打印的SM表现出足够的强度和曲率,但它们的保留能力低于SS带.
需要进行进一步的研究,以提高3D打印SM的临床可行性.

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