使用不同的技术制造的定制聚乙烯基柱和芯的真实性和内角适合性
Dina Bassiouny1, Sandra Petersmann2, Maged Zohdy3
1Assistant Lecturer, Department of Fixed Prosthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
The Journal of prosthetic dentistry
|August 1, 2024
概括
减法制造和热压技术比增材制造更准确的定制聚乙烯基 (PEEK) 后芯和芯. 为了使3D打印PEEK修复成为可靠的替代品,需要进一步改进.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 聚乙基 (PEEK) 是陶的可行的替代品,用于牙科后和核心.
- 关于定制PEEK后芯的制造技术及其准确性的数据有限.
研究的目的:
- 为了评估使用不同的技术制造的定制PEEK后台和核心的真实性和切割合适性.
主要方法:
- 通过热压,减法制造和增材制造,使用了十颗经过内治疗的牙来制造定制的PEEK柱子和芯.
- 在扫描制造的修复后,使用逆向工程软件评估了3D真实性和形合适性.
主要成果:
- 与增材制造 (102.8 ±31 μm) 相比,减法制造 (42.2 ±11 μm) 和热压显示出明显更好的3D真实性.
- 在减法制造 (96.2 ±14 μm) 和增材制造 (228.4 ±47 μm) 中,形合适度优越,特别是在顶点区域.
结论:
- 与增材制造相比,热压和减法制造为定制的PEEK柱子和芯提供了更高的真实性和合性.
- 增材制造的PEEK后台和核心需要进一步发展,以确保可靠性和临床适用性.
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