临时修复的新时代:在添加,抽取和常规技术中评估边际精度和断裂强度
1Recep Tayyip Erdoğan University, Rize, Türkiye. gizem.yilmaz@erdogan.edu.tr.
BMC oral health
|June 4, 2025
概括
扣除式计算机辅助设计/计算机辅助制造 (CAD/CAM) 方法产生了具有优越的断裂抵抗性和与3D打印相比较的边缘差距的临时修复. 传统方法导致了更大的边际差距.
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:
- 固定临时修复对于在牙科治疗期间保持功能和美学至关重要.
- 评估传统,减法 (CAD/CAM) 和增材 (3D打印) 等制造技术对于优化修复性能至关重要.
研究的目的:
- 为了比较通过传统,减法 (CAD/CAM) 和添加式 (3D打印) 方法制造的临时修复的边缘空隙和断裂阻力.
- 评估衰老 (人造唾液和热循环) 对这些参数的影响.
主要方法:
- 在环氧树脂模具上使用常规,减法和添加技术制造了60个临时修复.
- 在老化前和老化后使用立体显微镜测量边际差距 (人工唾液,5000个热循环).
- 使用一台Instron通用测试机来评估断裂阻力;用ANOVA和Tukey的测试分析数据.
主要成果:
- 制造方法和老化显著影响了结果 (p < 0.05).
- 减法和添加方法的边际差距明显小于传统方法 (p < 0.001),减法和添加方法之间没有显著差异.
- 减法方法表现出最高的断裂阻力,明显高于添加法和常规方法 (p < 0.001).
结论:
- 减法 (CAD/CAM) 方法为固定临时修复提供了最高的断裂阻力.
- 与传统方法相比,减法和添加技术都提供了更高的边际差距精度.
- 减法 (CAD/CAM) 方法被推用于长期固定临时修复,因为它具有优越的骨折抵抗力.
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