静态和疲劳 机械性能 支架 牙科修复材料
Luigi Bruno1, Luigi Canullo2, Yaniv Mayer3
1Department of Mechanical Energy and Management Engineering, University of Calabria, 87036 Rende, Italy.
Materials (Basel, Switzerland)
|May 27, 2023
概括
与聚合物基材料相比,二氧化和半透明石对植入物修复具有优越的机械性能. 材料选择和制造技术显著影响牙植入物康复的长期成功.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料 牙科材料
- 机械工程 机械工程
背景情况:
- 选择适当的修复材料对于植入物支持的牙科康复的长寿至关重要.
- 了解不同支柱材料在功能负载下的机械行为对于临床成功至关重要.
研究的目的:
- 为了比较四种用于植入物支持修复的商业支柱材料的静态和疲劳机械性能.
- 评估材料类型和几何形状对植入物支柱性能的影响.
主要方法:
- 四种材料进行了测试:二氧化 (A),半透明 (B),纤维增强的聚甲基甲基酸 (PMMA) (C) 和陶增强的聚乙烯基 (PEEK) (D).
- 根据ISO 14801:2016进行了联合曲-压缩测试,包括静态和疲劳分析.
- 疲劳测试模拟了五年的临床服务,使用10 Hz的交替负载和0.1.1. 的负载比率.
主要成果:
- 与PMMA (C) 和PEEK (D) 相比,二氧化 (A) 和半透明 (B) 的静电和疲劳强度明显更好.
- 纤维增强PMMA (C) 在材料特性和几何设计之间表现出了显著的相互作用.
- 修复结果受到制造方法和临床医生的专业知识的影响.
结论:
- 基于陶的支柱材料 (二氧化和) 为植入物修复提供了卓越的机械性能.
- 在选择支柱材料时,临床医生应考虑材料特性,美学,成本和制造因素.
- 在聚合物基支柱中对材料几何相互作用的进一步研究是有必要的.
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