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热聚合的PMMA牙基树脂的柔性特性,用具有不同特性的纤维增强

Kaan Yerliyurt¹, Taha Buğra Taşdelen², Özlem Eğri^2,3

¹Department of Prosthodontics, Faculty of Dentistry, Tokat Gaziosmanpaşa University, 60250 Tokat, Türkiye.

|August 12, 2023

概括

这项研究研究了用玻璃,聚烯和碳纤维加强聚甲基甲酸盐 (PMMA) 假牙基. 聚烯纤维 (PPF) 在改善曲性质而不会变色方面表现有前途.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
假牙牙科假牙牙科

背景情况:

聚甲基甲酸 (PMMA) 是一种广泛使用的假牙基材质.
在循环使用过程中,PMMA表现出物理不足,需要加强策略.
纤维,纳米颗粒,电线和网格被探索为PMMA增强.

研究的目的:

为了比较研究不同纤维添加剂对热固化PMMA假牙基树脂曲性质的影响.
评估各种长度和度的玻璃纤维 (GF),聚烯纤维 (PPF) 和碳纤维 (CF).
为了确定PMMA假牙基的最佳纤维增强.

主要方法:

用GF,PPF和CF (长度为3,6,12毫米;度为0.25,0.50,1.0%) 来增强PMMA.
柔性特性 (强度,模量,最大变形) 用三点曲试验进行了评估.
通过扫描电子显微镜分析骨折表面形态;用于统计分析,使用三向ANOVA.

主要成果:

所有纤维类型都显著改善了曲强度和模量 (p < 0.001),无论长度和度如何.
在1.0%度和12毫米长度的碳纤维 (CFs) 产生了最高的屈曲强度 (94.8 ± 8.8 MPa).
由于CF的深灰色变色,建议使用聚烯纤维 (PPF),使其不适合为假牙基.

结论:

纤维增强显著提高了PMMA假牙基树脂的柔性性能.
聚烯纤维 (PPF) 是热固化PMMA的有希望的增强材料,平衡了机械改进和美学.
对PPF优化的进一步研究可能会导致改善假牙基材质.

关键词:

碳纤维碳纤维的使用假牙基质树脂假牙基质树脂玻璃纤维的玻璃纤维.聚烯纤维聚烯纤维增强聚甲基甲基酸的聚甲基甲基酸.

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