复合核心构建材料的断裂抵抗的比较评估:一个体外研究
Deepmala Pande1, Niharika Benjamin2, Vishakha Rani3
1Department of Prosthodontics, Hitkarini Dental College and Hospital, Jabalpur, IND.
Cureus
|July 29, 2024
概括
与纳米填充剂和微填充剂复合材料相比,短纤维增强复合材料 (SFRC) 在核心积累中表现出优越的断裂耐力. 这一发现有助于选择适当的牙科修复材料,以提高耐用性.
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
- 恢复性牙科 恢复性牙科
背景情况:
- 复合材料在现代修复牙科中越来越重要,特别是对于核心积累,由于美学要求.
- 了解不同复合材料配方的机械性能对于优化牙科修复性能至关重要.
- 短纤维增强复合材料 (SFRC) 代表了复合材料技术的进步,可能提供更好的机械特性.
研究的目的:
- 为了比较用于核心构建的三种不同的复合材料的断裂阻力.
- 评估短纤维增强复合材料 (SFRC),纳米填料复合材料和微填料复合材料在机械负荷下的性能.
- 提供数据,以指导选择最佳复合材料,用于牙科修复的特定临床应用.
主要方法:
- 一项体外研究使用了30个经过内牙治疗的前牙,用纤维柱恢复.
- 牙被分为三组,用SFRC,微填充复合材料或纳米填充复合材料恢复,然后进行光固化.
- 使用通用测试机评估了断裂阻力,测试后分析了故障模式. 统计分析包括ANOVA和Tukey的测试.
主要成果:
- 短纤维增强复合材料 (SFRC) 与纳米填充剂和微填充剂复合材料相比,具有显著更高的断裂阻力.
- 纳米填充复合材料显示出比微填充复合材料更强的断裂阻力.
- 微填料复合材料在测试材料中表现出最低的平均断裂阻力.
结论:
- 短纤维增强复合材料 (SFRC) 为牙核心积累提供优越的断裂阻力,性能优于传统的纳米填充剂和微填充剂复合材料.
- 这些发现支持在临床场景中使用SFRC,需要在核心修复中提高机械稳定性和耐久性.
- 这项研究有助于在修复性牙科中进行知情的材料选择,平衡美学要求与机械完整性.
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