对结构上受损的牙进行直接和间接的onlay修复
1Assistant Professor, Department of Restorative Dentistry, Faculty of Dentistry, College of Dental Medicine, University of Umm Al Qura, Makkah, Saudi Arabia..
The Journal of prosthetic dentistry
|September 11, 2023
概括
与CAD-CAM选项相比,纤维增强复合树脂表现出优越的断裂阻力和较少的微漏,用于恢复受损的后牙. 这种直接修复方法为牙科修复提供了一个可行的替代方案.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 生物材料工程 生物材料工程
背景情况:
- 关于用直接复合树脂或间接修复恢复结构上受损的后牙的研究有限.
- 评估用于增强牙科修复耐久性的新材料至关重要.
研究的目的:
- 为了比较各种对损坏的牙进行onlay修复的抗破裂性和微漏性.
- 评估传统和数字计算机辅助设计和计算机辅助制造 (CAD-CAM) 制造方法.
主要方法:
- 54个下牙被准备用于onlay修复,并分为三个材料组:纳米混合复合材料,树脂混合陶和纤维增强复合树脂.
- 修复用双聚合粘合树脂水泥粘合,然后进行热循环和循环加载.
- 评估了抗断裂性和微泄漏性,并使用费舍尔精确测试分析了数据.
主要成果:
- 纤维增强复合树脂表现出统计学上显著的更高的断裂阻力 (P<.001).
- 与其他测试组相比,这种材料的微泄漏也显著减少 (P=.013).
结论:
- 直接纤维增强复合树脂是CAD-CAM复合树脂的潜在替代品,用于修复结构受损的牙.
- 这一发现支持在修复性牙科手术中使用先进的复合材料.
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