批量填充树脂基复合材料和三种接材料在玻璃纤维增强柱子的固上进行比较
Carlos Alberto Kenji Shimokawa1, Paula Mendes Acatauassú Carneiro2, Tamile Rocha da Silva Lobo1
1Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.
Restorative dentistry & endodontics
|September 7, 2023
概括
与传统水泥相比,可流式散装填充复合材料 (BF) 显示出与传统水泥相比,可比或更高的推出键强度和微硬度用于接玻璃纤维柱子. 当足够的光固化可以实现时,这种材料是一种可行的选择.
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:
- 玻璃纤维增强柱通常用于内牙治疗的牙.
- 选择的接材料显著影响长寿和成功的后内牙修复.
- 浮式散装填充复合材料在处理和放置效率方面具有潜在的优势.
研究的目的:
- 为了评估可流式散装填充复合材料 (BF) 的推出键强度和微硬度,当用于结玻璃纤维增强柱子时.
- 将BF的性能与其他三种接材料进行比较:传统的双固化水泥 (CC),自粘水泥 (SA) 和普通复合材料 (RC).
主要方法:
- 使用了60根牛根,用CC,SA,RC和BF进行固的柱子.
- 推出键的强度和微硬度在1周和4个月后进行了测试.
- 统计分析包括双向重复测量ANOVA,单向ANOVA,t测试和皮尔森相关性.
主要成果:
- 在老化前的宫三分之一中,BF表现出比CC和SA更高的推出键强度.
- 在任何材料的老化后,没有观察到键强度的显著差异.
- 在老化后,SA显示微硬度下降,而RC和BF在顶峰区域显示不完整的硬度.
结论:
- 流动性散装填充复合材料 (BF) 提供可比或优越的推出键强度和微硬度,用于固玻璃纤维柱子.
- BF是一种合适的替代光材料,特别是在允许有效光固的情况下.
- 这项研究强调了推出键强度和金材料的微硬度之间的强烈正相关性.
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