浮性树脂复合材料的粘度依赖的收缩行为
Nadja Jeconias1, Peter Fischer2, Tobias T Tauböck1
1Department of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland.
Polymers
|December 31, 2025
概括
粘度更高的可流动树脂复合材料可以减少聚合缩水应力,这是恢复性牙科的关键因素. 这项研究发现粘度和收缩应力之间存在显著的负相关性,这表明对粘度更高的材料有好处.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 浮性树脂复合材料广泛用于牙科修复.
- 线性聚合物的收缩和由此产生的收缩应力是影响这些材料临床成功的关键因素.
- 了解材料特性和应力发展之间的关系对于改进修复技术至关重要.
研究的目的:
- 研究各种可流动树脂复合材料的粘度,线性聚合收缩和收缩应力之间的关系.
- 确定树脂复合材料的不同流动特性如何影响聚合引起的应力.
主要方法:
- 六种可流动树脂复合材料被分为低,中,高流量组.
- 粘度是用圆板体质计测量的.
- 在光激活后,使用专用定制仪器实时记录了线性聚合物的收缩和收缩应力.
主要成果:
- 在粘度和收缩应力之间发现了显著的负相关性 (r = -0.943,p = 0.017).
- 最低粘度的复合材料表现出最高的收缩应力,而低流量复合材料表现出最低的收缩应力.
- 线性收缩在材料之间有所不同,但与粘度或收缩应力没有显著的相关性.
结论:
- 粘度是影响可流动树脂复合材料中聚合诱导的收缩应力的发展的关键因素.
- 与高流量变体相比,更高粘度的可流性树脂复合材料可以通过减少聚合过程中的应力积累来提供优势.
- 在选择流动复合材料时,应考虑材料粘度,以优化临床结果并最大限度地减少与压力相关的故障.
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