腔深对低收缩树脂复合材料的转化程度和微硬度的影响
Seda Gömleksiz1, Oğuzhan Gömleksiz2
1Department of Restorative Dentistry, Faculty of Dentistry, Erzincan Binali Yıldırım University, Erzincan, Turkey. sedaozkanoglu1@gmail.com.
BMC oral health
|July 4, 2025
概括
腔深没有显著影响低收缩树脂复合材料的转化度 (DC) 和表面微硬度 (MH). 材料配方似乎是这些特性的一个更关键因素.
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
- 牙科材料 牙科材料
背景情况:
- 研究牙科修复材料的性能对于临床成功至关重要.
- 低收缩树脂复合材料旨在最大限度地减少聚合应激,并提高边际完整性.
- 了解腔深如何影响材料性能对于可预测的修复至关重要.
研究的目的:
- 为了评估不同腔深 (2毫米和4毫米) 对低收缩树脂复合材料的转化度 (DC) 和表面微硬度 (MH) 的影响.
- 为了比较三种低收缩树脂复合材料与传统纳米混合复合材料的性能.
主要方法:
- 测试了三种低收缩树脂复合材料 (CMP,BL,CD) 和一种常规复合材料 (FZ).
- 在2毫米和4毫米深度准备了盘状样本.
- 使用FTIR光谱测量了转换度 (DC),并使用维克斯硬度测试仪评估了表面微硬度 (MH).
主要成果:
- 对于任何复合材料,在2毫米和4毫米腔深之间没有观察到DC和MH的显著差异.
- 美丽的II LS (BL) 显示了最高的直流值,而魅力的钻石 (CD) 显示了最低的.
- 克莱尔菲尔 Majestry Posterior (CMP) 显示出最高的底部至顶部表面微硬度,而BL则是最低的. 顶部表面MH始终高于底部表面MH.
结论:
- 增加腔深似乎不会对低收缩树脂复合材料的转化程度和表面微硬度产生负面影响.
- 树脂复合材料的配方在确定DC和MH方面发挥着比腔深度更重要的作用.
- 这些发现表明,临床医生可以对低收缩树脂复合材料在不同腔深度的性能充满信心.
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