通用单色树脂基复合材料的柔性强度和转化程度
Ghada Alharbi1,2, Hend Na Al Nahedh1, Loulwa M Al-Saud1
1Department of Restorative Dental Science, College of Dentistry, King Saud University. P.O. Box 60169, Riyadh 11545, Saudi Arabia.
Heliyon
|July 4, 2024
概括
基于树脂的通用单色复合材料 (RBC) 显示出有希望的屈曲强度 (FS) 和转换度 (DC),尽管有一种产品具有低FS. 这些RBC通常在DC中表现优于常规复合材料.
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:
- 基于树脂的通用单阴影复合材料 (RBC) 简化了牙科修复中的阴影选择.
- 评估机械和物理性能对于红细胞修复的长寿至关重要.
- 屈曲强度 (FS) 和转换度 (DC) 是红细胞表现的关键指标.
研究的目的:
- 为了评估通用单色RBC的屈曲强度 (FS).
- 为了确定通用单色RBC的转换度 (DC).
- 将这些特性与常规纳米混合复合材料进行比较.
主要方法:
- 测试了四种商用RBC:三种通用单色 (Omnichroma,Charisma® Diamond ONE,Vittra APS Unique) 和一个传统的 (FiltekTM Z250 XT).
- 使用通用测试机器测量FS,在60个复合梁上进行三点曲测试.
- 在40个复合磁盘上使用里埃变换红外光谱法 (FTIR) 确定DC.
主要成果:
- 在测试的红细胞中发现了FS和DC的显著差异 (p < 0.001).
- 卡里斯马®钻石ONE表现出最高的FS,而Omnichroma显示出最低的FS.
- 维特拉APS Unique的直流电流最高,其次是Omnichroma和Charisma® Diamond ONE;菲尔特克TM Z250 XT的直流电流最低.
结论:
- 通用单色RBC通常提供良好的屈曲强度,Omnichroma是由于显著低FS的例外.
- 与传统的纳米混合复合材料相比,通用单色RBC的转化程度更高.
- 这些发现突显了通用单色RBC的潜力,同时表明需要根据特定的临床需求仔细选择材料.
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