产胺增强了牙基质的特性,并促进了对甲基酸树脂的粘附
Mariana Reis-Havlat1, Ariene A Leme-Kraus2, Yvette Alania1
1Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL 60612, United States.
概括
富含产素酸盐 (PDg) 的rhodiola rosea (RR) 分数增强了牙原蛋白的粘弹性和粘合性. F2 分数显示出卓越的性能,表明生物模拟牙科应用的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料 牙科材料
- 自然产品 化学 化学
背景情况:
- 牙原蛋白降解会影响牙修复的寿命.
- 自然化合物被探索为牙科中的仿生应用.
- 罗迪奥拉 (RR) 含有具有潜在生物活性的益尔菲尼丁酸盐 (PDg).
研究的目的:
- 为了研究罗迪奥拉 (RR) 分数的生物活性和稳定性,作为prodelphinidin gallate (PDg) 的来源.
- 分析RR分数对牙原蛋白粘弹性质的影响.
- 为了评估 RR 分数对树脂 - 丁粘合性能的影响.
主要方法:
- 动态机械分析 (DMA) 评估了90天在模拟体液 (SBF) 中用RR分数 (F1-F4) 处理的牙基质的粘弹性特性 (E',E",E*,tan δ).
- 微拉力键强度测试和共聚焦激光扫描显微镜在SBF中经过1天和90天后评估了树脂-丁接口特性.
- 统计分析包括双向和单向ANOVA以及后期测试.
主要成果:
- 与对照组相比,RR分数显著增加了牙矩阵复合体和存储模块.
- 在树脂-丁丁接口上,F2 分数显示出最高的微拉伸键强度 (43.9 MPa).
- RR处理导致了稳定的表面修饰,增强了原甲基烯酸树脂相互作用.
结论:
- 来自Rhodiola rosea的prodelphinidin酸盐作为牙的强大和稳定的仿生剂.
- F2分量的增强疗效与其聚合度和烯基基图案有关.
- RR 分数在改善牙粘合剂的耐用性和粘合方面表现有前途.
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