提出新的标准,用于测试纸保存材料的溶解性
Nesma Ali1, Ben A Scheven2, William M Palin2
1School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
概括
制定重要的脉治疗材料的标准至关重要. 这项研究使用修改的ISO标准评估了材料溶解度,揭示了临床相关性至关重要的方法依赖结果.
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:
- 标准化测试对于牙科材料质量控制中的可重复数据至关重要.
- 目前缺乏对重要脉治疗材料的既定标准,这阻碍了可靠的评估.
- 制定标准化的方法对于评估纸保存材料的性能至关重要.
研究的目的:
- 开发一种新的标准来评估用于生命脉治疗的材料的可溶性.
- 在各种测试条件下评估Biodentine,TheraCal和Activa的可溶性.
- 调查不同方法对纸保存材料的溶解度测量的影响.
主要方法:
- 使用ISO 4049:2019 (S1) 和ISO 6876:2012 (S2) 标准对Biodentine,TheraCal和Activa进行溶解性测试.
- 修改的方法包括改变溶液体积 (S1M,S2M),使用杜尔贝科修改的介质 (DMEM) (S1D,S2D) 和定期的溶液变化 (S1P,S1MP).
- 使用扫描电子显微镜 (SEM) 和X射线衍射 (XRD) 测试前后的材料特征.
主要成果:
- 根据使用的测试方法,溶解度值有很大差异.
- 根据两种ISO标准 (p ≤0.05) 生物氨酸的溶解度较低,溶液体积减少.
- 在与ISO 4049:2019进行测试时,TheraCal和Activa在干燥后显示负的溶解度值,而Biodentine显示了依赖于方法的微观结构变化.
结论:
- 活力脉治疗材料的溶解度高度依赖于测试方法.
- 当前的标准测试方法可能不能准确地反映临床条件.
- 制定临床相关的测试标准对于有意义地评估纸保存材料至关重要.
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