操纵方法和储存环境对丰富混合水泥微观结构,化学和机械性能的影响
Leyla Roghanizadeh1, Hassan Torabzadeh2, Ardavan Parhizkar1
1Iranian Center for Endodontic Research, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 1983963113, Iran.
International journal of biomaterials
|January 29, 2025
概括
干燥丰富混合物 (CEM) 水泥增量,并将其存储在酸盐缓冲盐水 (PBS) 或蒸水中,可以提高机械性能和微观结构. 这种方法导致更快的沉水泥,具有更好的耐受性和潜在的酸形成.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料 牙科材料
- 材料工程 材料工程 材料工程
背景情况:
- 丰富混合物 (CEM) 水泥是牙周内科的重要材料.
- 了解操纵和储存效应对于最佳的临床性能至关重要.
- 处理过程中的变化会影响CEM水泥的物理,化学和微观结构完整性.
研究的目的:
- 调查不同的操纵和储存条件如何影响CEM水泥性能.
- 为了比较各种CEM水泥处理的微结构,化学和机械结果.
- 为了确定增强CEM水泥性能的最佳条件.
主要方法:
- CEM水泥样品被分为四组:未在化器中干燥 (ND-I),在化器中干燥 (D-I),在酸盐缓冲盐水中干燥 (PBS) (D-P) 和在蒸水中干燥 (D-W).
- 分析包括维克尔微硬度,压力强度,FTIR,XRD和7天化后的SEM-EDS.
- 统计分析使用了沙皮罗-威尔克,莱文,独立t,单向ANOVA和Tukey HSD测试.
主要成果:
- 未干燥组 (ND-I) 的定时间最长,但强度和微硬度最低.
- 酸盐缓冲盐水 (PBS) 储存 (D-P) 产生了最高的微硬度,而蒸水 (D-W) 则产生了最高的压力强度.
- FTIR和XRD证实了化学成分和晶体结构的变化,包括潜在的酸形成,受干燥和储存介质的影响.
结论:
- 在PBS或蒸水中干燥增量和储存CEM水泥导致更快的定和改进的机械性能.
- 这些方法促进了更均的微观结构和增强的水泥耐受性.
- 这些发现表明,在处理过程中模仿生理条件可以优化CEM水泥的临床疗效.
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