基于酸盐的密封剂的物理和机械性能
Shannon Wong1, Xiaofei Zhu1, Tun-Yi Hsu1
1Department of Endodontics, Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA.
Odontology
|January 25, 2026
概括
与基于酸盐的密封剂相比,酸盐 (Sr-Si) 内牙密封剂显示出更好的流动性和透到牙管道. 这些发现表明,Sr-Si密封器在内牙科应用中具有有前途的物理和机械性能.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
- 生物材料是一种生物材料.
背景情况:
- 牙内密封剂对于根管填充至关重要.
- 基于酸的密封剂被广泛使用.
- 评估像酸密封剂这样的新材料对于改善内牙治疗结果至关重要.
研究的目的:
- 为了比较新型酸盐 (Sr-Si) 密封剂与传统的酸盐 (Ca-Si) 密封剂的物理和机械性能.
- 为了评估密封器的流量,定时间,薄膜厚度,辐射透明度和透到牙管道.
主要方法:
- 通过能量分散式X射线光谱学 (EDS) 分析的元素组成.
- 使用扫描电子显微镜 (SEM) 评估的粒子大小.
- 标准ISO 6876/2012对流量,定时间,薄膜厚度和放射性透明度的测试.
- 定制压力流量测试以模拟牙管透.
- 在抽取的牙中,SEM观察密封剂透的情况.
主要成果:
- 与Ca-Si密封剂相比,Sr-Si密封剂表现出明显更好的流动性和放射性透明度.
- 对于Sr-Si密封剂来启动流入模拟牙管道所需的较低的力 (11.00 N 与 21.51 N 相比).
- 与Ca-Si密封剂相比,SEM分析证实Sr-Si密封剂在牙管道中透得更深.
结论:
- 根据体外标准,Sr-Si密封剂具有有利的物理和机械性能.
- 改善的流动性和透性表明潜在的临床优势.
- 进一步的临床试验是必要的,以确认长期的临床适用性.
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