用于生命性脉治疗的多功能草基生物材料:体内评估
Sharon S Namazi1, Pedro Henrique Chaves de Oliveira1,2, Neville J McDonald1
1Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Ave, Ann Arbor, MI, 48109, USA.
Odontology
|November 17, 2025
概括
凝甲基/ (GelMA/AV) 支架与矿物三氧化物聚合物 (MTA) 结合,促进了纸封装中的硬组织形成. 然而,这种组合并没有减少炎症或超过MTA.
科学领域:
- 生物材料科学 生物材料科学
- 恢复性牙科 恢复性牙科
- 组织工程是组织工程.
背景情况:
- 纸封闭旨在在暴露后保持牙纸的活力.
- 矿物三氧化物聚合物 (MTA) 是一种常见的纸封装剂.
- 凝甲基/ (GelMA/AV) 支架显示了组织再生的潜力.
研究的目的:
- 评估单独和与MTA一起的GelMA/AV支架,用于在老鼠中进行纸封闭.
- 评估对纸炎和矿化组织形成的影响.
- 为了比较GelMA/AV + MTA与单独使用MTA.
主要方法:
- 通过电旋和光交联来制造GelMA/AV (70:30) 纳米纤维.
- 在老鼠的牙中,用GelMA/AV,GelMA/AV + MTA或MTA处理的纸暴露模型.
- 组织学,免疫组织化学和微型CT分析在7日和28日.
主要成果:
- 所有组都显示出新的硬组织形成;GelMA/AV + MTA与MTA相当.
- 凝MA/AV + MTA的细胞数量较低,但与MTA相似的M1/M2巨分化.
- 凝MA/AV + MTA表现出尼斯和DMP1的表达,表明矿物化.
结论:
- 在MTA下方的GelMA/AV亚层支持MTA驱动的矿化,但不减少炎症.
- 在这种老鼠肉模型中,这种组合并没有增强超出MTA的矿化.
- 为了临床使用,需要进一步优化AV配方和进行更长的研究.
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