表面修改的人类脱矿化牙矩阵用于骨再生:物理化学特征和骨质细胞生物相容性
Natwara Chokwattananuwat1, Srisurang Suttapreyasri1
1Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Songkhla, Thailand.
Regenerative biomaterials
|April 12, 2024
概括
脱蛋白化人类非矿物化牙矩阵 (dpDTM) 的表面修饰改善了其用于骨再生的特性. 酸蚀刻和原涂层增强了骨质母细胞的活性和增殖,对骨移植应用有希望.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 牙科材料 牙科材料
背景情况:
- 由于其组成,牙矩阵是潜在的骨移植材料.
- 目前的脱蛋白化人类非矿物化牙矩阵 (dpDTM) 在毛孔大小和表面粗性方面存在局限性.
- 需要表面修改策略来增强dpDTM的骨质导电潜力.
研究的目的:
- 使用酸蚀刻和原涂层制造表面修饰的dpDTM.
- 为了评估修改后的dpDTM脚手架的物理化学和生物特性.
- 评估修改后的dpDTM在骨再生应用中的潜力.
主要方法:
- 脱蛋白化人类非矿物化牙矩阵 (dpDTM) 通过酸蚀刻 (A-dpDTM) 和原涂层 (C-dpDTM) 进行了修改.
- 分析了包括孔径大小,表面粗度,成分 (Ca/P比率,酸结晶性) 和降解率在内的物理化学性质.
- 生物评估包括评估骨质母细胞的附着,增殖和分化在支架上.
主要成果:
- 与未经修改的dpDTM相比,表面修改的dpDTM (A-dpDTM和C-dpDTM) 呈现出较大的孔径和表面粗度.
- 在C-dpDTM中通过检测证实了原不动化.
- 所有的脚手架都保持了1.67的Ca/P比,酸是唯一的组成部分.
- 120天后,与dpDTM (10%) 相比,C-dpDTM (30%) 和A-dpDTM (20%) 的降解率显著增加.
- 骨质细胞的附着,增殖和分化在修改后的支架上得到了增强,特别是C-dpDTM.
结论:
- 对dpDTM表面的修改显著提高了其物理化学特性,包括孔径大小和表面粗度.
- 修改后的dpDTM支架,特别是C-dpDTM,通过促进骨质母细胞反应,显示出改善的生物活性.
- 这些发现凸显了表面修饰dpDTM作为骨再生疗法的有希望的生物材料的潜力.
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