相关实验视频

Updated: Aug 15, 2026

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Published on: July 10, 2014

一个带有非矿物化牙基质的双层不对称膜,用于引导骨再生

Wan-Hang Zhou¹, Yan-Fei Li²

¹Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.

Journal of the mechanical behavior of biomedical materials

|November 17, 2023

概括

一种新型的去矿化牙基质 (DDM) 载荷双层膜显示了指导骨再生 (GBR) 的前景. 这种DDM-PLGA/PLA膜在体外表现出了优异的屏障功能,骨质生成活性和免疫调节作用.

科学领域:

生物材料科学生物材料科学
再生医学是一种再生医学.
牙科材料牙科材料

背景情况:

导向骨再生 (GBR) 对于重建性牙科来说至关重要,以解决硬组织缺陷.
开发有效的屏障膜是成功GBR结果的关键.
脱矿牙质矩阵 (DDM) 提供了潜在的骨质导电性质.

研究的目的:

创建和评估一种新型的双层不对称膜,其中包括非矿物化牙基质 (DDM).
评估DDM载荷膜的屏障功能,骨质生活性和免疫调节能力.
为了研究这种膜在指导骨再生应用中的潜力.

主要方法:

双层DDM加载的多乳-协同甘油酸/多乳酸膜 (DPP双层膜) 使用电制造.
分析了膜特性,包括表面特征,细胞相容性和屏障功能.
在体外研究中评估了骨质生成活性 (基因表达,ALP活性) 和对巨细胞的免疫调节作用.

主要成果:

DPP双层膜表现出有利的表面特性和细胞相容性,具有显著的屏障功能.
这些膜显著促进了骨质基因表达 (ALP,OPN,OCN,Runx2) 和性酸酶活性.
DPP膜增强了M2巨细胞的两极分化,表明了抑制炎症的效果.

结论:

开发的DPP双层膜在体外显示出良好的生物安全性和骨质生成潜力.
这些膜显示出作为指导骨再生的候选材料的前景.
屏障,骨质生成和免疫调节性质的结合使得DPP膜对牙科应用具有吸引力.

关键词:

膜骨损失是指膜骨的损失.屏障膜是一种屏障膜.没有矿物质的牙基质.指导骨再生的指导骨再生新骨的再生再生.

更多相关视频

Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect

Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect

Published on: September 11, 2015

Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials

Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials

Published on: August 13, 2019

相关概念视频

Bone Remodeling

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.

Growth of Cartilage and Bone Tissue

Growth of Cartilage and Bone Tissue

Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...

The Bone Matrix

The Bone Matrix

Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...