牙周膜的

Objective To evaluate the effect of enamel matrix protein on the attachment and proliferation of periodontal ligament cells on diseased cementum surfaces in vitro.

目的观察釉基质蛋白对牙周膜细胞在牙周炎患牙牙骨质根面上附着和增殖的影响。方法用EMP处理的牙周炎患牙根片为实验组，用生理盐水处理的患牙根片和健康牙根片分别作为对照。

Objective: To evaluate the effects of PRP on the proliferation of periodontal ligament fibroblasts and the implantation of autologous growth factors and/or PDLFs to canine artificial furcation defects.

目的 研究自身生长因子PRP对牙周膜成纤维细胞增殖的影响，并和自体PDLFs移植修复犬慢性牙周组织缺损。

When tooth week the bag bag form after, alter to make piling up of food remnant, the tooth germ spot and tooth stone calculus etc., this kind of lately piles up the further breakage deeper tooth week film again, the result of thus continuous vicious cycle, eventually go to a tooth to support to organize all breakages for week almost exhausted, but make tooth difficult to escape to pull out of bad luck.

当牙周囊袋形成后，更易使食物残渣、牙菌斑和牙结石等的堆积，这种新的堆积又更进一步的破坏更深的牙周膜，如此不断的恶性循环的结果，终至牙周支持组织全部破坏殆尽，而使牙齿难逃拔除的恶运。

Methods Human PDLC cultured in vitro was collected and seeded on Col, HA, HA/Col scaffolds crosslinked by carbodiimide. The influences of scaffolds on cell adhesion and growth were observed by MTT assay. The growth of human PDLC on scaffolds was observed through inverted phase contrast microscope and scanning electron microscope.

将体外培养的人牙周膜细胞接种到碳化二亚胺交联的胶原、透明质酸及透明质酸/胶原支架上；MTT法检测支架对人牙周膜细胞黏附、生长的影响；并用倒置相差显微镜和扫描电镜观察形态变化。

The defects were analysed histologically and histomorphologically after healing.

此结果显示牙周膜细胞膜片可作为牙周再生新的治疗方式。

To investigate the effect of insulin-like factor-Ion the proliferation activity of human periodontal ligamental fibroblasts.

目的：研究胰岛素样生长因子Ⅰ对人牙周膜成纤维细胞增殖能力的影响，为牙周组织改建工作提供理论依据。

BACKGROUND: Guided tissues regeneration has been successfully used in the treatment of periodontal diseases by using biocompatible membrane to prevent tooth epithelial cell growing towards root and to facilitate the formation of a certain gap which is favorable for periodontal membrane cells to occupy the surface of the root, thereby to rebuild the peridental structure.

背景：引导组织再生已成功地应用到牙周病的治疗，应用生物相容性膜，依靠其机械屏障作用能阻止牙龈上皮根向生长，并形成一定的间隙以利于牙周膜细胞占据根面，进而重建牙周结构。

After bridge insertion, the pontic of fixed bridge re- stored additional force, but the change of stress in the peri- odontium of premolar and molar is very diffierent.

固定桥修复后桥体承受了增加的载荷，双尖牙和磨牙牙周膜应力的变化规律是不相同的，双尖牙牙周膜应力的增加幅度大于磨牙。

To the best of our knowledge, this is the first study on the global gene expression of MSCs cocultured with periodontal ligament cells. A particular humoral factor released from periodontal ligament cells is suggested to affect differentiation and proliferation in MSCs.

本试验是第一篇关于骨髓间充质干细胞和牙周膜细胞共培养后基因表达的全面研究，我们认为来自牙周膜细胞的体液因素将影响骨髓间充质干细胞的增殖和分化。

Materials and Methods: the HPDLFs were isolated and cultured in vitro from healthy premolars of orthodontic patients, which were 10~14 years old.

材料和方法：取材自临床上10～14岁青少年需要拔除的健康的正畸牙，在体外分离、培养并纯化人牙周膜成纤维细胞，建立人牙周膜成纤维细胞有限细胞系。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。