牙周膜

Res ults: The maxillary central incisor was similar to the maxillar y lateral incisor in stress distribution. The highest stresses were observed in the root surface, the liwest in the periodontal ligament, the alveolar bone between them .

结果：上颌中、侧切牙的应力分布基本相同；上颌中、侧切牙及其支持组织的应力分布不均匀，牙根部受应力最大，牙槽骨次之，牙周膜最小。

Secondly, the self-adaptive models of porcelain, metal base, cement, dental root, gutta percha point, periodontal membrane, cancellous bone and cortical bone were reconstructed based on the post-core crown parameters.

将读取数据导入Pro/E软件中，先将桩核冠进行参数化（参数包括桩核冠的直径、长度、锥度、倒角等等），同时根据桩核冠的参数，分别建立可随桩核冠参数变化而自适应变化的饰瓷、金属基底、粘固剂、牙本质、牙胶尖、牙周膜、松质骨和皮质骨的实体模型。

The expression of sTNFRⅠin transfected pericementum cell culture supernatant was higher than the contrast groups.

质粒PcDNA3.1-sTNFRⅠ可以在牙周膜细胞中高效表达，并且可以抑制肿瘤坏死因子的活性。

Objective: to establish a new model to test the resistance to sliding according to the fact that there is few researchers who mention pericementum which has some effect of resistance to sliding when they study the friction of archwire-bracket.

目的：鉴于目前在测定弓丝与托槽阻力时均没有考虑到牙周膜对滑动阻力的影响，因此本实验尝试建立一种新的模型用于滑动阻力的测试。

Take the advantage of epoxide resin's property, a model was made, in which the Youth module proportion of tooth, pericementum and alveolar bone was in accordance with the somatic data. 2. On this model, 3 types of brackets were bonded to the tooth.

利用环氧树脂能够模拟不同材料的弹性模量的特性，制作符合人体实际弹性模量比例的牙，牙周膜和牙槽骨的模型，并在不同象限模拟不同程度的错情况。

The soluble human tumor necrosis factor ; human tumor necrosis factor ; plasmid ; pericementum cell ; tranfected

可溶性肿瘤坏死因子；肿瘤坏死因子；质粒；牙周膜细胞；转染

Methods: a model, in which the youth module proportion of tooth, pericementum and alveolar bone was similar to the somatic data was made taking the advantage of epoxide resin's property.

利用环氧树脂能够模拟不同材料的弹性模量的特性，制作相似于人体实际弹性模量比例的牙、牙周膜和牙槽骨的模型。

Objective To establish an animal model of periodontal injury caused by mini-implants and study the corresponding pathological changes of periodontium.

目的 建立兔牙周膜微型种植体损伤的模型，观察其损伤后的病理变化以及组织愈合、修复的过程和方式，并探讨这种损伤可能造成的后果和影响。

In this paper, we used three di- mensional finite element method to calculate the stresses in the periodontium of abutments.

本研究采用三维有限单元法对固定桥基牙牙周膜内应力的分布规律进行了计算分析。

The control culture showed normal development of HERS and the periodontium, resembling that in vivo.

对照培养组显示如体内一样，HRES和牙周膜正常发育。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。