牙

Keywords: odontoblast; immortalization; cell line; hTERT; dentin

中文关键词：成牙本质细胞；永生化；细胞系；hTERT；牙本质

Result: Expression of Cbfa1/Runt2 was detected both in dental pulp tissue and stem cells, but not in gingival tissue and cells. Conclusion: Cbfa1/Runt2 may be a transcriptional factor that is involved in odontoblast differentiation.

Cbfa1／Runt2可能参与成牙本质细胞分化的调控，但其在成牙本质细胞分化过程中所起的作用还需进一步研究。

In an organ culture system under a three-dimensional microenvironment that provides the conditions needed for odontoblast differentiation, a row of odontoblasts can be induced Kikuchi et al.

牙胚器官培养的三维微环境可诱导形成栅栏状排列的成牙本质细胞。

The expression of TRAF6in cultured cell line MDPC-23was determined at protein level,it intimated that TRAF6may be a new found signal factor which participates in the progress of odontoblast development and mineralization.

因此，我们认进一步研究TRAF6在成牙本质细胞和成釉细胞中的表达和功能，揭示TRAF6在牙胚发育和矿化中可能起到哪些重要作用十分必要。

First, the majority of change in orthodontics appears to be dento-alveolar in nature.

首先，大多数的变化正畸似乎牙牙槽骨的性质。

All the patients with 8-11 mm height of residual bone in the posterior maxilla underwent sinus floor elevation and implant placement using osteotome without any bone grafts simultaneously.

患者均因上颌后牙种植区牙槽嵴顶至上颌窦底之间的剩余骨高度在8～11mm，无法植入足够长度的种植体，因而采用上颌窦底冲压法局部提升上颌窦底骨板及黏骨膜，提升幅度为2～5mm。

Results: All patients were treated to Class I molar and normal overjet and overbite relationships at posttreatment,.

结果：两组患者均达到了磨牙中性关系，前牙达到正常的覆盖、覆关系，并产生了以下变化。

It would lower the degree of Deep overbite malocclusion that induced the vertical growth during the period of growth.

磨牙伸长的同时有下颌升支的代偿性生长；在生长期引导垂直向生长可有效地改善深覆牙合畸形。

Maxillary teeth were retracted,and the overjet and overbite were adjusted to right relations,and soft convex tissues face type was improved.

上颌牙齿前突减数矫治，有助于上颌和上牙弓的突度减小，使软硬组织面型之间的形态结构一致，特别对上牙弓突度的改善是肯定而持续的。

The sagittal inclinations to the palatal plane of the first and second maxillary molars were measured on panoramic tomography.

研究样本分为两组，第一组的研究对象（n=30）具有完整的正常牙列，包括上颌第三磨牙。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐