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1·Objective:To investigate spatiotemporal expression of ADAM28 in mouse tooth germ development.

目的：研究ADAM28在小鼠牙胚发育中的时空分布。

2·Conclusion: Shh and its receptor are expressed during the late bell stage of mouse tooth germ.

结论：Shh及其受体Ptc在小鼠牙胚钟状晚期有表达。

3·RESULTS: P75NGFR was expressed at all stages of mouse tooth germ development with different degrees.

结果：P 75ngfr在小鼠牙胚发育各期均有不同程度的表达。

4·Conclusion: Bone remodel around the permanent tooth germ resulted from primary tooth orthodontic movement.

结论：狗乳牙正畸移动后恒牙胚牙周组织发生骨改建。

5·Result: BSP and OPN have different temporal and spatial distribution mode during mouse tooth germ development.

结果：BSP、OPN在牙胚发育中的时空分布模式存在差异。

6·Objective: to establish the model of the cultured tooth germ in vitro and examine the effect of fluoride on it.

目的：建立小鼠牙胚发育的体外培养模型，初步研究过量氟对小鼠牙胚发育的影响。

7·RESULTS:SHIP positive signals were observed in the osteoclasts, odentoclasts and enamel of permanent tooth germ.

结果：SHIP在破骨细胞、破牙细胞和恒牙胚釉质层表达阳性。

8·AIM: to investigate tooth-forming ability of tooth germ cells from postnatal rats by implanting into renal capsule.

目的：将出生后牙胚细胞接种于肾被膜下探讨其成牙能力。

9·The permanent tooth germ plays an important role in physiological root resorption of deciduous tooth, but not the alone factor.

恒牙胚是引起乳牙生理性根吸收的重要因素，但却非唯一的因素。

10·In this case the cells were taken from what is known as the tooth germ, the little bud that appears before an animal grows a tooth.

在这一研究中，这些细胞来源于所谓的牙胚即动物出牙前发生的幼芽。