目的：观察体外培养的鼠磨牙牙胚发育过程的组织学变化。
Objective: to study the histological characteristic change during the development of mouse molar tooth in vitro.
目的：研究肿瘤坏死因子受体相关因子6 (TRAF6)在大鼠牙胚发育过程中的表达并探讨其意义。
Objective: to study the function of tumor necrosis factor receptor-associated factor 6 (TRAF6) in the development of rat dental germ.
结果：牙胚发育过程中的蕾状期、帽状期、钟状晚期基质金属蛋白酶- 2 （MMP - 2 ）均有表达，但以钟状期前牙本质细胞的表达最明显。
RESULTS: The expression of MMP-2 could be found in bud stage , cap stage and later time of bell stage.
结果：牙胚发育过程中的蕾状期、帽状期、钟状晚期基质金属蛋白酶- 2 （MMP - 2 ）均有表达，但以钟状期前牙本质细胞的表达最明显。
RESULTS: The expression of MMP-2 could be found in bud stage , cap stage and later time of bell stage. A high level of MMP-2 was confined to secretory odontoblas…
目的：探讨犬乳恒牙替换过程中血管内皮生长因子（VEGF）在犬恒牙胚发育中的表达及意义。
Objective To study the expression and significance of Vascular Endothelial Growth Factor(VEGF) in the development of dogs permanent teeth germs.
乳恒牙替换是动物牙齿及颌面部生长发育的重要阶段，包含有乳牙根、牙槽骨的吸收、恒牙胚的发育和恒牙萌出等一系列复杂的生理过程。
The replacement of primary and permanent teeth is an important part that belongs to the growth and development of animals' teeth and maxillofacial region.
乳恒牙替换是动物牙齿及颌面部生长发育的重要阶段，包含有乳牙根、牙槽骨的吸收、恒牙胚的发育和恒牙萌出等一系列复杂的生理过程。
The replacement of primary and permanent teeth is an important part that belongs to the growth and development of animals' teeth and maxillofacial region.
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