结论:伢典治疗磨牙龋可大大减少牙科恐惧症的产生。
Objective: to study the histological characteristic change during the development of mouse molar tooth in vitro.目的:观察体外培养的鼠磨牙牙胚发育过程的组织学变化。
A couple of days later near the same spot, fossil hunter Alemayehu Asfaw found a piece of a child's jaw with a first molar tooth.几天以后,在该目击地的附近,化石猎手阿勒迈耶胡·阿斯范(Alemayehu Asfaw)有又发现了一片带有第一臼齿的儿童颌骨化石。