1.原發(fā)性牙本質(zhì)原發(fā)性牙本質(zhì)(primary dentin):牙發(fā)育過程中所形成的牙本質(zhì),構(gòu)成了牙本質(zhì)的主體。Primary dentin :Primary dentin is the dentin that develops during tooth development and forms the main body of dentin.2.罩牙本質(zhì)罩牙本質(zhì)(mantle dentin):最先形成的緊    （共 1761 字）     [閱讀本文] >>