所属栏目:牙体组织与解剖形态彩色图谱
横纹(cross striations):为釉柱上有规律间隔的细线,横纹之间的距离约为 4μm,相当于釉基质每日形成的量。横纹处矿化程度稍低,故当牙轻度脱矿时横纹较明显。Cross striations:Enamel rods have regularly spaced cross striations and the distance between the ......(本文共 424 字 , 1 张图) [阅读本文] >>