所属栏目:牙体组织与解剖形态彩色图谱
初级弯曲(primary curvature):牙本质小管在牙尖部及根尖部的小管较直,而在牙颈部则弯曲呈“~”形,称为初级弯曲,其近牙髓的一端较粗,越向表面越细且排列稀疏。Primary curvature:Dentinal tubules at the tip of the cusp and theapex are straight, while a ......(本文共 359 字 , 1 张图) [阅读本文] >>