Hals E
Scand J Dent Res. 1983 Feb;91(1):1-7. doi: 10.1111/j.1600-0722.1983.tb00768.x.
Human coronal dentin was studied by light microscopy and microradiography. The material comprised 50 permanent and 10 primary anterior teeth and microradiographs of 63 primary anterior teeth from a previous study. Both intact and worn teeth were examined. Ground sections in the long axes of the crowns in the buccolingual and mesiodistal planes were prepared, as well as transverse sections. A few crowns were also examined in toto. A system of giant tubules extending from the border of the pulpal cavity could be followed, though not continuously, through the secondary and primary dentin almost to the incisal dentinoenamel junction was observed. The lumina of the tubules were 5-40 microns wide and bordered by an approximately 10-microns-wide, usually hypermineralized rim of dentin in which only a few dentinal tubules were clearly discernible. The giant tubules were located along the mesiodistal axes of the teeth. The number of such tubules varied between 0 and 30.
通过光学显微镜和显微放射照相术对人类冠状牙本质进行了研究。材料包括50颗恒牙和10颗乳牙前牙，以及来自先前研究的63颗乳牙前牙的显微放射照片。对完整和磨损的牙齿均进行了检查。制备了牙冠在颊舌向和近远中向平面的长轴方向的磨片，以及横切片。还对一些牙冠进行了整体检查。观察到一个从牙髓腔边界延伸的巨大小管系统，尽管不是连续的，但可以追踪到通过继发性和原发性牙本质几乎到达切端牙本质釉质交界处。小管腔宽5 - 40微米，其边界是一个约10微米宽的、通常矿化过度的牙本质边缘，其中只有少数牙本质小管清晰可见。巨大小管沿着牙齿的近远中轴排列。此类小管的数量在0至30之间变化。
