Watanabe I S
Instituto de Ciências Biomédicas da USP.
RGO. 1990 May-Jun;38(3):227-9.
Dentinal surfaces of the root canal in the human permanent incisors were studied by using scanning electron microscope. The teeth were sectioned and fractured longitudinally. Dehydration were made in ethanol, dried, coated with gold and examined in a Jeol scanning electron microscope. The results revealed that the dentinal surface of the root canal of central upper incisor presents numerous foraminae of dentinal tubules. These possess variable diameters being that the smallest ranges from 1 to 2 microns and the greatest ranges from 2.5 to 4 microns. The intertubular dentinal surface is uniform in aspect and the peritubular dentine show several lines on the walls.
采用扫描电子显微镜对人类恒牙切牙根管的牙本质表面进行了研究。将牙齿纵向切片并折断。在乙醇中进行脱水，干燥，喷金，然后在日本电子扫描电子显微镜下检查。结果显示，上颌中切牙根管的牙本质表面有许多牙本质小管的小孔。这些小孔直径各异，最小的范围为1至2微米，最大的范围为2.5至4微米。管间牙本质表面外观均匀，管周牙本质壁上有几条线。
