Alexandersen V, Norén J G, Hoyer I, Dietz W, Johansson G
Laboratory of Biological Anthropology, Panum Institute, Copenhagen, Denmark.
Acta Odontol Scand. 1998 Feb;56(1):14-9. doi: 10.1080/000163598423009.
The purpose of this study was to examine ground sections of primary second molars and permanent first molars from the same jaws. Teeth from 11 individuals were collected from archaeologic sites in Sweden and Denmark. Longitudinal buccolingual sections were examined in a polarization light microscope and in a Philips scanning electron microscope (SEM). The seven teeth from Sweden appeared to have been subjected to environmental influences at their burial site, which had affected both the dentin and the enamel. The teeth from the Danish sites had a normal color, and no disintegration of the dentin was seen. The general morphologic appearance was normal in all primary and permanent teeth. The position of the neonatal line indicated a normal full-term gestational age. The observed accentuated incremental lines in both the primary and permanent enamel suggested periods of dietary changes, possibly related to periods of illness. SEM images of the surface area of the Swedish teeth showed an extremely porous enamel surface with severe changes in the prism structure as an effect of acid penetration. The Danish teeth did not show any marked changes in the enamel.
本研究的目的是检查来自同一颌骨的乳第二磨牙和恒第一磨牙的磨片。从瑞典和丹麦的考古遗址收集了11个人的牙齿。在偏光显微镜和飞利浦扫描电子显微镜（SEM）下检查纵向颊舌向切片。来自瑞典的七颗牙齿似乎在其埋藏地点受到了环境影响，这影响了牙本质和牙釉质。来自丹麦遗址的牙齿颜色正常，未观察到牙本质崩解。所有乳牙和恒牙的总体形态外观正常。新生儿线的位置表明胎龄正常。在乳牙和恒牙釉质中观察到的明显的生长线提示饮食变化时期，可能与疾病时期有关。瑞典牙齿表面区域的SEM图像显示牙釉质表面极多孔，棱柱结构因酸渗透而发生严重变化。丹麦牙齿的牙釉质未显示任何明显变化。
