论文部分内容阅读
本研究取材自1个15岁的病人,临床见牙龈正常。用透射电镜观察上皮与根面牙骨质的附着,在低倍镜下可分为两个区:根尖区和牙冠区。在根尖区见上皮与根面并不适应,半桥粒间空隙较大,而牙冠区的上皮与参差不齐的根面银适应。在高倍镜下,根尖区的上皮细胞边界蜿蜒弯曲,由于细胞边界内陷,上皮附着被空隙隔断,半桥粒非常薄,非常稀少。有的地
This study was drawn from a 15-year-old patient with clinically normal gums. Transmission electron microscopy was used to observe the attachment of the epithelium to the root cementum. At low magnification, it can be divided into two regions: apical region and coronal region. In the apical region see the epithelium and the root surface does not adapt to the half-bridge interstitial space larger, while the coronal area of the epithelium and uneven root surface silver to adapt. Under high magnification, the apical region of the epithelial cell sinuses meandering. Due to the invagination of the cell borders, epithelial attachment is interrupted by voids, and the hemidesmosome is very thin and very sparse. Somewhere