Westergaard J, Frandsen A, Slots J
Scand J Dent Res. 1978 Dec;86(6):421-9. doi: 10.1111/j.1600-0722.1978.tb00649.x.
The ultrastructure of the subgingival deposits on the root surfaces of teeth affected by juvenile periodontitis was studied on 12 teeth from nine individuals, 15--30 years of age. The deposits consisted of either microbial masses associated with a pellicle, or of a cuticular material almost free of bacteria. Gram-negative rods and filaments were the predominant microorganisms. "Corncob" configurations consisting of filamentous bacteria surrounded by Gram-positive cocci, and "bristle brush" formations comprising corncobs surrounded by long rods were observed in the superficial layer of the plaque. Spirochetes and flagellated rods constituted a major segment of the microflora. The present data indicated that the deep pockets in juvenile periodontitis harbor a sparse but relatively characteristic microbial population.
对9名年龄在15至30岁个体的12颗牙齿进行了研究，观察了青少年牙周炎患牙牙根表面龈下沉积物的超微结构。沉积物由与薄膜相关的微生物团块或几乎不含细菌的表皮物质组成。革兰氏阴性杆菌和丝状菌是主要的微生物。在菌斑表层观察到由革兰氏阳性球菌包围丝状菌组成的“玉米棒”结构，以及由长杆菌包围玉米棒组成的“刷毛刷”结构。螺旋体和有鞭毛的杆菌构成了微生物区系的主要部分。目前的数据表明，青少年牙周炎的深牙周袋中存在稀疏但相对有特征性的微生物群落。
