牙龈上皮中的中性白细胞和单核细胞

本研究对健康龈（Ｈ）、边缘性龈炎（Ｇ）、青少年牙周炎（ＪＰ）和成人牙周炎（ＡＰ）牙龈上皮内的中性白细胞（ＰＭＮ）和单核细胞及龈下菌进行了定量观察，并分析了它们之间的关系。结果表明，ＪＰ组袋上皮和表面上皮内的ＰＭＮ显著低于Ｇ组和ＡＰ组。ＡＰ组的ＰＭＮ数均明显高于其它三个组。直线相关分析表明，沟（袋）上皮ＰＭＮ数与龈下能动菌％呈正相关（ｒ＝０．５３６．Ｐ＜０．０１）。单核／吞噬细胞用ＮＡＥ方法显示主要位于结合上皮和袋上皮深处，三个炎症组的数目均高于健康组，而这些部位未见郎格罕氏细胞，可能此处的单核细胞替代了郎格罕氏细胞的功能。

Neutrophils and monocytes in gingival epithelium]

Neutrophils and monocytes of gingival epithellium in health gingiva(H),marginal gingivitis(MG),juvenile periodontitis(JP),adult periodontitis(AP) and subgingival bacteria were quantitated and analyzed,The results showed that the numbers of PMN within either pocket epithelium or oral gingival epithelium in JP were significantly lower than in AP and G.The amounts of PMN in AP were much larger than other three groups.Positive correlation between the number of PMN in sulcular pocket epitelium and the motile bacteri of subgingival plaque was demonstrated by correlation analysis.Monocytes mainly presented in deep pocket and junctional epithelum which were stained by NAE method,however very few Langhans cells were seen in these areas.