口腔牙菌斑中的幽门螺杆菌

报道用快速尿素酶法、免疫荧光染色和细菌培养法及电镜观察检测４０例消化性溃疡、慢性胃炎和胃癌患者牙菌斑中的幽门螺杆菌（Ｈｐ），同时从胃粘膜活检做嗜银染色（ＷＳ）和尿素酶试验检测Ｈｐ。结果发现，多数患者的牙菌斑中可能有大量Ｈｐ存在，牙菌斑中的Ｈｐ形态、生化特性和免疫学特性、培养条件均与胃粘膜Ｈｐ相似，说明牙菌斑中很可能有Ｈｐ寄生，它与胃粘膜Ｈｐ可能相同。

HELICOBACTER PYLORI IN THE DENTAL PLAQUE

elicobacter pylori (Hp)were detected in the dental plaque in 40 patients with peptic ulcer,chronic gastritis or gastric caneer with rapid urease test,anti-Hp fluorescein-labelled antibody staining,bacterial culture and electronic microscopy.At the same time,biopsy specimens from the gastric antrum of these patients were studied with WS staining and rapid urease test to detect Hp.The results show that agreat lot of Hps is present in most of the patients' dental plaque The morphological, biochemical and immunological characteristics of the Hp in the dental plaque are similar to those Hp in the gastric mucosa. The above results reveal that the Hp in the dental plaque may be identical with those in the stomach.