430例口腔病患者齿龈内阿米巴的观察

AN OBSERVATION REPORT OF ENTAMOEBA GINGIVALIS IN 430 CASES OF ORAL DISEASE

用直接涂片和苏木素染色两种方法检查齿龈内阿米巴,430例口腔病患者中检出211人,检出率为49.07±2.41%,其中牙周炎为60.28±4.12%,冠周炎为55.31±7.25%,龈缘炎为50.00±14.43%,龋齿为39.36±3.56%.原虫的感染率似与职业、性别以及口腔内pH无关,但有随年龄的递增而上升的趋势.已婚者的检出率高于未婚者.牙周炎患者的阿米巴滋养体吞噬白细胞的均数(3.8个)高于龋齿患者(0.9个).从吞噬白细胞数和感染率看,该原虫可能具有间接致病作用.

An observation of entamoeba gingivalis is made in 430 cases with oral disease. The results show that the total detectable rate is 49.07±0.34%. The detectable rates of parodontitis, pericoronitis, marginal gingivitis and dental caries are 60.28±4.12%, 55.31±7.25%, 50.00±14.43% and 39.36±3.56% respectively. It seems that the detectable rate has no relation to the sex, occupation and pH in the mouth. There is a tendency that the tedectable rate increases with the age. It is higher in the married than in the unmarried. The average number of the leukocytes the amoebic trophozoites of the patients with parodontitis phagocytize is higher than that of the phagacytized leukocytes of the patients with dental caries. In view of the number of phagocytized leukocytes and the rate of infection, these amoebae might be indirectly pathogenic.