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1984年4月在南充市对口腔科门诊病人,用探针取齿龈基部、牙周袋、牙洞等部位的牙垢,进行生理盐水直接涂片、镜检,同时进行口腔疾病检查。 共检查556人,其中包括工人、机关人员、医务工作者、大学及小学学生、学龄前儿童。男328例,女228例。年龄5～67岁。查出口腔毛滴虫感染者45人,感染率为8％,其中与齿龈内阿米巴混合感染者,占总感染人数的80％(36/45),单纯感染者仅占20％(9/45)。在各年龄组中,年龄按0～10、11～20、21～30、31～40、41～50、51～60和60岁以上分组、各组的感染率依次为2.4％(2/85)、
April 1984 in Nanchong City, out-patient department of Stomatology, with the probe gingival base, periodontal pocket, dental calculus and other parts of the tartar, saline direct smear, microscopic examination, oral disease inspection at the same time. A total of 556 people were examined, including workers, government agencies, medical workers, university and primary school students, preschool children. There were 328 males and 328 females. Age 5 to 67 years old. 45 people were found to have Trichomonas vaginalis infection, the infection rate was 8%. Among them, 80% (36/45) of the total infected persons were infected with mixed gingivitis gingivalis, only 20% / 45). In each age group, the age groups were grouped according to 0 ~ 10,11 ~ 20,21 ~ 30,31 ~ 40,41 ~ 50,51 ~ 60 and 60 years old. The infection rates in each group were 2.4% (2/85 ),