齿龈内阿米巴(Entamoeba gingivalis简称E·g)是寄居人口腔里一种最常见的原虫。《人体寄生虫学》。记载了它“寄生于齿间,齿龈化脓时多见,但并非本虫所致”。沈、黄二氏曾于20多年前有过报道。我们用电脑检索1980—1982年国外英、俄文资料,得到少量文献,均认为E·g与口腔 Entamoeba gingivalis (E. g) is one of the most common protozoan parasites in the mouth. “Human parasitology.” Record it “parasitic in the interdental, pus more common gums, but not caused by the insects.” Shen, Huang Ershi had been reported more than 20 years ago. We use computer to retrieve the data of British and Russian in 1980-1982 and obtain a small amount of literature,