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Name: John
Status: Student
Age: 20s
Location: N/A
Country: N/A
Date: N/A 

I am working on a senior seminar project.

Question: Is there such a protozoan as "Giardia gingivalis"? I cannot seem to find anything on this at all. If not, do you have other suggestions of human pathogenic protozoa that cause oral disease? (my emphasis is dentistry, obviously).

Giardia is a genus of protozoa, but G. gingivalis is not known to me. There are several bacterial species causing periodontal diseases, of which porphyromonas gingivalis is a common one.

Do you mean Entamoeba gingivalis? this is a parasite that causes periodontic infections. A search for this organism in the PubMed (public database at Natl. Libr. Med.) resulted in 45 papers, several of which in foreign language. Seems that there is not a lot known on this organism. Would be a good subject for your study?

For a start, see Clin Infect Dis 1998 Sep;27(3):471-3 about E. gingivalis in HIV-infected patients, or t_uids=7844431&dopt=Abstract

which is the abstract of a paper on the incidence of the infection.

Good luck.

Trudy Wassenaar

I'm not aware of a protozoan called Giardia gingivalis. However, Giardia lamblia is a parasite of the intestinal tract that usually is passed by poor sanitation conditions (like a water source contaminated with human waste) and causes acute diarrhea lasting typically a couple of weeks. There's pretty complete and intelligible information on that parasite at a site at Tulane:

Christine Ticknor
Ph.D. Candidate
Yale University
New Haven, Connecticut

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