Leptotrichia buccalis

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Leptotrichia buccalis
Scientific classification
Kingdom: Bacteria
Phylum: Fusobacteria
Class: Fusobacteria
Order: Fusobacterales
Family: Fusobacteriaceae
Genus: Leptotrichia
Species: buccalis
Binomial name
Leptotrichia buccalis
Trevisan 1879

Leptotrichia buccalis is an anaerobic, Gram-negative rod bacteria. It is a constituent of normal oral flora.

Leptotrichia buccalis can be clearly identified using live blood analysis in dark field. They have a distinct form, which separates them from other rod forms.


Almost every case of severe infection with Leptotrichia buccalis reported in medical literature occurred in patients with neutropenia.[1][2] Holistic dentists claim that dental granulomas following root canal fillings are likely to be caused by Leptotrichia buccalis. Very little can be found in dental or medical publications on the subject however. The majority of patients with Leptotrichia buccalis in their blood have root canal fillings, which would support the claim of holistic dentists.[citation needed]


  1. ^ Morgenstein, AA; Citron, DM; Orisek, B; Finegold, SM (1980). "Serious infection with Leptotrichia buccalis. Report of a case and review of the literature". The American Journal of Medicine. 69 (5): 782–5. doi:10.1016/0002-9343(80)90452-0. PMID 7001901. 
  2. ^ Weinberger, M; Wu, T; Rubin, M; Gill, VJ; Pizzo, PA (1991). "Leptotrichia buccalis bacteremia in patients with cancer: Report of four cases and review". Reviews of infectious diseases. 13 (2): 201–6. doi:10.1093/clinids/13.2.201. PMID 2041949. 

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