''Olsenella uli'' is a Gram-positive bacterium from the genus of ''

Olsenella ''Olsenella'' is a Gram-positive, non-spore-forming, obligate anaerobic and non-motile bacterial genus from the family ''Atopobiaceae The ''Atopobiaceae'' are a family of Actinomycetota The ''Actinomycetota'' (or ''Actinobacteria'') are ...

'' which has been isolated from the

gingival crevice The gingival sulcus is an area of potential space between a tooth and the surrounding gingival tissue and is lined by sulcular epithelium. The depth of the sulcus (Latin for ''groove'') is bounded by two entities: apically by the gingival fi ...

of humans. ''Olsenella uli'' can cause endodontic infections.

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