Actinomyces radicidentis is a species of gram-positive bacteria in the genus Actinomyces, first isolated from infected root canals of teeth. Once characterized, it has since been found to be present in failed root canal treatments. Its pathogenicity has been suggested to be due to an ability to form cell aggregates, held together by embedding in an extracellular matrix in host tissues. Like other pathogenic Actinomyces, Actinomyces radicidentis can persist in aprotected biofilm environment, allowing it to evade elimination by host defenses, including phagocytosis.
References
Further reading Whitman, William B., et al., eds. Bergey's manual® of systematic bacteriology. Vol. 5. Springer, 2012.
External links
LPSN Type strain of Actinomyces radicidentis at BacDive - the Bacterial Diversity Metadatabase