Biofilms

Biofilms are the most common mode of bacterial growth in nature and are highly resistant to antibiotics (relevant in clinical infections). They are identified  in obstinacy case of apical periodontitis.

Identification and localization of extraradicular biofilm-forming bacteria associated with refractory endodontic pathogens. Appl Environ Microbiol. 2005 Dec;71(12):8738-43

Related Articles
* Participation of bacterial biofilms in refractory and chronic periapical periodontitis. [J Endod. 2002]
* Scanning electron microscopic observations of apical root surfaces of teeth with apical periodontitis.
[Endod Dent Traumatol. 1996]
* Single species biofilm-forming ability of root canal isolates on gutta-percha points.
[Eur J Oral Sci. 2004]

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