Jaw actinomycosis-An opportunistic infection: Case series.

Jaw actinomycosis is a quite rare invasive facultative bacterial infection caused by Actinomyces, Gram-positive filamentous bacilli found in human commensal. A break in continuity of epithelium due to surgery, trauma or previous infection can lead to deeper invasion of bacteria causing infection. The risk factors for actinomycosis are trauma, caries, debilitation, and poorly controlled diabetes mellitus.