Actinomycotic osteomyelitis of the mandible: report of case.

A case of osteomyelitis of the mandible caused by actinomyces infection is described. Gram stain and cultures of the discharge in fluid thioglycolate medium and blood agar, as well as an analysis of the biochemical properties of the causative organism with API system, indicated the infection was caused by A israelii. Lesions in both hard and soft tissues responded to chemotherapy with cephalexin, minocycline, and aminobenzylpenicillin and drainage of the pus from the cutaneous abscesses.