Three cases of serious odontogenic infection

Three cases of severe odontogenic infection are reported. In case 1, diabetes mellitus (DM) appeared to seriously exacerbate the infection. Gas formation due to bacterial infection occurred in the inflammatory regions of cases 2 and 3. Acute renal failure (ARF) or disseminated intravascular coagulation (DIC) followed these severe infections. Manage-ment of general complications as well as prompt drainage and systemic antibiotic treatment is essential in the management of serious infections.