![]() ![]() ![]() Ludwig’s angina is a head and neck infection characterized by rapid progression, with edema and necrosis of the soft tissues of the neck and floor of the mouth, and is associated to a high mortality rate ( 5). Systemic alterations favoring the spread of infection can be observed in situations such as HIV/AIDS disease, decompensated diabetes mellitus, immune depression, alcoholism or weakened states ( 1, 3, 4). The virulence of germs, along with the local and systemic conditions of the patient, determine host resistance ( 3, 4). The spread of an infection depends on the balance between the patient condition and microbial factors. Odontogenic infections are generally secondary to pulp necrosis, periodontal disease, pericoronitis, apical lesions or complications of certain dental procedures ( 2). Odontogenic infections (OI) are quite frequent, and usually can be resolved by local medical-surgical means - though in some cases they may become complicated and result in important morbidity-mortality ( 1). ![]()
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