**10. Conclusions**

A simple tooth infection, especially in diabetics, immunocompromised, or debilitated patients should not be underestimated in its ability to cause severe infections. Furthermore, even noninvasive dental manipulations may also precipitate systemic spread. Facial and cervical infections are potentially lethal complications. However, with good knowledge of the anatomic pathways of the infection, early diagnosis, attention to airway maintenance, aggressive intravenous antibiotic therapy, surgical intervention and careful postoperative management, the infectious process should have a satisfactory outcome. The practitioner must be alert to the particularities of infections from odontogenic origin, as well as to the facial and cervical spaces anatomy, because these structures are crucial for the patient's life and play important roles during the execution of treatment procedures.
