Abstract
Diabetes mellitus (DM) is a metabolic disorder characterized by a relative or absolute lack of insulin and produces multiple systemic complications. Diabetic patients are susceptible to dental caries and periodontal disease due to decreased salivary flow, abnormal neutrophil function, microangiopathy, and increased salivary carbohydrates, especially those in whom the disease is undiagnosed or poorly controlled.,
We experienced infratemporal abscess, originating from chronic apical periodontitis, in a 71-year-old female diabetic patient. She received an endodontic treatment and medication for chronic apical periodontitis, but the abscess quickly progressed through the right buccal region up to the parapharyngeal space and the infratemporal space. The patient died of multiple viscerra insufficiency as a result of uncontrolled DM.
It is considered that the prompt drainage, systemic antibiotic treatment, and the control of DM by insulin treatment are necessary in such severe infections.
