In the clinic of purulent maxillofacial surgery, one of the most acute problems is odontogenic phlegmons arising from the spread of pathogenic origin from the focus of chronic infection of the so-called "causal" tooth, which is associated with the severity of the purulent process itself, the rapidity of its spread to neighboring cellular spaces, a high risk of severe complications and frequent death]. The problem under consideration has not only medical, but also important socio-economic significance. The aim of the work was to study the prevalence of odontogenic phlegmon in the Republic of Uzbekistan to identify the main trends in the development and course of this pathology. Materials and methods. 845 case histories of patients with odontogenic phlegmon hospitalized in the hospital of maxillofacial surgery of the Department of adult maxillofacial surgery of the Tashkent State Dental Institute in the period from 2019 to 2021 were studied. Statistical processing of the research results was carried out using Microsoft Excel 10 application programs and the STATISTICA for Windows 6.0 statistical package (Statsoft, USA) by the method of variational statistics using the Student's parametric criterion. We also used a statistical research method – Pearson Chi-squared. Results of the study. There was an increase in the number of patients with odontogenic phlegmon, among whom residents of the districts of the Republic of Uzbekistan prevailed and were most often found among people of working age. The odontogenic "cause" in most cases were the molars of the lower jaw. The structure of morbidity was dominated by odontogenic phlegmons of one cellular space. Most of the hospitalized patients, bypassing the pre-hospital stage, went to the hospital on their own. Findings. Given the increase in the number of patients with odontogenic phlegmon, the issues of their prevention and effective treatment remain relevant.

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