According to the World Health Organization (WHO), there are currently no countries in the world where people do not suffer from oral diseases. However, there are significant differences in the prevalence of these diseases in different parts of the world, regions and countries.

Aim of the study: to identify the characteristics of the incidence of dental caries and its complications at the regional level (for the example of the Chuvash Republic for 2010-2021).

Materials and methods: The study was conducted using the method of cartographic analysis and calculation of the ratio of the average indicators (for the studied period) of the incidence of caries, as well as indicators of the incidence of caries complications. Thus, a special coefficient - SI - was determined for each administrative district of the Chuvash Republic, where S I = incidence of caries/incidence of caries complications.

Results of the research: The developed ratio of the incidence rate of caries and its complications is an index of the effectiveness of dental care for the population, showing that low incidence rate of caries and high incidence rate of complicated caries for a certain period of accounting are a negative index of the effectiveness of the outpatient department and low quality of primary medical care.

Conclusions: In accordance with the results of cartographic analysis at the regional level, you can form a model that allows correlating indicators of caries incidence of the local population and incidence of complicated caries in relation to resources (material, technical, personnel and financial) available in the health system. This, in turn, provides a unique opportunity for timely evaluation and search for all necessary resources in those areas that can increase the current effectiveness of the region's medical institutions.

Ludmila Gerasimova received her MD degree at the age of 40 from Kazan State Medical University, Russia. She currently serves as the head of the pedagogical and methodical department at the Vinogradov University Teaching Hospital, a branch of the Federal State Autonomous Educational Institution of Higher Education "People's Friendship University of Russia named after Patrice Lumumba" (FSAEI HE "People's Friendship University of Russia named after Patrice Lumumba"), located at 61 Vavilova Street, Moscow, 117292, Russian Federation. In addition to her administrative role, she is a professor in the department of obstetrics and gynecology at the Medical Institute of Continuing Education of the 2nd Federal State Budgetary Educational Institution of Higher Education "Russian Biotechnological University" (FSBEI HE "ROSBIOTEKH"). Gerasimova has authored 388 publications, which have been cited over 850 times, resulting in an h-index of 14 according to e-library metrics. She is also an editorial board member of several reputable journals in her field.