CHARACTERISTICS OF THE COMPOSITION OF GINGIVAL POCKETS MICRFLORA ISOLATED FROM PATIENTS WITH PURULENT INFLAMMATORY DISEASES IN THE PERIODONTAL TISSUES

The problem of the purulent inflammatory disorders of periodontal tissues (PIDPT) at the present time is extremely prevalent. According to the World Health Organization (WHO), around 80% of people suffer from periodontal diseases, and the disease incidence among young people increases significantly and reaches up to 80-95 %. The aim of the present research was to study the composition of microflora of gingival pockets in patients with purulent inflammatory periodontal diseases (PIDPT) in order to establish the specific weight of the determined microbial associations. Materials and methods. Microbiological researches included isolation and identification of bacteria that were present in the gingival pockets of patients with different types of PIDPT. Identification of anaerobic microorganisms and associated microflora was carried out with the help of commonly used classical bacteriological methods, with determination of biochemical properties of the microorganisms cultures using APІ and ANAEROtest 23. Results. There were 192 patients studied in total, all aged older than 20 with diagnoses acute and chronical periodontitis, aggressive periodontitis, hypertrophic pulpitis, granulating periodontitis, parodontopathy, and local periodontitis with a presence of fistula. During the analysis of composition of the microflora isolated from periodontal tissue in patients with PIDPT, the following pathogens were isolated most frequently during the bacteriological research: Streptococcus spp., Staphylococcus spp., Neisseria spp., Stomatococcus spp., and Enterococcus spp. (58%). The quantity of periodontally pathogenic microorganisms was constituted 19,3% from the total quantity of isolated streains (81 isolates). The most numerous group was determined to be the “orange” complex (59,3%) – isolates of Prevotella melaninogenica, Fusobacterium nucleatum, Parvimonas micra. The least numerous was the group of “green” complex - (2,5 %) – Streptococcus mitis. Periodontally pathogenic representatives of microbiota in all cases were isolated as a part of associations with other bacteria. The presented materials signified that the periodontally pathogenic agents of the “red” and “orange” complexes were isolated together with representatives of Streptococcus spp - 33 (56,0 %) associations; Staphylococcus spp - 11(18,6%) – associations. Also in 13 cases (22,1 %) of associations the associated flora was represented by Candida spp. fungi. Conclusions. In course of the research, 4 species of “red” and “orange” complexes were identified, and the quantity of different associations there were present in was significant. There were 22 associations determined. The obtained date concerning microbial associates in the content of gingival pockets in PIDPT show the necessity of individual approach during treatent of this patient group, with taking into account the microbial diversity.

PECULIARITIES OF THE WORK OF THE SURGICAL STUDENT SCIENTIFIC CIRCUIT IN THE QUARANTINE

With the onset of the coronavirus pandemic, the only way to learn and communicate with students is distance learning. The aim. Analyze the features of the student scientific circle on surgery in the mode of distance learning in quarantine. Materials and methods. When the pandemic has suddenly spread to all spheres of life, the only way to learn and communicate with students is distance learning. In Ukraine, distance learning is regulated by an order of the Ministry of Education and Science from 31.10.2013 № 1518 "On approval of the Requirements to higher educational institutions and institutions of postgraduate education, scientific, educational and scientific institutions that provide educational services in the form of distance learning to train and improve the skills of specialists in accredited areas and specialties." With the approval of distance learning, the work of the student scientific circle (CSC) "Sharp Scalpel" at the department also went online. The structure of classes during studies in the CSC consists of a theoretical part where students report the results of scientific research from literature sources according to the topics they work on with supervisors, as well as a practical part where they work directly with patients under the supervision of the CSC leader. Some classes are held in the vivarium, where they learn to suture the intestines of animals. Often the structure of practical training in the CSC is not so clear, because in the presence of an interesting clinical case in the hospital or operating room, students are fully engaged in practical work. Results. With the transition to distance learning, the structure of classes in the CSC has undergone a significant transformation - the most important and interesting part for the group has fallen, namely the possibility of contact with the patient. The group members were divided into two groups: Group I – 8 students (25%) - students who, in addition to the practical part of the lesson, are also interested in the theoretical part of the group, who continued to study literature sources according to the topic they received and actively prepared for the scientific-practical conference. Group II-22 students (75%) – those, who lost interest in the CSC, when the opportunity to work with the patient became inaccessible. Another disadvantage of online learning is the loss of society, are the possibility of direct communication between students is lost, the necessary skills in communicating with the patient are not acquired, which is extremely important in the medical profession. Conclusions. In the case of quarantine, distance learning is an important and necessary form of educational process, even in medical schools, but it can not replace live communication between students, with the patient and the teacher. Online learning does not provide a practical part of the CSC work, which is manifested in the loss of interest in classes in the CSC among students.

COMPARATIVE CHARACTERISTICS OF THE DYNAMICS OF CARDIOVASCULAR AND RESPIRATORY EFFECTS OF PNEUMOPERITONEUM BASED ON CARBON DIOXIDE AND ARGON IN LAPAROSCOPIC CHOLECYSTECTOMY

Pneumoperitoneum is one of the most critical components of laparoscopic surgery, which has a negative effect on gas exchange and stress to circulatory buffering system. One of the top priorities of laparoscopic technologies is to minimize the impact on the respiratory and cardiovascular systems, metabolic dynamics and compensatory abilities of homeostasis. The main goal of this research work is to compare the effects of carboxyperitoneum and argonoperitoneum on the intraoperative dynamics of CO2 concentration as well as cardiovascular and respiratory characteristics in patients undergoing laparoscopic cholecystectomy for various forms of cholelithiasis. Materials and methods. Four experimental groups involved patients based on their nosological form of cholelithiasis and the gas used to induce pneumoperitoneum. All patients underwent laparoscopic cholecystectomy by means of standard procedure. Either medical carbon dioxide or medical argon was used to induce pneumoperitoneum. Intraoperative monitoring of blood carbon dioxide levels PaCO2 was performed by taking venous blood every 15 minutes. Capnometry was performed by means of mainstream analysis using “BIOMED” BM1000C modular patient monitor by recording the discrete values of PetCO2 every 15 minutes, as well as by analyzing photocopies of capnography curves every 15 minutes. Intraoperative echocardiography was performed to identify the mean arterial pressure (MAP), heart rate (HR) and cardiac output (CO) in order to assess the effects of different types of pneumoperitoneum on the cardiovascular system. Results. The obtained data confirm the expected difference in the indices of cardiorespiratory functions between patients with acute cholecystitis and cholelithiasis without signs of inflammation. The investigation revealed that under the influence of pneumoperitoneum, heart rate and mean arterial pressure increase, while the cardiac output decreases. The respiratory pressure marker depends more on the intra-abdominal pressure and presumably the patient’s body type than on the presence of inflammatory syndrome. Argon insufflation has a slight negative impact on the cardiovascular system. Particularly, the mean arterial pressure and heart rate increase, while the cardiac output marker is less decreased as compared to the use of carbon dioxide. Abdominal pressure has a significant effect on the cardiovascular and respiratory systems regardless of the used type of gas. The combination of high intra-abdominal pressure with the elevated head end of the operating table, which is a common practise during cholecystectomy, has especially great influence on cardiovascular and respiratory functions. Operation which is carried out at decreased pressure allows reducing the deviations of practically all indices. Conclusions. Thus, the cardiovascular and respiratory systems adapt under the influence of pneumoperitoneum, providing compensation for the negative effects of mechanical and resorptive-metabolic character. Compensatory-adaptive abilities of the cardiovascular and respiratory systems increase with the decrease of intra-abdominal pressure. The use of argon as a working gas for insufflation into the abdominal cavity during laparoscopy reduces the negative impact of pneumoperitoneum on the cardiovascular and respiratory systems, providing a greater reserve of homeostatic and buffer systems of the body.

FEATURES OF CLINICAL SYMPTOMS AND THE INFLUENCE OF RISK FACTORS ON THE OCCURRENCE OF BRONCHIAL ASTHMA IN CHILDREN OF LVIV REGION OF DIFFERENT AGES

Bronchial asthma (BA) is a common chronic pathology of the lower respiratory tract in children. The first manifestations of the disease can begin at any age, but the clinical features, of the course, are different in different periods of childhood. Manifestations and course of asthma may disappear or progress with age. Therefore, it is likely that there are differences in the pathophysiology, inflammatory response of the body and the features of the clinic of asthma in children of different ages, which affects the diagnosis and treatment. The aim of the study was to determine the features of clinical symptoms and the influence of risk factors for asthma on its occurrence in children of different ages. Materials and methods. We analyzed the anamnesis and clinical symptoms of 57 children aged 3 to 18 years, who were treated from September 2020 to June 2021 in the Lviv Regional Children's Clinical Hospital “OHMATDYT” and in the Lviv Municipal City Children's Clinical Hospital. The age groups did not differ statistically in the severity of asthma (P> 0.05). Thus, in group 1 was 1 patient (9.09%) with mild form, 1 patient (9.09%) - moderate persistent form, 8 patients (72.73%) - with severe persistent form. Among patients of age group 2 was 1 patient (3.85%) with mild persistent form, 3 children (11.54%) - moderate and 21 children (80.77%) - with severe persistent form. In group 3 was 1 patient (5%) with a mild persistent form, 6 patients (30%) - moderate and 12 children (80%) - with a severe persistent form. The vast majority of patients were boys (84.21 ± 4.83%). All patients underwent general clinical examinations, spirometry, and allergy tests. We used the clinical-anamnestic method to perform the tasks of the work, which consisted in collecting a detailed somatic and genealogical anamnesis during the parents` questionnaire. Physical development of children was assessed using centile tables. Statistics were evaluated by calculating Student's t-test and Pearson's consistency test. Preschool children with asthma were more likely to experience shortness of breath during exercise and a wet low-yielding cough, and children of primary and secondary school age were more characterized by concomitant allergic rhinitis. Autumn was more unfavorable period for the exacerbation of clinical manifestations of asthma in children of Lviv region was period. We did not find correlation of birth weight on the timing of asthma. However, a burdensome obstetric history contributed to the early development of clinical manifestations of asthma. Preschool children were more likely to be exposed to nicotine during the antenatal period and had a shorter duration of breastfeeding, which may be a probable risk factor for asthma in preschool children. In 77% of children from different age groups were burdened with a history of allergies, with 66% of cases more pronounced in the maternal line. An analysis of physical development revealed that most preschool children were overweight. Conclusions. Asthma has features of clinical symptoms in children of different ages - shortness of breath during exercise and whooping cough are characteristic of preschool children, and concomitant chronic persistent rhinitis - for older age groups. Seasonal exacerbations are characteristic of asthma in children; in particular, the autumn period is more unfavorable, common for asthmatics in children of all ages among patients in Lviv region. Maternal smoking during pregnancy has a significant effect on the risk of developing asthma in children. Also, a burdened maternal allergy history and overweight child contributes to the development of asthma in children.

COMPREHENSIVE PREOPERATIVE APPROACH AND ENDOVENOUS ELECTRIC WELDING IN THE TREATMENT OF CHRONIC VENOUS INSUFFICIENCY C6 CLINICAL CLASS

The evaluation was done in the sphere of preoperative preparation trophic ulcer in patients with CVI using the proposed tactics of mechanochemical debridement and elimination of vertical venous reflux EVEZ method, in comparison with standard preoperative management tactics and EVLT of saphenous veins. It is established that the proposed tactics of preoperative preparation are more effective than classical approaches. Purpose. The use of the EVEZ method in combination with the proposed preoperative preparation of trophic ulcers in the treatment of CVI was determined to be effective. Materials and methods. An analysis of the treatment of 68 patients with CVI C6 clinical class was performed. The patient of the main group received the EVEZ treatment tributaries and perforating veins with preoperative trophic preparation ulcers, which includes: active mechanochemical debridement and control moisture balance in the wound, installation of negative pressure wound therapy system, platelet rich plasma therapy, application drugs based on diosmin and hesperidin. The proposed scheme of preoperative preparation has the following algorithm: Taking a smear from the sore to determine the bacterial spectrum and subsequent rational antibacterial therapy following the results of the antibioticogram; Active mechanochemical debridement with solutions of 0.1% polyaminopropyl biguanide + 0.1% surfactant, povidone-iodine + ethanol + glycerin + laureate 9 and control of moisture balance in the wound with modern hydrogel sore dressings; Installation of VAC system with a constant negative pressure of 120 mm Hg for 3 days for the first 3 performances of the system. Subsequently, VAC therapy was performed in a constant mode with a pressure of 80-120 mm Hg. in patients with insufficient wound cleanliness; After active cleaning, PRP therapy was performed, which involves the introduction of platelet-enriched plasma along the edge of the wound to a depth of 3 to 5 mm. The amount of PRP used depended on the size of the defect and ranged from 1 to 2 ml. All patients of the main group underwent correction of concomitant pathology with systemic use of capillary stabilizing drugs based on diosmin / hesperidin. Patients in the comparison group received standard preoperative preparation and EVLT. Patients of both groups were outpatient for 6 months. 39 of them (57.35%) were women and 29 (42.65%) were men aged 36 to 78 years. The duration of ulcers ranged from 3 months to 7 years. The following localization of venous trophic ulcers was observed: in the area of the medial bone - in 49 (72%) patients, 10 (14.7%) - on the anterior surface, 9 (13.3%) - on the lateral, posterior, anterior medial or anterolateral surface of the tibia. Results. Tactics of preoperative preparation that is offered allowed to achieve: reduction of redness and swelling in the main group on 7.3 ± 0.8 days (comparison group 10.2 ± 0.7 days); complete cleaning of the wound from fibrin and necrotic tissues at 9.1 ± 0.5 days (15.0 ± 1.1); the appearance of granulation tissues at day 12.6 ± 0.9 (18 ± 0.7); the appearance of marginal epithelialization at 15.3 ±0.7 days (20 ± 1.1). Conclusions. The proposed tactics can reduce the term by 1.7 times the preparation of the ulcer for surgery and 1.6 times the healing time of ulcers. The EVEZ method allows performing ablation efficiently and safely trunk great saphenous vein. The use of phlebotonic drugs, which is called Normoven, allows you to accelerate the healing of ulcers and prevent their recurrence.

MANAGEMENT OF EDUCATIONAL ORGANIZATIONS: MAIN IDEAS, FUNCTIONS, FEATURES

The organizational culture of an educational institution should be considered because of the management of a higher education institution, the real relations and positions existing in it. It is characterized by levels of differentiation (division of responsibilities) and ensuring the cohesion of staff (integration), and thus cooperation focused on achieving the goal, which is an indicator of the successful functioning of the educational institution. Organizational culture is defined as a set of norms, values, rules, models of communication that are shared by all employees. The level of development of organizational culture is crucial in ensuring the quality of the educational institution, its efficiency. Solving the problem of developing the organizational culture of the educational institution is an important task of its head. The system-forming factor of university culture can be the core idea or principle, which is mandatory for all research and teaching staff and is manifested in all aspects of the life of the educational institution. At the present stage of development of educational organizations there are distortions - in the hierarchy of goals the leading place is given not to a specific goal, but to receive income from educational activities. This trend is manifested not only in the activities of private educational institutions, but also public ones. Personnel policy of medical institutions of higher education is to focus the way of such educational institutions on ethical goals, liberalism and tolerance, great humanity, the pursuit of justice, independence and individuality, the correct principle of their action and counteraction, self-affirmation, building hierarchy, power, obtaining information and communication, the desire to form social contacts, free expression of opinion, the social benefits of labor and democracy, the desire for security. Ethics is based on norms and principles that determine the behavior of ordinary employees and leaders of educational organizations in relation to society, other organizations, and groups, in relations with each other. Ethical norms outline common values and ethical rules that must be followed by employees of higher education institutions. Ethics rules are created to define the goals of educational organizations, their description, create a favorable ethical atmosphere and outline ethical recommendations in decision-making. Self-respecting educational organizations, that is, for which public opinion about decency and honesty is more important than the desire to increase their profits, define and oblige their employees to adhere to ethical norms. Many educational organizations that value their name now have codes of ethics and guidelines. It helps employees and managers to act and make decisions based on the analysis of ethical standards. Today, the manager in his daily work systematically deals not only with compliance with laws governing educational activities, but also with compliance with ethical requirements that increase the level of responsibility to the environment and society, which is especially important for medical institutions of higher education.

RISK FACTORS IN THE PROCESS OF EMPLOYMENT OF MEDICAL WORKERS OF THE DENTAL PROFILE

One of the most socially important types of work is the work of medical workers. Due to the presence of a significant number of harmful and dangerous factors, the medical profession is divided into a separate group, which in turn is characterized by unique aspects of work. The work of doctors and nurses of different specialties of the dental profile differs significantly in the density of the working day, the volume and nature of professional activities; responsibility for the life of the patient, which affects many physiological processes. The purpose. Assessment and comparative characterization of the presence of occupational risks in the dental field, which are daily exposed to factors of aggressive and dangerous nature, as well as the development of a set of preventive measures aimed at reducing occupational morbidity. Materials and methods. Hygienic research of working conditions of medical staff of the University Dental Clinic in the form of a questionnaire. Statistical analysis of data of special assessment of working conditions; sanitary and hygienic characteristics, acts, maps of cases of nosocomial diseases; laboratory and instrumental research conducted as part of production control; dosimetric control, air sampling with subsequent sowing on the nutrient medium of IPA. Results. It was found that in the studied premises, the total microbial count varied from 756 ± 0.8 CFU / 1m3 to 6497 ± 3.4 CFU / 1m3. In most medical institutions, the level of artificial lighting in the workplaces of medical workers was insufficient. The largest negative contribution was provided by such production factors as: labor intensity and intensity - 26.41%; physical: noise, vibration, non-ionizing and ionizing radiation - 25.32%; chemical - 12.77%. The total contribution of the main factors was 91.78%. Assessment of working conditions is based on hygienic criteria to assess the degree of deviations of the parameters of the production environment and labor process from the current hygienic standards, as well as after analysis and processing of data submitted by employees in the format of their questionnaires. In this regard, the distribution of harmful production factors and their degree of impact on the health of medical personnel was established with the help of multifactor analysis. Conclusions. Thus, the research interprets the results, which clearly in the format of a specific percentage, identify those factors that have a strong driving impact on the health of dental professionals. The most substantiated are such production factors as: chemical (exposure to drugs and chemicals), physical (noise and vibration, non-ionizing and ionizing radiation), the severity and intensity of the labor process, lighting (non-compliance with regulations for artificial lighting in the workplace) and microclimate and biological (work with biological, potentially contaminated material, samples, patients), non-ionizing and ionizing radiation, labor intensity (tension of the visual organs).

DIAGNOSTIC CRITERIA AND CLINICAL COURSE OF ATOPIC DERMATITIS IN ADULTS

Objective: to analyze Atopic dermatitis (AD) diagnostics criteria routinely used for diagnosis as well as common findings and history in adult patients with different age of onset of the disease. Materials and methods. 123 adult patients aged between 18 and 58 years with AD relapse were examined. The diagnosis was confirmed according to Ukrainian guidelines on AD. The patients were randomized in 2 groups depending on AD age of onset: 67 patients had AD start in early childhood and puberty, 56 patients – in adulthood. Precise medical history of the patients, clinical symptoms were collected. The disease severity was evaluated with SCORAD index and itch severity scale. Results were analyzed using parametric and nonparametric statistical tools. Results. Depending on age of AD onset patients demonstrated some differences in diagnostic criteria positivity, past and actual clinical features of the disease, cooperation with health system specialists. Among major AD diagnostic criteria personal or family history of atopy and flexural lichenification in adults were detected as variable signs of the disease depending on age of onset. Family history of atopy stayed hidden information for part of the patients and could not be verified. The most often minor criteria detected positive and used for AD diagnosis in adults were xerosis, itching when sweating, facial pallor or erythema and white dermographism, with their different frequency among groups. 17,9% of cases in childhood and 25% of cases in adults were not initially recognized as AD and managed as another skin disease for months or years. Skin itch as constant sign of AD is provoked by different triggered with high prevalence of emotional stress in adult-onset AD and different frequency of contact triggers among groups. Emotional trauma was considered by the patients as a major trigger of mild relapses in adult-age AD and moderate relapses in early-age AD. Constant and severe xerosis was more common for patients with AD onset in childhood and was mostly not a significant impacting issue for adult-aged AD. Secondary pyoderma accompanies AD relapses of both groups. 100% of examined patients had experience of self-treatment with topical and systemic medications. Physical modalities of treatment (sunbathing, change of climate etc.) are less often of adult-age AD patients’ choice and provide good results more for early onset AD patients. Steroid-phobia was observed in patients with early disease onset only and is not an issue for adult-age AD patients. Conclusions. Diagnostic criteria stay an important tool for diagnosing AD. Adult patients may demonstrate different set of positive major and minor criteria depending on time of the disease onset. Established diagnosis of AD may not correspond to first manifestation of the disease that is possible both in childhood and adult patients. Prognosing of AD course in adults may depend on general duration of the disease: starting in childhood AD more often has seasonal relation, constant xerosis, irritation by sweeting; patients have long experience of moisturizers and physical treatments use. If started in adulty AD more often aggravates due to emotional and occupational triggers, then others; long-term use of moisturizers more probably would be neglected by the patient.

English VOLUNTEERING IN THE YOUTH ENVIRONMENT DURING A COVID-19 PANDEMIC

The relevance of our topic is that a highly organized and purposeful educational process is impossible without the development of public consciousness in the youth environment. Accordingly, the purpose of the study is to examine and analyze the process of socialization of a person, in particular students, and their involvement in volunteering. Student years are a period of awareness and evaluation of their actions and deeds, the formation of personal concepts. Young people try to look for a reflection of moral qualities in others and begin to project these qualities on themselves. During the forming of the moral potential of students, it is necessary not only to provide an idea of the best human values but also to help them understand, which will motivate the actions of the younger generation. One of the important consequences of the development of civil society in Ukraine was the active development of a relatively new social phenomenon for the country – the volunteer movement. This movement was founded on the tradition of selfless assistance to the needy. It is a historically inherent feature of the Ukrainian national culture. Adopting the experience of a number of advanced Western countries in this area, the domestic volunteer movement is becoming stronger every year, uniting more citizens and attracting significant resources, which requires legislative regulation. Thus, there is reason to claim that volunteer work and the student volunteer movement have been and actually are very relevant. Defining volunteer work, it should be noted that this phenomenon is a social practice that can be mastered by future social workers outside of studying in higher education institutions, but also on the basis of public organizations. Volunteering is based on the ideas of selfless service to humane, the ideal of humanity. It is done without profit, receiving pay, or career growth. Volunteering obtains comprehensive satisfaction of personal and social needs through assistance to other people. It is the basis of public organizations and territorial communities functioning. It is the form of civic activity, as it is low-specialized assistance in various fields. It is also important to keep in mind that a person's values are inextricably connected with motivation and focus. Volunteering contributes to positive changes in the worldview of young people, communicative consciousness, as well as a social and intellectual activity, competence, and ability to act in unusual life situations. The paradox of this work is that by making changes in society, the student rethinks themselves. Therefore, the subject of changes in volunteering is the individual that carries it out. Such work, as well as preparation for it, creates optimal conditions for the development and self-improvement of the personality of a young human, who voluntarily conducts charitable, non-profit, motivating, and socially useful activities. Students are the most mobile social group in the modern world. They take an active part in solving the challenges that are facing the state. The competitiveness of the country at the international level depends on its position in socio-political life, active participation in the socio-economic and cultural development of the country.

EFFECT OF QUERСETIN AND CHLORHEXIDINE-DENT ON CHANGES IN PERIODONTIC TISSUES IN CHILDREN LIVING IN ENVIRONMENTALLY POLLUTED REGIONS OF PRECARPATHIAN REGIONS

The aim of the research is to increase the effectiveness of treatment of patients with chronic catarrhal gingivitis living in ecologically favorable conditions and in ecologically polluted regions of Precarpathian, by adding to the complex therapy of quercetin and chlorhexidine dent. The results of research by a number of scientists indicate that the use of quercetin in complex therapy helps to restore the antioxidant system, improve oxygen uptake by tissues and peripheral circulation, improve the rheological properties of the patient's blood. These properties of the drug were used by us in the research. We studied changes in periodontal tissues in children living in ecologically favorable conditions and in ecologically polluted regions of Precarpathian, conducted a comparative characterization of changes in periodontium and proposed a treatment plan for patients with chronic catarrhal gingivitis, supplemented with chlorhexidine dent and quercetin. We examined 60 children with chronic catarrhal gingivitis living in the contaminated areas of Precarpathian (Burshtyn) and 15 people with intact periodontium living in environmentally stable conditions. All patients underwent a full range of treatment measures, taking into account the removal of dental plaque and rehabilitation of the oral cavity. In 1 group of patients (30 people) patients were treated with chlorhexidine, calendula and chamomile infusion and 1% mefenamine paste. Patients of group 2 (30 people) - the drug quercetin on the mucous membrane of the gums under the individual gingival cap and chlorhexidine dent in the form of oral baths. In order to compare the two groups, an index assessment of the condition of periodontal tissues and a study of rheographic parameters of periodontal tissues were performed. The results of the research did not show a significant difference between clinical and laboratory parameters in patients 1 and 2 groups before treatment (p> 0.05), but they differed significantly from those in the comparison group (p <0.05), which indicates the fact that unfavorable environmental living conditions have an impact on the course of periodontal disease in children. We obtained a significant difference in the blood supply to periodontal tissues in patients with chronic catarrhal gingivitis compared with (p <0.05). The results of the research showed that the use of quercetin and 0.12% chlorhexidine solution in the complex treatment of patients with chronic catarrhal gingivitis provided a significant improvement in clinical parameters and laboratory characteristics of periodontal tissues in children living in different environmental conditions, and provided stabilization of these indicators in long-term observation. The use of the proposed scheme of treatment of patients with chronic catarrhal gingivitis stimulates metabolic processes in periodontal tissues, reduces cyanosis, edema of periodontal tissues according to the results of rheography of periodontal tissues. After treatment, we observe the normalization of the rheological characteristics of the gums, which indicates an improvement in blood circulation in the periodontal tissues in these patients (normalization of qualitative and quantitative characteristics of rheograms).