Aim. Determination of the psychological type of attitude to the patient's illness, depending on gender and age group, which will further improve communication between the patient and the dentist.

Materials and methods. This article provides a psychological assessment of patients in relation to diseases of the oral cavity at a dental appointment using the adapted TOBOL technique. This technique is based on typing patients according to certain cognitive characteristics described in the article. For this study, 65 people of older age groups were interviewed.

Results. The frst group of attitudes towards the disease included 27 patients (41.5%), the second – 24 (37%), the third – 14 (21.5%). 11 (45.8%) men were assigned to the frst group, 8 (33.3%) men – to the second and 5 (20.9%) – to the third group. Women showed a distribution: 16 (39%) women belonged to the frst group, 16 (39%) – to the second and 9 (22%) – to the third group, respectively. Negative attitude towards dental diseases, reluctance to treat them sharply increases in centenarians.

Conclusions. With increasing age, there is a growing tendency towards pessimization and aggression. Sensitized attitudes toward illness, depression, refusal of treatment, or blame-shifting complicate diagnosis and subsequent treatment. To prevent unwanted emotions and improve the quality of communication, the dentist should be guided by an individual approach to these patients, which should be based on the basic principles of ethics and deontology. Only then will dental treatment be effective and complete.

Aim: Variations in cone tip diameter while obturation can lead to premature binding, extrusion, or poor adaptability of GP to the canal walls and promotes microleakage and ultimately endodontic failure. The purpose of this investigation was to measure the variability from the listed cone tip diameter and taper of size #25, 0.06 taper GP cones from three different brands with the help of stereomicroscope and digital micrometer.

Materials and methods: 45 GP points (N = 45) of Size #25 with an 0.06 taper from three different brands were divided into three groups: Group A – Diadent Group B – K3 and Group C Pro- Taper Next. Each group have 15 GP (n = 15). The diameters (D0 and D3), tapers were measured according to the ANSI/ADA Specification No. 78 using stereomicroscope (accuracy of 0.001mm) and digital micrometer. Kruskall Wallis test was to detect any significant differences between two or more groups and Mann Whitney U test for pairwise comparison. p value < 0.05 were considered as statistically significant.

Results: On comparing there was significant variability within the three brands using stereomicroscopy, the standard values for D0 diameter which was 0.25 ± 0.23, Protaper Next GP cones was the similar to the standardized values compared to Diadent and K3 GP cones which were significantly different from the standard values. On comparing diameter variation at D3, Protaper Next, 0.043 ± 0.018 was once again similar to its manufacturer standard values of 0.43 ± 0.022. Diadent showed mild variation with D3 Diameter of 0.44 ± 0.017 and K3 was significantly different from the standard values K3 was 0.41 ± 0.018.

Conclusions: The results of the current study indicate significant variability between GP cone brands for both diameter and taper. However, the high standard deviation values associated with most of the diameter and taper differences from manufacturer’s nominal values also suggests high variability within individual brands.

Today, dentists face a diffcult task: in conditions of unfavorable environmental conditions, increased stress, high allergization of the body, tolerance of microorganisms to antibiotic therapy, to fnd a treatment method that will stop the inflammatory process, accompanied by an abundance of opportunistic microflora, improve the quality of life of the patient and reduce the cost of treatment of patients with diseases of the oral mucosa.

Aim. of the study: to conduct a comparative analysis of the effectiveness of the treatment of the method of ozone therapy and the drug "Kolegel" relative to the generally accepted methods of treatment of patients with aphthous stomatitis.

Materials and methods. The patients were divided into 3 groups according to the method of treatment: conventional, with the use of ozonated peach oil and the application of the drug "Kolegel". The results were evaluated on the 3rd, 7th, and 14th days using computer planimetry and pain syndrome assessment using the visual analog pain scale (VAS: VAS).

Results. For 1-14 days, the drug "Kolegel" and applications with ozonated oil proved their effectiveness, for 7 days, patients did not complain of pain, there was a reduction in the area of aft, which indicated the relief of the inflammatory process.

Conclusions. According to the results of the study, it was proved that the inclusion of the drug "Kolegel" and ozone therapy in the treatment regimen of patients with aphthous stomatitis is a highly effective method and contributes to the acceleration of reparative regeneration.

Pulpitis is one of the most prevalence complication of dental caries. In the structure of visits for dental care, the diagnosis of pulpitis accounts for 14 – 20%. Preservation of the vitality of the pulp is very important for the tooth and for the body as a whole. Since the death of the neurovascular bundle leads to a abnormalities of the protective, trophic and plastic functions of the tooth, causing the loss of its functional signifcance, the development of complications and, as a consequence, removal of a tooth. So, conservative methods of pulpitis treatment must be used to prevent the spread of inflammation in the dental pulp. The success of both direct and indirect biological methods for treating pulpitis in more than 50% of cases depends on the drugs and materials used for the pulp. In the arsenal of dentists there are appropriate new generation drugs with a suffciently high evidential base, however, the problem of fnding the "ideal" material is still crucial.

The discovery of stem cells is considered one of the most important achievements of mankind. The ability of any stem cells to produce different cell types makes them a very convenient system for studying the molecular genetic events that cause cell differentiation. Due to their ability to differentiate into any tissue, stem cells can be used to treat a huge number of diseases. Therefore, the comprehensive study of stem cells is one of the most relevant and promising areas of modern medicine.

The outcome of endodontic treatment directly depends on the high-quality instrumental and medical treatment of root canals. The most effective, widespread and well-known antiseptic used for rinsing root canals is sodium hypochlorite. Unfortunately, in the process of irrigation complications arise in the form of sodium hypochlorite of various concentrations extrusion into the periapical region. We must not forget about the anatomical and topographic features of the structure of nearby structures, such as the mandibular canal and the maxillary sinus. The aim of the clinical case is to assess the depth of irrigant penetration into the periodontal area using radiography and to develop an algorithm for actions in the event of a hypochlorite accident.

Successful and predictable endodontic treatment requires knowledge of root canal anatomy and morphology variations. In cases where X-ray images do not help to clarify the anatomy of the root canals, it is recommended to use magnifying devices. The second premolar of the lower jaw is one of the most diffcult teeth for endodontic treatment due to variations in internal morphology, additional root canals, apical deltas, and lateral canals. Diagnostic radiographs in different projections are important for getting an idea of the number of existing root canals. The purpose of root canal treatment is to clean the root canal of pathogenic microbes and infected pulp, prevent the formation of toxic products, and protect the periapical tissue. The presence of root canal variability increases the complexity of endodontic treatment. The complex anatomy of the root canals, the presence of additional channels, unnoticed by the dentist, can cause the failure of endodontic treatment.

In the beginning of the COVID-19 pandemic in March 2020, by the decree of the Mayor of Moscow, the provision of dental services to the population was temporarily suspended, with the exception of diseases and conditions requiring emergency or urgent dental care. A Headquarters was established to coordinate the provision of emergency and urgent dental care for COVID-19 patients and for those who was in isolation during lockdown. The Moscow Healthcare Department has been organized an activity of mobile medical and nursing teams (MNT) to provide emergency medical care in the "dentistry" profle. All MNTs were equipped with portable dental equipment. The MNTs has been working for free within the framework of compulsory medical insurance. For the period from March 26 to June 16 – 2020, medical care was provided to 1501 patients, of which 294 with a confrmed diagnosis of COVID-19, including 57 children. The measures taken were of a temporary nature and were aimed at preserving the health of Moscow residents and preventing the further spread of the new coronavirus infection COVID-19 in Moscow.

Relevance. The problem of respiratory diseases has been studied for a long time by many specialists and remains relevant to this day. This problem has been of interest to researchers for many years due to several factors. In many studies, it was demonstrated, that a signifcant relationship exist between the upper airway condition and jaw growth, craniofacial skeleton and TMJ dysfunction. Lateral cephalometric radiographs (LCRs) have been used to assess skull parameters, jaw bones and teeth, the morphology of the upper airway, the severity of airways obstruction and adenoid size. The present study aimed to determine the reliability of LCRs compared to CBCT in the assessment of the upper respiratory tract in order to determine which variables are reliable for potential use in clinical diagnosis.

Aim. To analyze the literature on the effectiveness of the using Lateral Cephalogram in the assessment of the upper airway.

Materials and methods. Electronic search of articles was carried out using search engines and databases: Cyberleninka, eLIBRARY, Google Scholar, Pub Med, SCOPUS. The publication date criterion was selected from January 2010 to January 2021. The electronic search was conducted using the following keywords: lateral cephalogram, upper airway, cone-beam computed tomography. A total of 10 studies from the literature met the selection criteria.

Results. CBCT provides a good estimate of the transverse dimensions and volumetric measurement of the airway space. Linear measurements of CBCT and LCRs were quite reliable and reproducible. The most diffcult to study and differentiate area is the oropharynx, the variability of the pharyngeal segment cannot be predicted by LCs. LCRs method is advisable for adenoid pathology diagnosis due to its fnancial acceptability and availability. The cephalometric headflm provides a good general overall indicator for nasopharyngeal airway patency, adenoidal hypertrophy.

Conclusions. The traditional lateral cephalogram remains not only a standard, reproducible and cost-effective diagnostic method in orthodontics, but also a reliable initial tool for screening upper airway obstruction, studying the nasopharyngeal morphology and assessment of adenoid size. Based on our results, the measurement of the nasopharyngeal space on lateral cephalograms can be used as an initial screening method to estimate the nasopharynx volumes. The results demonstrate that a lateral cephalogram can provide valuable information about the severe limitations and nasopharyngeal morphology

Aim. To identify the occupational risk of developing chronic generalized periodontitis and bruxism in limestone quarry workers.

Materials and methods. We examined 214 workers of the limestone quarry, of which 66 patients were diagnosed with chronic generalized periodontitis, aggravated by bruxism, these patients were taken for treatment. Investigated the indices of hygiene, bleeding, periodontal, measured the depth of periodontal pockets. Electromyography of the temporal and masticatory muscles, microcirculation of periodontal blood flow, and radiography were performed. Established professional conditioning. The patented treatment we proposed: a children's phytogel for teeth and gums Karmolis was introduced into the pathological pockets and along the gingival margin, after which lasertophoresis was carried out according to the labile technique on the upper and lower jaws segmental. Fluctuorization, mouthguards, remedial gymnastics, self-massage – all these are the therapeutic measures offered by us.

Results. After the treatment we carried out, the index of the indices improved, the speed and volume of blood flow in the periodontium increased, the temporal and masticatory muscles became less tense, all this indicates a favorable course of the therapy.

Conclusions. Moderate CGP, aggravated by bruxism, are occupational diseases in limestone mining workers.