Purpose. Retrospective analysis of the dental caries prevalence among children and adults in Belarus, Kazakhstan and Russia. Materials and methods. Meta-analysis of the epidemiological data for 40-years period of dental caries monitoring in three countries. Results. The average scores of the DMFT, dental caries trends, efficacy of prevention programs and possible risk factors were estimated in Belarus, Kazakhstan and Russianpopulation. Conclusions. There are evident positive results of the dental caries primary prevention programs among schoolchildren, however their long-term effect was less notable. The study results suggested a necessity of the optimization of prevention and oral health care to the total population.

Relevance. The effectiveness of toothpastes has been proven by numerous studies. Toothpaste - a multi-system, the effectiveness of which should be commensurate with its safety. Purpose. To determine the effectiveness and safety of toothpastes based on calcium glycerophosphate. Materials and methods. 136 children and adolescents aged 7-15 years were examined. All children were divided into groups depending on the toothpaste they used for oral hygiene 2 times a day. The principle of division into groups was based on the choice of parents and children. The first group consisted of children (46 people) who used toothpaste R. O. C. S. "Active Calcium". The second group consisted of patients (44 persons) using toothpaste R. O. C. S. PRO "Young & White Enamel". The third group included children (46 people) using any other toothpaste that does not contain calcium glycerophosphate. Determined index hygiene O’Leary, the speed of salivation, the viscosity of the saliva, buffering capacity of saliva. The influence of toothpastes on the body sensitization was determined by CAST-test. Results. After three months in children of study groups the hygiene index improved significantly, the rate of salivation increased and the viscosity of saliva decreased. In the control group these indicators have not changed significantly. The coefficient of activated basophils of blood serum in the first two groups of the study had no significant differences and was on average 1.040 ± 0.009 for the first group and 1.05 ± 0.02 for the second group. A similar indicator in children of the control group was 1.15 ± 0.03, which exceeds the reference values and can be a marker of the sensitizing effect of toothpastes on the body. Conclusions. It is established that toothpastes based on calcium glycerophosphate effectively remove plaque, stabilize the cariesogenic situation in the oral cavity and do not have a sensitizing effect on the body of children.

Relevance. Early diagnosis of caries of permanent teeth is most effective from the moment of their eruption, as it allows to identify the initial forms of caries. Preventive measures during this period are important because they can prevent the transfer of enamel demineralization to carious defects that already require preparation and filling. Purpose. To increase the effectiveness of methods for early diagnosis of dental caries in children.

Relevance. Sagittal abnormalities and deformations of the dentition in children and adolescents account for more than 50% of all dental and dental disorders. Distal occlusion of the dentition ranks first in the structure of the dentalmaxillary anomalies along the sagittal plane, reaching 40-45% of the total number of deformations of the dentalmaxillary system. Mesial occlusion of the dentition is much less common (4-7%), but is one of the most difficult to treat deformity. Aesthetic changes in children with distal and mesial occlusion of the dentition are complicated by impaired functions of chewing, breathing and speech formation. Purpose. It is to conduct a comparative analysis of the retention period in children and adolescents with distal and mesial occlusion of the dentition.

Purpose. The research objective is to study hemodynamics in the pulp of immature permanent teeth after performing direct pulp capping with bioactive materials based on dicalcium and tricalcium silicates and calcium carbonate (“Biodentine”) and based on oxides of calcium, silicon and aluminum (“Trioxident”). Materials and methods. In 30 children aged 6 to 13 years old, 53 immature permanent teeth were treated by direct pulp capping. In group 1 (n = 29), material based on dicalcium and tricalcium silicates and calcium carbonate (“Biodentine”) was used, in group 2 (n = 24), material based on oxides of calcium, silicon and aluminum (“Trioxident”) was used. Vas, Vam, Qas, Qam, PI were evaluated in terms of treatment, 18 and 24 months after treatment, as well as in intact teeth of the corresponding group. DOI

Relevance. Despite the progress in the modern dentistry, the prevalence of caries remains at a high level. The opportune diagnostics, prevention the enamel demineralization at the initial stage can prevent the appearance of hard tissue defects and caries complications. Purpose. To research the clinical efficacy of modern non-invasive methods of treatment for enamel caries at the “white spot” stage.

Purpose. Study of the antibacterial efficacy of various types of laser radiation and high-frequency diathermocoagulation during endodontic treatment of the root canals of the teeth. Materials and methods. Conducted 90 experiments on the removed teeth. Before the study, the extracted teeth were kept in isotonic sodium chloride solution for 24 hours. Depending on the type of impact studied, the extracted teeth were divided into three groups. The antibacterial effect of two types of high-energy laser radiation and highfrequency diathermocoagulation was investigated. Results. A high antibacterial efficacy of monopolar diathermocoagulation was detected using an alternating current frequency of 2.64 MHz when treating the root canals of the teeth. Conclusions. With increasing power, the antibacterial effect of diathermocoagulation increases.

The results of the own investigations are represented in this work. The analysis of the clinical findings, the positive dynamics of saliva microcrystallization proves the efficacy of remineralizing GC Touth Mousse preparation in the treatment of the initial caries, in remineralization of non-caries lesions and hard teeth tissues with unfinished mineralization.

Relevance. The development of high-tech methods of analysis of oral fluid, as well as the expansion of knowledge in the understanding of changes in its physical and chemical properties can increase the diagnostic value at the stage of preclinical manifestations. Materials and methods. The level of lysozyme activity, total protein concentration and proteolytic enzyme activity in the oral fluid of patients with psychoneurological disorders were studied. Results and discussion. The biochemical composition of oral fluid in patients with psychoneurological disorders is significantly different. Both metal-dependent and low-molecular serine proteases were found in the study material. The total activity of proteolytic enzymes in patients of this group is significantly higher (р ≤0.05) than in the comparison group. The level of lysozyme activity (10.2±0.32%) was significantly reduced in the oral fluid of patients with psychoneurological disorders, indicating a low degree of nonspecific resistance.

Relevance. The state of the organs of the oral cavity to a great extent depends on the characteristics of the composition and properties of the surrounding oral fluid, which takes an active part in maintaining the metabolic processes in the oral cavity, and, above all, the mineral metabolism. It is especially important to know the level of mineral metabolism in the oral cavity during childhood, during the formation of tooth enamel in order to prevent dental caries at the preclinical stage of its development.

Purpose. Activation of the promotion of healthy lifestyles among children, developing their oral hygiene skills, formation of motivation and preservation of dental health. Research objectives. 1. Assess the level of sanitary and hygienic knowledge and skills for caring for teeth in preschoolers in Ufa and justify dental education. 2. Conduct "health lessons" in the older groups of preschool institutions.

Relevance. The need for effective pain management in pediatric dental practice remains an urgent task that a pediatric dentist is faced with. It is difficult to provide full medical care when the patient has dental phobia and emotional anxiety. To obtain subjective data on pain, scales are used.

Relevance. Hereditary disorders of dentin development in clinical practice are quite rare, occur as a result of genetic changes and are inherited, as a rule, by autosomal dominant type. In the modern classification of dentin disorders of there are 3 forms of dentinogenesis patholigics and 2 forms of dentin dysplasia. But at the moment, as a result of the new molecular genetic studies, this classification requires revision, as some forms of dentogenesis patholigics and dysplasia may have different manifestations of the same genetic defect. The population frequency of dentin dysplasia (DD) type I is 1:100 000 people. This pathology is characterized by abnormal morphology of crowns and changes in the structure of the roots of the teeth. The roots are usually shortened, irregularly shaped, pulp chamber partially or completely absent. The x-ray reveals foci of bone resorption in the area of the tops of the roots of intact teeth. Due to the shortening of the roots, and in some cases their absence, tooth mobility develops. In this regard, patients with this pathology quickly lose their teeth. The article describes a clinical case of 15-year follow-up of a patient with type I DD, subtype 1a. Treatment in this case was to prevent premature loss of teeth. The publication presents selected methods of treatment and principles of prevention of complications of dentin dysplasia, allowing to keep teeth in the oral cavity as long as possible

Relevance. Most often, the etiological agent of an impaction is supernumerary teeth. The main complication associated with supernumerary teeth was displacement or rotation of permanent teeth. In recent years, much attention has been given to development of the most effective methods for the complex treatment of impaction. Purpose. A review of the necessary diagnostic methods and combined treatment of children with an impacted central incisor associated with supernumerary tooth in permanent occlusion in the context of a clinical case report.