The success of endodontic treatment depends on many factors. The most important of them are the knowledge and manual skills of the dentist.Materials and methods. We analyzed the condition of teeth after endodontic treatment in 300 patients aged 20 to 70 years. Were studied 300 images of CBCT, the number of treated teeth and the number of cases of unsuccessful endodontic treatment was analyzed.Results. According to CBCT data, high-quality obturation of the root canal system was observed in 1335 (75%) endodontically treated teeth. The reasons for successful endodontic treatment are under-sealing of the root canal (16%), removal of material beyond the apex (5.6%), and missed root canals (3.4%).Conclusion. Clinical dental patient examination revealed that maxillary and mandibular molars most often undergo endodontic treatment.

As a result of the study, it was found that the removal of dental plaque using low-frequency ultrasound and ozonized contact medium in chronic generalized catarrhal gingivitis of young people can significantly improve the state of microbiocenosis of the gingival sulcus. The preservation of the main resident species is noted, occasional transient species disappear and the frequency of isolation of aggressive representatives of beta-hemolytic streptococci and periodontopathogenic species decreases. When using ozonated water for the removal of dental deposits, the efficiency of eradication of the microbiota of the gingival sulcus, especially of representatives of aggressive species, is higher than when removing dental deposits without the use of ozonated water.

The dental status of 148 patients aged 18 to 22 years. All students who were diagnosed with generalized catarrhal gingivitis (46) were carried out removal of dental plaque with ozonation of the environment. The results of clinical studies indicate the high efficiency of the use of the removal of dental plaque using low-frequency ultrasound using an ozonized contact medium in the treatment of chronic generalized catarrhal gingivitis. The treatment carried out using this method contributed to the elimination of inflammation, the normalization of blood circulation in the gums. 3 months after the treatment, the achieved effect was preserved, which was confirmed by the data of clinical and functional research methods. Despite a slight increase in inflammation in the gums and a deterioration in microcirculation indicators, even a year after treatment, the indicators characterizing the degree of inflammatory and microcirculatory disorders in the gums retained significant differences compared to the values obtained before the treatment.

Relevance. The problem of the effectiveness of oral hygiene is currently relevant due to the introduction of new tools and methods of Prophylaxis hygiene.Objective. The aim of this study is to Conduct a literature review from different database on modern methods of professional oral hygiene using the keywords: air polishing; glycine; sodium bicarbonate; dental caries; alternative methods, air abrasive. To study different literature sources on the effectiveness of using modern air-abrasive procedures for professional hygiene.Methods. Electronic databases PubMed, eLibrary were screened. Selected studies that investigate the efficacy of various professional hygiene practices and their effects on the state of the oral cavity.Results. By keywords, 1345 abstracts were found that cover the results of scaling – 544, polishing – 704, remineralization – 97. 24 were included in the analysis on various methods of oral hygiene, taking into account the state of hard and soft tissues when using air-abrasive polishing.Conclusion. Data confirms the variety of professional oral hygiene methods used and the efficacy of their results. Studies on the impact of various procedures of curette, scaling, and polishing on tooth tissues have shown conflicting findings. More research into the efficacy of professional oral hygiene practices is required.

The root canal system is complicated and has many anatomical variations among different populations. It is so important to understand the morphology of root canal system before any endodontic procedure, since the lack of knowledge of root canal system could lead to missing the additional root canals which causes failure of endodontic treatment. The study of root canal anatomy was carried out by many researchers and among different populations using various techniques. The presence of additional root canals was most commonly observed in molars. The aim of this chapter is to provide an overview of the morphology of root canal system of maxillary and mandibular molars and its variation among populations.

BACKGROUND: Preserving the effect of periodontal disease treatment and choosing an individual oral care program are urgent issues in dentistry. AIM: To examine the clinical dynamics and index indicators of the state of the oral cavity in patients with mild but chronic generalized periodontitis (CGP) before and after complex treatment using a mouthwash (“Art-Dental Expert”; LLC “KorolevPharm”). MATERIALS AND METHODS: The study was conducted in the main (using “Art-Dental Expert” mouthwash) and control (using 0.05% solution of chlorhexidine bigluconate) groups of patients with mild CGP. The state of periodontal tissues was assessed using a simplified hygiene index (OHI-S, Green–Vermillion), probing bleeding index (BOP), papillary–marginal–alveolar index (PMA), and the index of the need for periodontal disease treatment (CPITN). RESULTS: The main group showed positive dynamics of changes in the indices characterizing the state of the periodontium, with a significant difference in indicators when compared with the control group. CONCLUSION: The use of “Art-Dental Expert” mouthwash for the treatment of patients with mild CGP has a fast and stable prolonged clinical effect with normalization of qualitative and quantitative indicators of the state of periodontal tissues. The “Art-Dental Expert” mouthwash can be recommended for long-term use.