An endo-perio lesion is one of the more common tooth-related problems. An association between the presence of apical and marginal periodontitis is known in the literature and has been observed in 5.7% of individuals aged 40–45 years old. The purpose of the present article is to present three case reports describing the successful retreatment of endo-perio lesions. In each of these cases, we used a biologically active bioceramic root canal sealer, GuttaFlow Bioseal, which is a bioactive root canal filling material composed of gutta percha, polydimethylsiloxane, platinum catalyzer, zirconium dioxide, and bioglass. All cases were followed up clinically and radiographically for a period of at least 11 months.

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Background. The violation of the marginal tightness of composite restorations and the recurrence of the carious process remains relevant to this day, especially in persons with a decompensated form of caries activity. In this regard, of undoubted interest is the possibility of a wide preventive effect of individual oral hygiene products with a remineralizing effect, particularly those containing brushite crystals. Brushite crystals have unique adhesive properties and tropism to hydroxyapatite crystals on the enamel surface. The principal mechanism of action of the RemarsGel system is a chemical reaction that occurs when calcium nitrate from tube # 1 is mixed with ammonium hydrogen phosphate from tube # 2, as a result of which a brushite crystal is formed on the surface of the teeth. Material and methods. From a clinical point of view, this study compared the clinical efficacies of a standard prophylaxis program (using traditional fluoride-containing personal oral hygiene products) of carious recurrence in patients with a high degree of caries activity and a developed program for using a natural two-component complex to strengthen and remineralize RemarsGel enamel. The effectiveness of the applied technique was monitored using clinical research methods immediately after sanitation and 1, 12, and 36 months after it. Results. The high efficiency of brushite crystals was established in terms of preventing violations of the integrity of the enamelcomposite joint, which has a direct and immediate effect on the recurrence of the carious process. A statistically significant difference in the Ryge criteria was found between group Nos. 1 and 2. These results were confirmed by scanning electron microscopy and statistical processing of the research results. Conclusion. A scientifically based indication of the intended use of the system must be added to the list of main indications for use in the presence of a significant amount of adhesive restorations in the oral cavity, made using direct and indirect methods, especially with decompensate caries.

The use of solutions of chlorhexidine for hygienic measures creates a number of side effects: change the color of the teeth and the mucous membranes, desquamation, taste disturbance, dysbiosis overgrowth in the mouth. These effects can lead to further aggravation of the condition, it limits the indications for long-term use of chlorhex-idine.At present preference is given to tools made of natural ingredients that contain vitamins, macro - and trace minerals, chlorophyll, volatile and other vital biologically active substances affect the metabolic processes. They have the positive anti-microbial, anti-inflammatory, hemostatic, healing and analgesic effects; they are not inferior in efficiency of synthetic drugs. At the same time they are safe, accessible and affordable, which is important for the elderly and senile age. In this paper a comparative characterization of the state of oral hygiene and denture in elderly patients with complete and partial loss of teeth is presented. Despite the high clinical and laboratory findings, the prepared tools are often not available for this group of patients for financial reasons. As result these patients not undertake any hygienic measures. The proposed hygienic means for rinsing the oral cavity and treatment dentures have low cost, available for most patients and have a high clinical efficacy, it is confirmed by microbiological methods.