Results of work on definition of solvent of the Metapex, evaluation of quality treating of root canals are presented in this article after temporary sealing by calcium hydroxide. Are described results of carrying out radiological and scanning electronic microscopy researches. Also presented results on determination of adhesive durability of two types of root sealers. The assessment of influence of quality of treating root canals from preparations of calcium hydroxide on adhesion of sealers is given. The combination of medical ultrasonic passive irrigation with irrigation works best when you remove from the surface of root canal preparations of calcium hydroxide.

The aim of the study was to estimate the efficiency of the local ozone and contact darsonvalization or root canal system of permanent teeth with chronic periodontitis based on clinical and microbiological studies. We observed eight patients aged 6 to 13 years with chronic apical periodontitis (ICD-10). Microbiological research includes conducting bacteriological seeding biomaterial (16 root canals), isolated from the contents of the root canals of permanent teeth with incomplete root formation in children with chronic apical periodontitis. The study found ozone therapy is effective against microorganisms containing the root canal of the permanent teeth in children, which would substantially reduce the number of possible odontogenic inflammatory diseases of maxillo-facial area.

In this research an experiment has been studied of characteristics of sodium hypochlorite solutions of different concentrations used for medical treatment of root canal system to justify the choice of the most effective concentration and to study the possibility of combination with antimicrobials – metronidazole and detoxifying agent for treating chronic periodontitis – polyoxidonium. A significant reduction in the level of microbial load of root canals during endodontic treatment has been established. The pilot cytomorphological study showed a beneficial effect of 0.5% solution of sodium hypochlorite, metronidazole and polyoxidonium on the tooth cytostructure.

The increase in life expectancy leads to a progressive increase in the proportion and number of people aged 65 years and older attending dentist. However, along with the number of visits, increases as the number of comorbidities, and the morphological and functional changes in the body. The aim of the study was to investigate the characteristics of the innervation of the anterior mandible and clinical efficacy conduction anesthesia chin near the hole with a 3% mepivacaine local anesthetics in the treatment of dental caries and inflammatory diseases of the pulp in the elderly patients. The anatomical study of the anterior mandible in the age aspect included preparation of the chin area using own methodology staining neurovascular studied 100 preparations received from unidentified persons aged 60-75 years with no abnormalities of maxillofacial region. Research allowed to clarify and describe the features of the innervation of the anterior part of the lower jaw in the area of the apical foramen of the teeth.

Research is aimed at studying the antimicrobial efficacy of photodynamic therapy in treatment patients with pulpitis and periodontitis. Light-emitting-diode lamp «Fotosan» with wavelength 625-635nm was used as light source. Toluidine blue was used as photosensitizer. 73 specimens of root canal content before and after PDT were tested. The current study results prove the antimicrobial efficacy of PDT in endodontic treatment.

A comprehensive clinical and laboratory study of the effectiveness of «Epsorin» in the prevention of dental caries is carried out. The effect of the tool is real and proved by statistics, which is associated with increased structural homogeneity of dental hard tissues and their resistance to aggressive factors of external and internal environment. In the application of the suspension, 0.2% and 0.3% solutions of «Epsorin» are defined fairly low rate of caries, as well as qualitative changes in the composition and properties of mixed saliva among children of school age. «Epsorin» is made from local raw materials (reindeer antlers), which determines the minimum cost and availability, which allows to use it extensively for the people living in the harsh climatic conditions in the North of Russia.

The results of the study have shown that there is no dental prophylactic examination in foreign students that testifies to necessary organizational changes, implementation of which is impossible without promotion on the part authorities and medical staff of Institutions rendering dental assistance to students as well as insurance companies. Moreover, methodological disassociation and the lack of universal approaches to dental health preservation of the higher school students are noted. The complex of the measures proposed will allow to significantly improve the condition of oral tissues and organs of the mouth in foreign students, to positively change their hygienic habits of oral care, stimulate behavior habits for maintenance of healthy life style that in turn will make it possible to reduce the students adaptation period to residence and studies in Russia as well as to increase the quality of foreign students’ life style and will help to be useful for medical practice in their home countries when they graduate from the institute.

Conducted a survey of the contents of the root canal and periapical lesions in 38 patients with clinical diagnosis of chronic pulpitis and chronic apical periodontitis (17 and 21 respectively), aged from 17 to 72 years. It was found that microbiocenoses in root canals have different composition in pulpitis and periodontitis, biofilms are associations of facultative and obligate anaerobes of 2 or 3 types. The efficiency of the use of irrigants 3% solution of sodium hypochlorite and 0.5% chlorhexidine solution was studied. Less activity was detected in 0.5% solution of chlorhexidine against obligate anaerobes allocated for chronic periodontitis.

In a study of the comparative assessment of the accuracy of an autonomous apex locator Raypex 5 and integrated apex locator in the device VDW Gold. For the experiments we selected 20 extracted single-root teeth with fully formed tips and a single canal. Measurements were made after dipping the teeth in the alginate mass at the level of necks. The analysis of the received data testified, that all readings of tested locators clinically acceptable. The analysis of the received data indicates that all readings of tested locators are comparable and clinically acceptable. Laboratory method of the study of the apex locators using alginate mass is convenient, economical, and allows to test several devices in parallel.

The use of up-to-date technology in diagnostics, treatment and patient`s rehabilitation with various anomalies, deformations and traumas of musculoskeletal area, combination of data received with digital processing, significantly exceed elimination quality of any pathological condition. However effectiveness of the treatment depends on taking into consideration the specifics in constitution and topography of several (special, separates) elements, entering in compound of area. And only regarding on all factors, defining morphometric characteristics objects of interference, allow recovering functional deformations, by maximum make its closer to natural conditions. The combined use of the methods of teleradiography, computer and magnetic resonance imaging to study the structure of bone structures of MFA on the same object provides information that significantly reinforce the concept of morpho-functional unity of all structural components of the facial part of the head.

The entire course of the conducted treatment of fractured crown incisors after endodontic treatment is described. Treatment results were confirmed by X-Ray.The treatment plan was divided into 4 parts:examination,endodontic treatment, therapeutic (the strip crown restoration) and observation (recall)

This paper presents a complex clinical case of retreatment of teeth 3.5 and 3.6 with combined endodonticperiodontal lesion. The inflammatory process in periodontium was initiated by errors in primary endodontic treatment - root was perforated when installing metal posts, and because of a close anatomical and topographic relationship between the dental pulp and periodontal tissues. Necrosis of the pulp leads to the development of the infection in periodontal tissue and the periodontal disease. Poor quality primary endodontic treatment of 3.5 and 3.6 led to the development of apical periodontitis and the inflammatory process in the periodontium. The successful result of recurrent endodontic treatment is presented.

The effectiveness of restoration of decayed teeth with molded inlays and fiberglass posts is discussed in the article. Using scanning electron microscopy (SEM), the authors investigated the degree of microleakage at fixing posts and root inlays. A self-etching adhesive and dual-cured cement were used. At small film thickness of cement there was no gap observed. Questions of micromechanical retention were discussed. The study results allow to recommend self-etching system and dual-cure cement for fixing posts/root inlays for the root canals.