Preparations of calcium hydroxide have widely started to be used in endodontics since 1920. In domestic literature there are not enough data on quality of processing of root canals after temporary sealing by such preparations. In our research we suggest to use for removal of preparations of calcium hydroxide solution for drying and degreasing of root canals. The quality and quantitative evaluation of processing of root canals after temporary sealing by calcium hydroxide on the basis of the data radiological research and data of scanning electronic microscopy were conducted. The results obtained allow to recommend the use of a solution for drying and degreasing of the root canal to remove the drug Hydrol Metapex of the root canal.

According to one hypothesis, dentin sensitivity is due to the movement of fluid in the dentinal tubules and the displacement of odontoblasts, which is perceived by nerve receptors of the pulp. Elimination of symptom of limited hyper sensibility in case of the dentin caries and the prevention of its complications in children is in the use of means which seal dentinal tubules and in inactivating the nerve endings. In the experiment the extent of penetration of a small disperse hydroxyapatite (SD HA) at tubules of dentine of teeth was estimated. In artificially created carious cavities on a dentine about a pulp we placed the paste of SD HA and subjected it to influence of ultrasound of small intensity. By results of scanning electronic microscopy of cuts of teeth it is established that SD HA provides a reliable sealing tubules of dentine and it can be applied as one of means to removal of a symptom of sensitivity of a tubules of dentine and prevention of complications of treatment of initial pulpitis.

According to studies, a significant portion of the adult population experiences the fear of dental procedures, a visit to the dentist for them is the psycho-emotional stress. Provision of psychological comfort of the patient safety is an important part of dental treatment. The authors determined the effectiveness of the drug of Afobazol and a homeopathic remedy Adrenaline C30 to the correction of stress conditions on outpatient dental examination. A single application of Afobazol as stress-protective drug at a dose of 20 mg for 50 min before dental interventions is not recommended for correction of stress on the dental examination. Adrenaline C30 reduces the level of anxiety and level of catecholamines for all indicators and is recommended for use by dentists to correct stress in patients with high levels of situational anxiety.

Teeth with the elements of destruction in the periapical area are centers of chronic infection, which is used to treat different types of antiseptics. Pelotherapy implemented in gastroenterology, urology, the treatment of infectious diseases. The authors set the task to develop and test in clinical dentistry an alternative method of exposure of anthocyanins-rich clays in the biocoenosis of the root canal system and periapical tissues. The aim of this study was to determine the effect of anthocyanins on the bactericidal activity of clays from Novonelidovskogo and Nechaevsky deposits of the Belgorod region on the biocoenosis of periapical tissues. The results of the first phase of the development of antiseptic on the basis of clay minerals enriched in anthocyanins are presented. With respect to biological material derived from the root canal system in patients suffering from chronic periodontitis, revealed a different bactericidal capacity of the studied clays, depending on their place of production and method of preparation. These results demonstrate the promising perspectives in development of preparations for antiseptic treatment of the root canal system based on natural ion exchangers rich by anthocyanins.

In this article described the current understanding of morphological and functional relationship between endodontics and periodontium. It is noted that the relationship between endodontics and periodontal performed by vascular and tubular ways. Denoted the role of chronic odontogenic infection in the formation of focal diseases of internal organs and systems of the human body. Presented different national and foreign scientists hypotheses on the impact of periodontal inflammation in dental pulp and inflammation of the pulp in periodontium.

Chronic apical periodontitis can lead to the formation of large bone defects. The tooth, which became the cause of apical granuloma or cysts, often, have to be removed. Festering cyst can cause the development of an abscess or phlegmon of tissues in maxillofacial area and affect the health of the body. Timely endodontic treatment helps to avoid complications. The root cyst is often found in the diagnosis on the panoramic radiographs. This article provides a clinical case of endodontic treatment of a radicular cyst of the tooth.

Presented clinical case is to show how to solve problems arising in the retreatment of «resorcined» teeth. Teeth treated with resorcinol-formalin method have a high enough percentage of complications in the long-term periods. In the absence of conditions for re-treatment of the root canal of a tooth its extraction is recommended. Difficulties arise when endo-revision of «resorcined» teeth in most cases can be solved only by using special tools and techniques: cone computed tomography and qualitative increase (dental microscope), an ultrasonic device, abundant irrigation and high-quality three-dimensional obturation of the root canal system.

Continuing pain after root canal treatment, swelling, the occurrence of fistulous, the severity of periapical changes are the indications for repeated endodontic treatment. Mineral trioxide aggregate (MTA) is a reliable bioactive material proposed for widespread use in endodontics, in particular as an obturation material. The article contains a review of the literature on the use of MTA as an intracanal filling material, a comparison of the clinical effectiveness of the methods and principles of its placement, a description of the results of treatment of apical periodontitis. A technique and clinical cases of MTA use in conjunction with thermocompaction of gutta-percha. A new technique combining materials, which can increase positive outlook during the endodontic retreatment.

This paper describes the features of endodontic interventions in elderly patients, allowing to exclude complications of the general condition of the body associated with prolonged forced position of the patient in the dental chair, and provide quality care. It is considered appropriate to reduce this category of patients, duration of endodontic interventions and increase the number of visits. The use of dosed electrophoresis (depophoresis) by Knappvost to avoid infection of the root canal and improve the quality of endodontic treatment. Security of endodontic treatment of teeth in elderly patients contributes to the use of amide anesthetics for pain relief without the vasoconstrictor and in reduced amount.

On the basis of data from clinical and radiographic studies of the stages in the late periods after endodontic treatment of permanent teeth in individuals of all ages evaluated the effectiveness of different endodontic techniques. Examined and treated 350 patients: I group teens and young adults (180 patients); II group - people aged 25 to 50 years (170 patients). A year later, the lowest success rate of 75,2% (complete recovery) was detected in the group of young patients, which used traditional methods of treatment of root canals, and obturation method was used for the cold lateral condensation of gutta-percha. The highest percentage of success was in the patient groups, which conducted a preliminary study of the characteristics endodontist teeth and surrounding tissues on the basis of dental volumetric CT scan, followed by combined use of endodontic individual technologies, taking into account the anatomical characteristics and the level of mineralization of hard tissues of teeth. In the group of young patients it was 95,6% in the older age group - 96,9%.