It is generally admitted that complications during treatment of chronic odontogenic maxillitis and recurrences of the disease are related to the abnormal architectonics of the nasal cavity and to the pathology of other paranasal sinuses. Radiographic imaging often fails to detect a pathological process especially in the nasal cavity, ethmoidal labyrinth and sphenoidal sinus. Bacteriology assay is the most informative technique for evaluating genesis and character of inflammatory process in the nasal cavity and paranasal sinuses. It was found in most cases that both nasal cavity and paranasal sinuses are involved in pathological process. Therefore appropriate corrections of treatment plan are needed. For treatment was recommended the new form of fluqunolones – «Haileflox-750».

The characteristics of quantitative and qualitative changes in the composition and properties of hard tissues of teeth and mixed saliva among children of primary school age living in the North Keywords: mixed saliva, hard tissues of teeth, temporary and permanent teeth, dental caries. A comprehensive study of dental school-age children in secondary schools in the city of yakutsk was carried out. We examined 117 children at the age of 8 years. Noted a high prevalence of dental caries in permanent teeth of children surveyed, which was 57,51 ± 0,15%, and the frequency data destruction temporary and permanent teeth were at 98,24 ± 0,03%. The intensity of caries in permanent teeth by the index of DFMT in the examined children was 1,92 ± 0,18, and DFMT+perm – 2,05 ± 0,18. The obtained data dictates the need to intensify measures aimed at neutralizing the identified risk factors and implementation of a comprehensive prevention of dental caries in the child population of the Republic of Sakha (yakutia).

The aim of this study was to determine the status of local immunity in the oral cavity of patients with chronic apical periodontitis before and after management of endodontic treatment. To assess the state of local immunity studied the content of secretory immunoglobulin A (sIgA), serum IgA and IgG by radial immunodiffusion. The coefficient of the balance factor of local immune factors (CBF) was calculated as an integrated indicator of the local immunity of the oral cavity. As a result of research of local immunity of oral cavity for 42 patients in age 35-44 with a diagnosis chronic apical periodontitis is educed decline of level of secretory immunoglobuline A and lizocyme, reduction of balanced factor of the local immunity balance coefficient. Rational endodontic treatment, oral cavity sanation, educating to the rational hygiene of the oral cavity is accompanied by the positive dynamics of the immunological indexes.

The article represents the review of the russian and foreign literature devoted to various mechanisms of antibacterial activity of calcium hydroxide. Methods of entering and removal of a preparation from the root canals are surveyed. The attention is paid to influence of a vehicle on antibacterial activity of calcium hydroxide. Effectiveness of conservative treatment depends on the form of periodontitis, used tools and techniques, body resistance, the presence of somatic diseases. Currently, much attention is paid to the calcium hydroxide preparations on the basis of a viscous, which include the iodoform.

In the review the historical background, the data on epidemiology of fractures of various types endodontics toolkit are presented. Most potentially dangerous tools are specified, the clinic of the given complication, and also medical tactics and methods of extraction depending on arrangement level fragment in the channel is described. Medical tactics is resulted at impossibility of fragment extraction. The basic rules for preventing fracture associated with instrumentation channels are given. Fractures of the endo-tool are easier to prevent than to treat, so the best tactic is to consider any endodontic instruments as single-use.

Restoration of teeth after endodontic treatment is one of the most important steps in the practice of dentist-orthopedist. The strength of the remaining tooth structure depends on the amount of remaining dentin, and resistance to fracture increases with the thickness of the dentin. Using the «golden rule» setting the posts into the root canal of a tooth can avoid many complications, thereby improving the quality of their work and increase its service life. It was built up 76 stumps of teeth by the method chosen by the authors. Restoration of tooth stump by composite material with a cap-formers can significantly improve the quality of treatment and to reduce the number of complications in the long-term period after prosthesis.

Methods of diagnosis, their combination with a computer, digital equipment, often used in the dental practice treatment, imposing new requirements for morphological studies. Individualized treatment can not be made without regard to the individual patterns in the structure. It is important to show the range of individual variation in structure of the upper jaw and not to accept these changes as a pathology. on the adult people skulls (102 objects), data analysis of computed tomography (45 cases), histo-topographic cuts (30 blocks), the individual characteristics of outer contours of the upper jaw structures and the features of its intraorgan anatomical structures are presented. This paper gives a detailed description of the upper jaw. The main attention is given with regard to their use as landmarks or objects of direct intervention in the dental practice.

In dental practice, improvement of introduced treatment methods, should be based not only on the use of modern equipment, but on the modern theoretical and morphological developments. This work is carried out through a combination of classical craniometric (104 objects) and X-ray analysis (CT) research methods. The results showed the presence of asynchrony quantitative and qualitative changes in the structure of the upper jaw in different age groups. In the early postnatal age period, advancing factors of change in the external and the internal structure of the upper jaw are the structures that are directly related to the organ of vision (neural type of development). In process of the oral cavity formation(teeth, tongue), details of the maxilla anatomical structures age changes, associated with them (somatic type of development) were found.

Сlinical case of treatment 9 years old girl with chronic periodontitis developed due to injury of the tooth 1.2. After examination the diagnose was: «Apical chronic periodontitis of tooth 1.2 K04.5.» according to ICD-C. Treatment plan was agreed with patient's parents. The course of undergoing treatment is described. Positive result was achieved after twenty-one months and confirmed radiologically.

The purpose of this scientific research was drawing up of algorithm of optimum planning of a technique of operation at patients with extensive cysts of jaws, comparison of indicators of an information of most often carried-out beam methods of research in particular is made at this pathology. Hi-tech methods of beam research – a computer tomography showed the greatest information and diagnostic value. Efficiency of treatment depends on a right choice of a technique of operation. In turn, the method of operative intervention depends on anatomotopographical relationship of pathological process. Thus, the more information it is received in inspection, the more it is possible to avoid complications and recurrence, to create favorable conditions for bone regeneration.

Design features of the endodontic instrument determine its essential properties. Information about these design features carries inference about instrument properties and makes possible a comparative analysis of instruments with different design. The aim of the present work is a quantitative study and analysis of the Pro-File instruments design features. Thirty instruments of different size and taper have been included in this study. SEM examination of all instruments and their cross-sections was made to determine the following design parameters: tip angle, fluting angle, pitch length, fluting depth, internal and external diameters and the angles of cutting blade. Design features analysis of the ProFile instruments allows pointing out its outstanding characteristics: 1) high flexibility; 2) high cyclic fatigue resistance; 3) the ability to preserve the original root canal anatomy; 4) low cutting ability; 5) substantial screwing-in effect of the instruments of greater sizes.