Saratov JOURNAL of Medical and Scientific Research

Stomatology

Local effect of vitamin D on the immune system of periodontium

Year: 2019, volume 15 Issue: №1 Pages: 41-47
Heading: Stomatology Article type: Review
Authors: Ostrovskaya L.Yu., Zakharova N.B., Bodyleva А.Р., Bulkina N.V., Lysov A.V., Osipova U.L.
Organization: I.M. Sechenov First Moscow State Medical University, Saratov State Medical University
Summary:

 Literature review is devoted to the analysis of scientific findings about extraosseous effects of vitamin D on the immune system of the periodontal tissues. It was found that the biological functions of vitamin D (VD) in the body are diverse.Along with the detailed study of the effect on metabolic processes in bone tissue, VD makes a significant contribution to a large number of processes that ensure the activity of the immune system. In addition, VD increases the production of "endogenous antibiotics". This allows us to consider VD as a therapeutic agent that prevents the development of inflammatory and destructive changes in the periodontal tissues in population with simultaneous slowing of bone loss and preservation of bone mass of the dentofacial system. Currently detected hidden hypovitaminosis VD in almost majority of the population is considered a leading factor in the development of periodontal disease and its prevention and treatment is one of the most important tasks of therapeutic dentistry.

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The role of chronic inflammation in the formation of dentigerous (follicular) cysts of the jaws in children

Year: 2018, volume 14 Issue: №4 Pages: 657-660
Heading: Stomatology Article type: Original article
Authors: Slesareva О.А., Potemina Т.Е.
Organization: Privolzhskiy Research Medical University, Nizhny Novgorod Regional Children's Hospital
Summary:

Purpose: to determine the role of chronic inflammation in deciduous teeth data in the formation of dentigerous (follicular) cysts of the jaws in children; to considerthe pathophysiological mechanism of follicular cysts formation. Material and Methods. Case histories of 134 patients of the department of maxillofacial surgery (dentistry) "Nizhny Novgorod regional children's hospital" from 2003 to 2013 with a diagnosis of "follicular jaw cyst" with different localization. Results. The dental status, specifically centers of chronic inflammation, in the area of follicular cyst formation was assessed. The connection with the ecological situation of the residence area of patients with the prevalence of follicular cysts of the jaws in children was found. Conclusion. The key role of chronic inflammation in the form of complicated forms of caries of temporary teeth for the development of follicular cysts of the jaws. The data of the study (the important role of chronic inflammation of the deciduous teeth in the formation of follicular cysts of the jaws in children) adverse environmental conditions of the place of residence will help to develop principles of prevention and examination for early detection of pathological changes.

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Use of adhesive systems in dentistry: past and present

Year: 2018, volume 14 Issue: №2 Pages: 234-239
Heading: Stomatology Article type: Review
Authors: Aslanyan M.A., Eremin O.V., Trufanova Yu.Yu., Aslanyan Mel.A., Eremin А.О., Bykova О.A., Zavyalov A.I.
Organization: Saratov State Medical University
Summary:

In recent decades, in the sphere of minimally invasive approach to preparing hard dental tissues, adhesive dentistry has made significant progress, revolutionizing many aspects of restorative dentistry. The attitude towards cavity preparation has changed due to adhesive systems as there is no necessary to prepare cavities with additional retention points to ensure mechanical adhesion with the filling material. Thus, the introduction of adhesive systems contributes to the preservation of more non-demineralized enamel and dentin in the preparation of hard dental tissues in accordance with the principle of "biological expediency". To achieve a better connection with the hard tissues of the tooth, a number of adhesive systems has been developed. The complexity of achieving a better connection is due to the heterogeneity of the structure and composition of the hard dental tissues, the hydrophilicity of the exposed dentin surface, smear layer formed during the preparation of the cavity and the characteristics of the adhesive system, such as its physical and chemical properties and the way it interacts with enamel and dentin. With the development of technologies, adhesive systems have evolved from systems that do not involve the etching of hard dental tissues to systems with preliminary total etching and self-etching adhesive systems.

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Study of Zn-hydroxyapatite crystals formation and growth on dentine base at ultrasonic influence

Year: 2017, volume 13 Issue: №2 Pages: 260-265
Heading: Stomatology Article type: Original article
Authors: Kazakova L.N., Tereschuk O.S., Kuligin A.V., Suetenkov D.Ye., Pichkhidze S.Ya., Garievskaya A.V.
Organization: Saratov State Medical University, Yuri Gagarin State Technical University of Saratov
Summary:

The objective: the study analyses the features of spontaneous growth of hydroxyapatite crystals on dentinal substrate using (by the use of) artificially grown Zn-hydroxyapatite combined with ultrasonic treatment. Material and Methods. A dynamic study of dentinal substrate structure was conducted in a certain time interval after standard primary surface treatment of dentin micro-sections, divided into control and experimental groups. Dentin surfaces in the second group were covered by finely dispersed Zn-hydroxyapatite in combination with ultrasonic treatment. The investigation was performed by use of analytical complex based on scanning electron microscope with high resolution SEM Mira II LMU (Tescan) and energy dispersive analysis system. Results. There were revealed the structural changes of dentinal substrate surface overtime period due to directional growth of Zn-hydroxyapatite crystals. Conclusion. The conducted study showed the possibility of formation of the stable structures in the dentinal substrate when using Zn-hydroxyapatite in combination with ultrasonic treatment.

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Improvement of technology of clasp dentures manufacture

Year: 2016, volume 12 Issue: №4 Pages: 589-592
Heading: Stomatology Article type: Original article
Authors: Komlev S.S.
Organization: Samara State Medical University
Summary:

The aim of the article is to improve the technology of clasp dentures manufacture. Material and Methods. Orthopaedic treatment of 27 patients was conducted using advanced technology of manufacturing clasp dentures at the Department of Prosthetic Dentistry at Samara State Medical University. Results. Conducting the orthopaedic treatment a method of obtaining an impression in prosthetics on implants and teeth, a method of manufacturing clasp denture with locking fasteners and a method of manufacturing a clasp denture with a questionable prognosis of bearing tooth were used. Conclusion. Using the advanced technology of manufacturing clasp denture has solved the problem with unreliable periodontal tissues, loss of a removable part of clasp denture and allowed to improve the quality of obtaining impression from bearing teeth.

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Posmetnaya TV. Peculiarities of clinical and X-ray findings at women during postmenopause with chronic generalized periodontitis determined by mineral bone density

Year: 2016, volume 12 Issue: №4 Pages: 586-588
Heading: Stomatology Article type: Original article
Authors: Eremina N.V., Ismailova О.А., Strukov V.I., Kirillova T.V.,
Organization: Penza Institute for Advanced Training of Physicians
Summary:

The aim: to study clinical and X-ray specifics of chronic generalized periodontitis of women during a postmenopaus-al period determined by mineral bone density. Material and Methods. 80 women having chronic generalized periodontitis during a postmenopausal period were examined using clinical and X-ray research. Material of bone density was taken into consideration. Results. Decrease of hygienic indices of women at postmenopausal period has been found. It depends on the degree of severity of chronic generalized periodontitis. There was a reverse connection of periodon-tal index and mineral density of bone tissues in the 1-st group: — 0.9 (p<0.05), in the 2-nd group: — 0.5 (p<0.05), in the 3-rd group: — 0.79 (p<0.05). Cone-beam computer tomography made possible to find out the initial signs of edge osteoporosis of interdental partitions at the light degree of chronic generalized periodontitis and signs of spot and homogenous osteoporosis of gum bones, osteoporosis of interdental partitions with osteolysis at mild and severe degrees of severity. Conclusion. The clinical researches with cone-beam computer tomography and densitometry have revealed the exact data on the condition of bone tissues. The results have given an opportunity to plan osteotropic therapy and to control the dynamics of the process correctly.

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Effect of vitamin D3 on the cytokine synthesizing activity of cells of gingival fluid

Year: 2016, volume 12 Issue: №3 Pages: 403-407
Heading: Stomatology Article type: Original article
Authors: Ostrovskaya L.Yu., Zakharova N.B., Mogila А.Р., Katkhanova L.S., Akulova E.V., Lysov A.V.
Organization: Saratov State Medical University
Summary:

Purpose: to study the effect of vitamin D3 on cytokine activity of macrophages and monocytes of gingival fluid. Material and methods. The examination and treatment of 42 patients with chronic generalized periodontitis at the age of 45-50 years were conducted. Gingival fluid was obtained from the periodontal pockets of patients. Material processed statistically. Results. Colecalciferol efficacy in inflammation and processes of destruction of periodontal tissue was twice higher than using traditional therapy. Resistance anti-inflammatory effect of the drug was maintained for 6 months, which had been confirmed by clinical and laboratory investigations. Conclusion. The use of applications of vitamin D in the treatment of periodontitis may achieve compensatory restoration of immune protection of the oral cavity.

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Methods of orthopedic treatment of dentition defects

Year: 2016, volume 12 Issue: №3 Pages: 399-403
Heading: Stomatology Article type: Review
Authors: Konnov V.V., Arutyunyan M.R.
Organization: Saratov State Medical University
Summary:

The article is devoted to the methods of orthopedic treatment of dentition defects. To restore the functionality and individual aesthetic standards of dental system, with different types of partial loss of teeth, depending on the anatomical and topographical conditions, various kinds of dental prosthesis designs are used in the oral cavity: non-removable (bridges, cantilever, adhesive) dentures and removable (laminar and clasp dental) prostheses, as well as their combinations.

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Parameters of quality of life of dental patients with various psychotypes

Year: 2016, volume 12 Issue: №1 Pages: 49-51
Heading: Stomatology Article type: Original article
Authors: Turusova Е.М., Bulkina N.V.
Organization:
Summary:

The aim is to study the effect of oral pathologies in the quality of life of patients, depending on the psychological characteristics of the individual. Material and Methods. The study involved 100 patients with included dentition defects and chronic generalized periodontitis. The index PMA, PI and hygiene index of Greene — Vermillion were identified in all patients. To assess the quality of life we used the OHIP-14 questionnaire. To assess the psychotype we used the modification of the questionnaire, developed in 2005, St. Petersburg. Results. There is a dependence of changes in the quality of life of dental patients with various psychotypes. Conclusion. Patients with a variety of personality types react differently to oral health, and it should be taken into account when choosing the tactics of conduct with patient data, as well as the choice of treatment and at all the stages of treatment.

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Ontogenesis of the alveolar walls of the tooth germ according to orthopantomography

Year: 2015, volume 11 Issue: №4 Pages: 561-565
Heading: Stomatology Article type: Original article
Authors: Okushko M.R., Suetenkov D.E., Chependyuk Т.А.
Organization: Saratov State Medical University, Pridnestrovian State University n.a. T. G. Shevchenko
Summary:

Objective: to identify changes of the configuration and size of the walls of the alveolar stages of ontogenesis. Materials and Methods. Orthopantomograms studied 196 children aged 5 to 12 years. We used visual and morphometric methods. Results. The data on the three diameters of the dental alveoli (proximal, middle and distal) has been presented, under which subsequently the main stages of age transformation have been highlighted. Conclusion. Transformation of the alveolar walls radiologically determined and its advancing character in relation to the macroprocesses in the germ tooth have made it possible to consider alveolus as one of the leading biological tools of odontogenesis.

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