[Analysis of the quality of preventive examinations of children (according to the survey of dentists)]. / Analiz kachestva provedeniya profilakticheskikh osmotrov detei (po dannym anketirovaniya vrachei-stomatologov).

OBJECTIVE: To improve the methodology for conducting preventive examinations of children by a dentist by identifying and preventing the risks of achieving their qualitative results. MATERIAL AND METHODS: A test version of the questionnaire was created, which was tested in a pilot study to assess validity and correction. A survey of 100 general dentists in Smolensk, Kaluga, Kaliningrad, Tula, who had previously participated in preventive dental examinations of children, was conducted. Questions were asked regarding the problems of organizing inspections, training, proposals for improving inspections. A comparative analysis of the risks of reducing the quality of examinations for each of the regions was carried out, proposals were made to improve the organization and conduct of medical examinations of children. RESULTS: As a result of the survey, a significant similarity of opinions of dentists in four cities of the Russian Federation on the problems and risks of annual preventive examinations of children was established. Among the weaknesses of the process, one should highlight the lack of time to examine the child; lack of specialized premises and a nurse; the absence of a unified form of a dental preventive examination card. This reduces the quality of diagnostics and continuity of medical care. Self-assessment by general practice dentists of their training in relation to diagnostics in children demonstrated a low level of knowledge of the issues of bite pathology, oral mucosa, and age periods of the dentoalveolar system. The lack of medical knowledge of more than 70% of doctors involved in preventive examinations of children is a key risk that requires immediate corrective action. CONCLUSION: The results of this study are the basis for the recommendation of advanced training of dentists at least once every three years on the subject of preventive examinations of children. The process of dental medical examination of the child population needs to be corrected at the legislative and executive levels.

Study of the Biocompatibility of Titanium-Niobium Implants by the Parameters of Their Osseointegration under Experimental Conditions.

Superelastic titanium alloys (titanium-niobium-zirconium and titanium-niobium-tantalum) are considered to be the more advantageous choice for dental implants than titanium alloys due to their physico-mechanical properties close to those of the bone tissue. Morphological studies of the biocompatibility of these alloys in comparison with titanium were carried out in vivo. Scanning electron microscopy and microprobe elemental analysis of the tissue along the interface between the bone and titanium/superelastic titanium alloys showed similar morphology and elemental composition both on days 30 (poorly mineralized connective tissue was detected in sites of contact with titanium alloy samples) and 90 after surgery (the surface of the titanium alloy samples was covered with mineralized tissue similar by its composition to the surrounding bone).

Experimental Study of the Biomechanics of Maxillary Implants under Conditions of Biomechanical Modeling.

We studied the stress-strain state of the bone tissue and maxillary full-arch fixed implantretained denture. Load was applied to the anterior (150 N) and posterior (250 N) parts of the denture supported by 6 or 4 implants, including zygomatic ones and placed by on-all-4 treatment technology. The obtained stress values in the bone tissue, implants, and denture show a large strength margin of structural materials. At the same time, the bone strength values were low, especially around the zygomatic and distal implants of all-on-4-implants-supported dentures when the posterior part of the denture was under load.

[Analysis of the efficacy and safety of electric toothbrushes Oral-B with oscillating-rotating technology in «Healthy smile¼ program].

The aim of study was to investigate the efficacy and safety of individual oral hygiene in adult patients by regular use of electric toothbrushes with the oscillating-rotating technology basing on data obtained during the implementation of «Healthy Smile¼ program. Questionnaires of 7022 dentists in Russia and Ukraine were used to assess personal experience of using Oral-B PC 5000 toothbrush. The dental status dynamics after regular use of Oral-B PC 500 tooth brush was evaluatedin 21 088 patients within 12 weeks. It was found out that the use of electric toothbrushes with the oscillating-rotating technology for individual oral hygiene provided a significant improvement of oral hygiene in 93.5±0.17%, reducing plaque in 92.5±0.18% of patients, improving gingival condition in 87.1±0.23% of participants of the Program. The effectiveness of the implemented algorithm of clinical testing and practical application of innovative, high-tech personal oral hygiene tools is proved.

[Experimental base for construction alloy choice for implant-retained restorations].

The paper contains the results of experimental studies on galvanic features of "implant-construction alloy" contact pair. These results may be used as criteria for implant-retained restorations alloy choice.

[Principles of bone tissue structures interaction with full removable dentures fixed on intraosseous implantates modelling].

Math modelling "removable dentures-implantate-bone" with size and density of bone tissue as variables was created. It allowed to study biomechanical bases of mandibular bone tissue structures interaction with full removable dentures of different constructions and fixed on intraosseous implantates. Analysis of the received data showed that in the majority of cases it was expedient to recommend 3 bearing (abutments) system of denture making. Rest on 4 and more implantates was appropriate for patients with reduced density of spongy bone and significant mandibular bone atrophy. 2 abutment system can be used in patients with high density of spongy bone and absence of mandibular bone atrophy.

[Results and prospects for combined treatment of periodontal diseases (clinico-experimental study]. / Rezul'taty i vozmozhnosti kompleksnogo lecheniia zabolevanii parodonta (kliniko-éksperimental'noe issledovanie).

Combined treatment was studied of 169 patients with chronic generalised periodontitis in moderate or severe stages, including local pharmacological and laser therapy, selected teeth grinding, transdental implantation, splinting, immediate denture with preliminary collagen plastics of alveolar bone. Positive follow-up results confirmed by experimental data have been received.