[Evaluation of the photodynamic effect on the state of microcirculation and oxygenation in periodontal tissues in the treatment of chronic generalized periodontitis]. / Otsenka fotodinamicheskogo vozdeistviya na sostoyanie mikrotsirkulyatsii i oksigenatsii v tkanyakh parodonta pri lechenii khronicheskogo generalizovannogo parodontita.

OBJECTIVE: Increasing the effectiveness of treatment of chronic generalized periodontitis using PDT based on clinical and functional substantiation of the effects of a photosensitizer. MATERIALS AND METHODS: A clinical and functional study and treatment of moderate chronic generalized periodontitis was carried out in 62 people (26 men and 36 women) aged from 35 to 55 years without a somatic model with an orthognathic occlusion diagnosed according to ICD-10 - K05.3. Of these, 2 groups were divided depending on the type of treatment: Group 1 (main) - patients with moderate chronic generalized periodontitis - 32 people. (17 men and 15 women, average age of the group - 43.2±2.2 years); Group 2 (control) - patients with moderate chronic generalized periodontitis - 30 people. (14 men and 16 women, average age of the group - 44.0±3.3 years). Complex treatment consisted of sanitation of the mouth, removal of dental plaque and curettage of periodontal pockets in group 1, followed by PDT with Revixan gel using a special wired aligner REVIXAN DENTAL LED (16 r). The clinical condition of the periodontium was assessed using the Greene Vermillion Hygienic Index (OHI-S), the Mühlleman Bleeding Index (SBI) modified by Cowell, and the periodontal index PI. To study the state of microcirculation in the gum tissue, the laser Doppler flowmetry (LDF) method was used using the LAKK-M device (NPP «Lazma¼, Russia). The state of microcirculation was assessed by the microcirculation index (M), which characterizes the level of tissue blood flow; parameter - «σ¼, which determines the fluctuation of the erythrocyte flow. According to Wavelet analysis of LDF-grams, the shunt index (SH) of blood flow was determined. In the «LDF + spectrometry¼ mode, oxygenation in periodontal tissues was studied using optical tissue oximetry (OTO), based on the results of which the perfusion saturation index (Sm) and the specific oxygen consumption index (U, %) were determined. RESULTS: According to LDF data, after PDT (group 1), normalization of clinical indices and the level of microcirculation in periodontal tissues was established, which was accompanied by an increase in the level of blood flow (M) and its activity (σ), which persisted after 3 and 6 months. after PDT. The perfusion saturation index (Sm) and specific oxygen consumption (U) increased more significantly after PDT, which persisted after 3 and 6 months. In the control group, the dynamics of indicators was less pronounced. CONCLUSION: The use of PDT with Revixan gel normalizes the clinical condition of the periodontium, indicators of microhemodynamics and oxygen metabolism.

[Modern achievements of the functional diagnostics in dentistry]. / Sovremennye dostizheniya funktsional'noi diagnostiki v stomatologii.

The article presents the development of functional research methods in the maxillofacial region, methods of their application and the results of scientific research on the study of the neuromuscular balance of the masticatory muscles with defects and deformations in the maxillofacial region. Methods of blood circulation research (laser doppler flowmetry, ultrasound dopplerography, computer capillaroscopy) have been developed and implemented in the tissues of the maxillofacial region: periodontal, tooth pulp, in the mucous membrane of the alveolar ridge, which allowed us to study the mechanisms of disease pathogenesis and monitor the effectiveness of treatment in the maxillofacial region.

[Achievement of consensus and standardization of methods in dentistry on the example of studies of support reactions (posturography, stabilometry)]. / Dostizhenie konsensusa i standartizatsiia metodov v stomatologii na primere issledovanii opornykh reaktsii (posturografii, stabilometrii).

Comprehensive treatment of dental pathology involves a multidisciplinary integration of doctors, the use of general physiological control methods and correction of human conditions, such as study of support reactions (on the stabilometric platform). Participation of dentists in the public scientific-methodological initiative 'Moscow consensus on the use of stabilometry and biofeedback for the support reactions in public health practice and research' increases the efficiency of application of this method in dentistry and the development of relationships with other practical areas.

[Relationship between masticatory muscles activity and motor cortex activation during treatment of patients with distal malocclusion]. / Vzaimosviaz' izmeneniia aktivnosti zhevatel'nykh myshts i motornykh zon kory golovnogo mozga pri lechenii patsientov s distal'noi okkliuziei.

The processes of neuroplasticity of the motor cortex of the brain were evaluated in the treatment of 20 (12 women and 8 men) patients aged 18-35 years (22.5±1.5 years) with distal occlusion using functional magnetic resonance imaging (fMRI), as well as comparison of surface myography (EMG) data to assess the adaptive capabilities of the tooth-jaw system and the central nervous system against the background of orthodontic correction. Correction of distal occlusion was carried out using ceramic braces 'Damon' (f. 'Ormco', USA). The advancement of the lower jaw forward with bite enhancement was carried out using the Twin force device ('Ortho Orgonizers GmbH', Germany). The study was conducted in five stages: 1) before orthodontic correction; 2) before installing the Twin force device; 3) after anterior displacement of the lower jaw and bite enhancement on the Twin force device; 4) after removing the brackets; 5) 1.5 months after the treatment. FMRI proved to be a useful tool for orthodontic treatment efficacy assessment and neuromuscular adaptation of maxillofacial structures to changing functional status.

Functional disorders in patients with lip and nose deformity after cheilorhinoplasty. / Funktsional'nye narusheniya u patsientov s deformatsiei guby i nosa posle odnostoronnei kheilorinoplastiki.

Clinical analysis of the nasolabial complex in patients suffering of the unilateral cleft lip and palate deformity after cheilorhinoplasty is presented in the article. Functional disorders such as nasal breathe impairment and it's relation to the nasolabial muscle dystonia in the dependency of primary cheilorhinoplasty type are analyzed. The plan of surgical treatment as well as the postoperative rehabilitation using the botulotoxin injections is offered.

[EMG functional changes in masticatory muscles by elastopositioner use in patients with TMJ dysfunction].

The analysis of the results of EMG studies in patients with TMJ dysfunction was carried out before and after use of elastpositioner "Corrector". The study revealed significant functional disturbances of the masticatory muscles, which were corrected after applying elastpositioner: there was a trend to decreased activity of masseter and temporal muscles, especially in the stagе of rest.

[Sensory disorders in inferior alveolar nerve after sagittal split osteotomy of the mandible].

Methodology of the sagittal split osteotomy of the mandible improved from year to year. However, there is still the problem of neurosensory disorders of inferior alveolar nerve in the early and late postoperative period is widely covered in the foreign literature. The incidence of these disorders ranges from 40 to 55%. During 2009-2013 years in Central Research Institute of Stomatology and Maxillofacial Surgery were operated 127 patients with associated deformities of the jaws: 102 according to traditional methods, 25 - by improved methods. Assessment of lower alveolar nerve conducted by electric teeth pulp test methods, blink reflex, computed tomography in 3D mode and the questionnaire. The results showed that the improved method of the sagittal split osteotomy of the mandible by using piezoelectric bone surgery saw during cutting of the cortical bone of the mandible and special splitters with replacing of damaging factors makes it possible to reduce the incidence of neurosensory disorders of inferior alveolar nerve and reduce the time of rehabilitation.

[Stabilometric features of vertical stability in healthy individuals by short-time bite change].

The aim of the study was to evaluate vertical stability changes according to stabilometric findings under artificial short-time disturbed occlusion. Twelve individuals were included in the study and vertical stability was assessed in stability platform before and under short-time bite change. The registered changes might be connected with an approximate reaction and random reasons. There is a possibility of bias by mechanical transfer of the stabilometric study results on the diagnosis of dental status.

[Correlation of bioelectric activity of maxillofacial muscles with postural status and chewing function in patients with disocclusion].

The aim of the study was to evaluate the correlation between the activity and the function of the maxillofacial muscles and the postural status in patients with the Class II malocclusions. The study revealed posture stabilizing function of sterno-cleido-mastoid muscles and interference of postural and maxillofacial muscles. In addition in class II patients asymmetric masticatory dysfunctions were identified.

[Some issues of the relevant values of stabilometric study in dentistry].

New stabilometry value associated with energy consumption of the examinee is proposed and clinical case illustrating its use for complex prosthodontic treatment quality assessment. Need for national guidelines on stabilometry for dental practice is also discussed.

[Electromyographic evaluation of functional status of temporal muscles and mastication muscles in patients with close position of frontal teeth in cases of different occlusion].

Functional status of mastication muscles in 44 patients of the age 19-35 years with close position of frontal teeth and different occlusion variants was studied. General electric activity of mastication and temporal muscles (IMPACT, mkV/s), index of proportional activity of symmetric muscles (capital ER, Cyrilliccapital O, Cyrilliccapital ES, Cyrillic, %), activation index (ATTIV, %) and torque coefficient (TORS, %) were determined. According to the received results in patients with close position of frontal teeth and different occlusion variants some disbalance was disclosed in the work of mastication muscles that testified to functionally unstable occlusion and the necessity of its correction.

[The reaction of pulp vessels to various adhesive systems]. / Issledovanie reaktsii sosudov pul'py na primenenie razlichnykh adgezivnykh sistem.

The reaction of pulp vessels to various adhesive systems was studied: qualitative and quantitative characteristics of pulse curves reflecting the pulp blood filling were studied. Study of the reaction of pulp vessels showed that acetone-containing adhesive systems immediately caused a constrictive reaction, while use of an acetone-free adhesive system led to the minimum changes in the functions of pulp vessels.