[The effectiveness of photodynamic effects on the clinical and functional state of periodontal tissues in periodontitis]. / Effektivnost' fotodinamicheskogo vozdeistviya na kliniko-funktsional'noe sostoyanie tkanei parodonta pri parodontite.

The aim the study. Increasing the effectiveness of treatment of chronic generalized periodontitis of moderate severity according to microhemodynamics and oxygenation in periodontal tissues. MATERIALS AND METHODS: A clinical and functional study and treatment of chronic generalized periodontitis of moderate degree were conducted in 56 people (22 men and 34 women) aged 37 to 55 years. The patients were divided into 2 groups depending on the type of treatment: group 1 (main) - 28 people (11 men and 17 women, the average age of the group was 43.5±2.8 years, photodynamic therapy (PDT) with 1% dimegin gel using an AFS Spectrum LED emitter with a wavelength of 660 nm and an energy density of 95 J/cm2), in group 2 (control) - 28 people. (9 men and 19 women, the average age of the group was 45.0±3.1 years) standard treatment was performed without PDT. The level of tissue blood flow, its activity and vasomotor activity of microvessels, as well as the blood flow bypass index were determined by laser Doppler flowmetry. The study of oxygenation was carried out by optical tissue oximetry with determination of the index of oxygenation, specific oxygen consumption and perfusion oxygen saturation. RESULTS: After PDT, the periodontal tissues showed an increase in blood flow by 65.5% after 3 months, the level of oxygen metabolism increased by 51%, which increased after 6 months. The use of PDT in the complex treatment of chronic generalized periodontitis of moderate severity has an activating effect on the microcirculation system and the level of oxygen metabolism in periodontal tissues both in the near and long-term follow-up periods. CONCLUSIONS: The use of PDT with 1% dimegin gel has an effective effect on the state of microhemodynamics and oxygenation in periodontal tissues.

[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.

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.

[Dental pulp microvascular reaction in cases of dentine caries treatment by modern nanocomposite materials].

Dental pulp hemodynamics in cases of dentine caries treatment by light cured nanocomposite materials was altered that was characterized by its changing indicators and changing hemodynamic regulation mechanisms depending upon carious cavity depth. Microvascular reaction in dental pulp upon hard dental tissues preparation was accompanied by hyperemia development in microcirculatory bed, its character and degree of expression depended upon carious cavity depth. This reaction was amplified after etching and light polymerization. Hemomicrocirculation normalizing in dental pulp after dentine caries treatment was achieved in 1 week in case of intact parodontal tissues and in 1 month in cases of catarrhal gingivitis and parodontosis.