[The effect of astaxanthin on the adaptation of the oral mucosa to a removable denture].

The Aim: Of this study was the evaluation of the effect of the antioxidant gel on the oral mucosa and reduction of the time of adaptation to a removable denture in patients with partial adentia.

Material And Methods: The study comprised 105 patients aged 30-65 years divided into three groups: the main group of 45 patients, the comparison group of 35 patients, the control group of 25 patients. The main group was given a prophylactic gel with natural astaxanthin after the delivery of a removable prosthesis.

[Clinical and laboratory studies of light-curing base material for the manufacture of intraoral orthodontic devices].

Objective: To study the physical and mechanical properties of the new basic light polymer material in clinical conditions in pediatric orthodontic patients.

Material And Methods: The strength properties of 113 basic orthodontic devices made of photopolymer material without reinforcement with a screw, vestibular arch, and clasps t (55 devices, 30 of them for the upper jaw, 25 for the lower jaw) and with quartz mesh reinforcement of the base (58 devices: 30 for the upper jaw, 28 for the lower jaw) were studied in 60 children aged 3 to 12 years in the periods of temporary and removable bite.

Results: In total, breakdowns of the base in devices without reinforcement were noted in 5.

Changes in the Time-Domain of Heart Rate Variability and Corticosterone after Surgical Trauma to the Nasal Septum in Rats.

The aim of the work was to study changes in the time range of heart rate variability (HRV) against the background of changes in the concentration of corticosterone in blood plasma in rats after surgical trauma to the nasal septum. Septoplasty was simulated in 30 mature male Wistar rats weighing 210-290 g. ECG was recorded with subsequent analysis of the time domain of HRV, as well as blood sampling to estimate changes in the concentration of corticosterone in the blood plasma was performed.

[Reinforcement of photosensitive material for bases of orthodontic appliances].

Objective: The objective of the study was to improve the strength properties polymer by modifying its basis with various materials.

Material And Methods: A polymer in the form of a pink-colored plasticine mass with veins was studied, a quartz mesh «Quartz splint mesh» manufactured by RTD (France) and two metal gold-plated wire mesh (0.1 mm and 0.

Comparison of the Effects of Septoplasty and Sinus Lifting Simulation in Rats on Changes in Heart Rate Variability.

The effects of septoplasty and sinus lifting simulation in rats on changes in the frequency domain of heart rate variability were compared. In the early postoperative period, the low-frequency component increases, and the high-frequency component decreases. The VLF range also increased.

[INFLUENCE OF BEVERAGES ON THE DENTOALVEOLAR SYSTEM (EXPERIMENTAL STUDY)].

The aim of the study was to determine the influence of various drinking liquids on an the dentoalveolar system in rats. The study was carried out on 25 white male rats from the nursery of Krolinfo branch of the Moscow region which were kept in standard vivarium conditions. Age of rats-3-6 months, weight - 150-200 grams.

[Evaluation of the effect of sodium hypochlorite gel on composite bonding strength to enamel of primary teeth after salivary contamination: in vitro study].

Objective: The study investigated the effect of 2%s odium hypochlorite gel application after post-etching salivary contamination on composite bonding strength to primary teeth enamel.

Material And Methods: The sample consisted of 79 primary human teeth that were extracted no more than one month ago. The sample was randomly divided into four groups: (1) the control group (A) comprised 10 primary teeth, and composites were applied in the traditional manner without any salivary contamination; (2) the second group (B) consisted of 23 primary teeth in which salivary contamination was conducted after etching followed by re-etching and follow-up; (3) the third group (C) comprised 23 primary teeth in which saliva contamination was done after etching followed by washing, drying, and follow-up; and (4) the fourth group (D) comprised 23 primary teeth, in which salivary contamination was conducted after etching followed by application of sodium hypochlorite gel and follow-up.

[Efficacy of vacuum-gradient therapy in reducing orthodontic treatment time].

Unlabelled: The purpose of the study was to evaluate the efficacy of vacuum-gradient therapy in reducing orthodontic treatment time.

Materials And Methods: The study comprised 57 patients aged from 25 to 35 years (mean age 28.8±4.

[Oral cavity microbiocenosis assessment on the basis of bacterial endotoxin and plasmalogens in a saliva by method GAS-liquid chromatography-mass spectrometry.].

The concentration of plasmalogen bacterial and endotoxin levels in the saliva of patients with different severity of periodontal disease, injury prosthetic bed and with various degrees of the oral cavity microbiocenosis violations was studied. Determination of the presence of the pathological process was carried out clinically, according to the condition of periodontal tissues. The degree of microbiological disorders was assessed by the quantitative ratio of the types of microorganisms isolated from the smear taken from the gingival groove.

[An in vitro study of the stretching time-associated force loss generated by elastomeric chains and NiTi closed coil springs].

Unlabelled: The purpose of the study was to evaluate the force loss of orthodontic elastomeric chains with NiTi closed spring in artificial saliva by time.

Methods: The study samples comprised 40 elastomeric chains (20 Dentaurum, and 20 G & H) and 15 NiTi closed spring (GAC). The elastomeric chains were submerged in 36,6 ºC artificial saliva and stretched on the instrument of resin plates at a distance of 30 mm.

[Comparative clinical and laboratory study of the force loss generated by NiTi closed coil springs].

The purpose in this study was to compare the force decay of laboratory and clinical NiTi closed coil springs. Specimens were 30 NiTi coil springs (clinical) and 15 (laboratory in artificial saliva 36.6 ºC) springs were tested by dynamometer to evaluate force loos at different intervals: 1, 2 and 3 months of use.

[Methods of restoring the integrity the lower jaw in children with post-resection defects'].

The review deals with modern concepts on surgical treatment of post-resection defects of the mandible in children. The analysis of domestic and foreign literature. Describes the various classification of tumor lesions in children and post-resection defects of the mandible.

[The morphological parameters of the dental arches in children with unilateral complete cleft lip and palate].

The size and proportions of dentitions and relationships between longitudinal, transverse, and vertical parameters of the upper and lower dentitions and palatine processes were examined in 42 children (22 girls and 20 boys), aged 5-6 years, with unilateral complete labiopalatine clefts before uranoplasty. Analysis of correlations in the findings was carried out and 12 reliable coefficients of correlations obtained.

[Comparative evaluation of the results of various methods of scleroplasty in progressive myopia].

Six methods of scleroplasty are compared. A total of 476 operations on 423 eyes of 224 patients were carried out. The advantages of the technique suggested by the authors--fortification of the eyeball posterior pole with an auto-cartilage plate of the concha of the auricle 15 X 10 X 1 (1.

[Comparative characteristics of masticatory muscle tonus in children with orthognathic and prognathic deep bites before and after orthodontic treatment].

In 99 orthognathic children 7 to 15 years and 83 age-matched children with deep prognathism the masticatory muscles stiffness was measured in a relatively resting state and maximal voluntary contraction. In children with anomalous occlusion the stiffness of relaxed muscles was increased as related to normal values, and their contractility was reduced. After the orthodontic treatment the indices of muscular tonus improved.