[The possibility of enamel remineralization in adults].

The purpose of the study is comparative evaluation of modern mineralizing means and determine the effectiveness of dental caries prevention in adults. The study was conducted on 210 patients between the ages of 35 to 55 years old, divided into 6 equal groups with different means and modes of prevention (gel Tooth Mousse GC, Japan; gel Apaden-Pro Sangi, Japan; gel Fluokal Septodont, France). For dynamic monitoring and evaluating the effectiveness of prevention interventions used CPU index, OHI-S, the evaluation of cariesresistance by Nedoseko, acid biopsy of enamel.

[Comparative in vitro evaluation of modern glass ionomer cements for adhesion strength and fluoride release].

The study proved similar adhesion strength and fluoride release level in aqueous extracts of glass ionomer cements Cemion (VladMiVa, Russia), Glassin Rest (Omega-Dent, Russia), Cemfil 10 (StomaDent, Russia) and Fuji VIII (GC Corporation, Japan). Despite of close concentrations of fluoride in glasses, the rate of fluoride release in water from calcium and calcium-barium glasses is much higher than that of strontium glasses.

[Harmonic imaging analysis for assessment of morphological changes in mini-pig alveolar bone by normal and increased functional load].

The aim of the study was to reveal the mastication forces effect on the microstructure of mandible bone tissue of mini-pigs by Fouirier harmonic imaging analysis of bone sections images of back scattered electrons and assessment of calcium and phosphorous distribution maps obtained by roentgenofluorescence technique. The results showed that by higher functional loads not only the total content of mineral elements in the bone matrix increased but also the of the low-frequency harmonics in the image spectrum indicating structural heterogeneity decrease in bone mineralization.

[Influence of calcium and phosphate ions on the adsorption rate of alkaline phosphatase and some of serum proteins on the hydroxyapatite].

Calcium ions accelerate selective adsorption of AP on HAP and phosphate ions inhibit it. Since the biological function of AP is in the synthesis of phosphate ions from organic phosphates, enzyme activity contributes to its adsorption on mineralized tissues HAP, which can be associated with the peculiarities of the action of the enzyme adsorbed compared with dissolved. Apparently, the selective adsorption of enzymes and signaling molecules in the extracellular matrix to produce the microenvironment necessary for cell differentiation and function of tissue.

[Use of Fourier analysis in hystomorphometry].

The mandible alveolar bone tissue of mini-pig was evaluated by means of radiospectral analysis. Fourier analysis of mineral content distribution in bone slices showed that loss of masticatory load leads to focal demineralization. With time the demineralization foci increased in amount, not in size.