[Effects of copper melting production on the composition and characteristics of oral fluid]. / Vliianie neblagopriiatnykh faktorov medeplavil'nogo proizvodstva na sostav i svoistva rotovoi zhidkosti.

Industrial air of copper-melting factory in Almalyk contains a considerable quantity of copper and antioxidant elements (selen and zinc) in combination with poor quantity of prooxidants (ferrum, cobolt, chrome). The workers saliva contains increased concentrations of selen and zinc resultant in lowering intensity of free radical oxidation of lipids in the saliva and subnormal activity of antioxidant system's enzymes. Increased hydroperoxides quantity was discovered in saliva of patients with partial secondary adentia accompanied by hyper activity of antioxidant system's enzymes.

[The morphological characteristics of the interaction of parietal microflora with the mucosal epitheliocytes of the alveolar crest in patients with partially missing teeth]. / Morfologicheskie osobennosti vzaimodeistviia pristenochnoi mikroflory s épiteliotsitami slizistoi obolochki al'veoliarnogo grebnia u bol'nykh s chastnym otsutstviem zubov.

Microbiopsy specimens of the alveolar ridge obtained at the sites of missing teeth from patients and similar autopsy specimens from those dead without apparent oral and gastrointestinal diseases were examined electron microscopically in order to elucidate the interactions between the oral mucosa parietal microflora and epitheliocytes. Cocci-like microorganisms and microorganisms resembling Candida-like yeast by their ultrastructure were as a rule seen on the surface of the horny layer. The results evidence that loss of teeth involves the appearance of quite a number of various parietal bacteria in the oral mucosa, inducing characteristic changes in the pricky and horny layer cells. Intracellular location of the bacteria also contributes here. All this should be borne in mind when choosing the denture design. Antibacterial therapy appears to be advisable before fitting the patients with dentures.