Examples of air pollution and its consequences are given. The main sources of dust formation are described, including sand and dust storms and man-caused wastes arising from the extraction of minerals, its types, form and properties. The dispersion of dust particles is characterized, as well as the danger of particles of 0.3 to 5 μm or less to humans. It is shown that the irritating, toxic, allergic, mutagenic, carcinogenic, fibrogenic and other effects of dust depend on the physicochemical properties, particle size and surface, their content in the room air or in the working area, the duration of the action. It is noted that the efficiency of dust also depends on the individual reactivity of the person. Briefly listed are the specific and nonspecific effects of dust and the mechanism of pneumoconiosis development.
The review presents the modern concept of the oral microbiome, its species diversity, the properties of microbial associations and their effect on the immunobiological resistance of the organism, development of chronic inflammation and two leading infectious and inflammatory diseases (dental caries and periodontal diseases). There is briefly summarized information about the presence and nature of the relationship between the composition of periodontal microorganisms and concomitant somatic diseases: in atherosclerotic plaques in cardiovascular diseases, with pathology of the gastrointestinal tract, respiratory system and other organs and systems.
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