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Occurrence of non-carious enamelopathies in the children living in the vicinity of the Coal Mine Bogdanka.

The main aim of this study was to examine the incidence of enamelopathies among children from the Bogdanka region. Altogether, there were examined 273 people (aged 7-14) who live in the neigbourhood of the mainfield (group I). The controlled group consisted of 188 children of the same age who lived in the areas free of chemical pollution (group II). The appearing of distempers in the structure of the enamel was marked among 62 people, the majority of whom were the boys (39), girls--23. When it comes to the placement of these changes, they were mostly located in the labial surface of incisors of the maxilla, less frequently in the canines and premolar teeth. On the other hand, just particular changes were spotted in the mandibula. The changes mentioned above were characterized by the white turbidity, were well-limited and did not show the symmetry. In none of the cases the decay appeared as an additional factor. The clinical researches were enriched by the survey research aiming to estimate the existence and the level of discomfort among children suffering from enamelopathies.