[Dental surfaces in workers exposed to fluorides]. / Badania powierzchni zebów u pracowników narazonych na dzialanie zwiazków fluoru.

Imprint preparations were taken by Eifinger's method from the labial surfaces of upper incisors from 65 workers working at least since 10 years at the production of phosphate fertilizers, and from 33 subjects without occupational exposure to any industrial harmful agents, at least in the last 10 years. Differences were noted in the dental imprints in subjects exposed to fluorides in relation to controls in microscopic examinations.

[Micromorphology of dentine in rats with chronic exposure to ammonium fluoride]. / Mikromorfologia zebiny siekaczy szczurów przewlekle narazonych na dzialanie fluorku amonowego.

Wistar rats were exposed chronically to ammonium fluoride in a toxicological chamber where the concentration of fluoride ions was 0.0016 mg/m3 of air. The exposure lasted 6 hours daily five times weekly. The animals were sacrificed after 3.6 and 9 months of the experiment. Histological preparations were made from upper incisors with surrounding tissues. Microscopic examination demonstrated striation of dentine in the teeth, of these animals, which was due to development of decalcification bands. This type of changes was observed also by other authors and it is regarded as a characteristic feature of dentine damage by fluorine compounds.

[The influence of long-term utilization of some herbicides on oral cavity tissues of white rats]. / Wplyw przewleklego stosowania niektórych srodków chwastobójczych na tkanki jamy ustnej szczurów bialych.

Three mixtures of herbicides have been administered to white rats of Wistar strain by means of stomach tube. After 9 months of studies laboratory examinations were carried out in these animals namely analysis of urine, peripheral blood, bone marrow smears and segments of parotid glands and cheek's mucous membrane were uptaken to histopathological examinations. Morphological changes whose intensification didn't depend on the dose and type of preparation have been found in the glands. These changes were of non-specific character--similar changes were also present in the glands in rats in the course of poisoning by other toxic agents. Vacuolar changes whose intensification was increasing with the exposure time have been observed in the cells of mucous membrane epithelium.

[Evaluation of the effect of the work environment on the state of the oral cavity]. / Ocena wplywu srodowiska pracy na stan narzadu zucia.

2439 men and employed in 4 industrial plants of Szczecin area had their masticatory system examined. Onto the cards prepared for electronic data processing the information has been written on: oral cavity caries (IMF), oral mucosa membrane, periodontium, parafunction and T.M.J. dysfunction. The main exposure factors of those plants have been determined, namely: welding gas, aromatic hydrocarbons, fluorine compounds, and copper dusts. The IMF values, oral hygiene, periodontal diseases as well as the TMJ-dysfunction in the test workers have been found to be approximately similar to the relevant values of other populations and to vary with sex, age or poor hygienic conditions. On the other hand, the prevalence of oral leukoplakia and parafunction seems to be dependent on the working environment.