title: [Current results of studies on the causes of periodontal diseases and their prevention in the opinion of experts from the socialist states].
mesh_terms: D002031:Bulgaria; D003604:Czechoslovakia; D005859:Germany, East; D006801:Humans; D006814:Hungary; D010510:Periodontal Diseases / Q000209:etiology* / Q000517:prevention & control; D011044:Poland; D014586:USSR
vernacular_title: Dzisiejszy stan badań nad przyczynami chorób przyzebia i ich zapobieganiem w ocenie ekspertów państw socjalistycznych.