[Significance of exogenous factors for origination of diseases of oral cavity mucosa and periodontium among pupils].
D002031:Bulgaria; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009061:Mouth Mucosa / Q000473:pathology*; D010510:Periodontal Diseases / Q000209:etiology*
Znachenie na ekzogennite faktori za poiavata na zaboliavaniia na ligavitsata na ustnata kukhina i parodonta sred uchenitsite.