title: [Gingivitis and periodontitis. I. Histological aspects, epidemiological data, aggravation and resistance reduction factors].
mesh_terms: D005881:Gingiva / Q000648:ultrastructure; D005891:Gingivitis / Q000473:pathology*; D006801:Humans; D010518:Periodontitis / Q000473:pathology*; D010519:Periodontium / Q000648:ultrastructure
vernacular_title: Gingivitis en parodontitis. I. Histologische aspecten, epidemiologische gegevens, aanvalsverhogende en weerstandsverlagende factoren.