title: [Electron microscopic study of the periodontal tissues in progressive periodontal disease. I. Alteration of junctional epithelium].
mesh_terms: D000818:Animals; D003773:Dental Plaque / Q000150:complications; D004037:Diet, Cariogenic; D004846:Epithelial Attachment / Q000648:ultrastructure*; D010510:Periodontal Diseases / Q000209:etiology / Q000473:pathology*; D010519:Periodontium / Q000648:ultrastructure*; D051381:Rats; D013395:Sucrose / Q000009:adverse effects
chemical_list: D013395:Sucrose