title: Microscopic evaluation of root surface associations in vivo.
mesh_terms: D000293:Adolescent; D000328:Adult; D010520:Aggressive Periodontitis / Q000382:microbiology*; D001419:Bacteria / Q000166:cytology / Q000648:ultrastructure; D018407:Bacterial Physiological Phenomena; D003739:Dental Cementum / Q000382:microbiology / Q000648:ultrastructure; D006801:Humans; D008854:Microscopy, Electron; D010510:Periodontal Diseases / Q000382:microbiology*; D010518:Periodontitis / Q000382:microbiology*; D014092:Tooth Root / Q000382:microbiology* / Q000648:ultrastructure