title: Problems with report on periodontics.
mesh_terms: D001419:Bacteria / Q000302:isolation & purification; D003773:Dental Plaque / Q000382:microbiology / Q000469:parasitology; D004747:Entamoeba / Q000302:isolation & purification / Q000502:physiology*; D006801:Humans; D010510:Periodontal Diseases / Q000382:microbiology / Q000469:parasitology*