title: Needs and potentials for clinical research in periodontology.
mesh_terms: D000818:Animals; D001669:Biochemical Phenomena; D001671:Biochemistry; D002986:Clinical Trials as Topic; D006224:Cricetinae; D004285:Dogs; D004812:Epidemiologic Methods; D000882:Haplorhini; D006801:Humans; D010510:Periodontal Diseases / Q000188:drug therapy / Q000209:etiology / Q000276:immunology / Q000382:microbiology; D010517:Periodontics; D051381:Rats; D012106:Research