title: Evidence-based periodontology, systematic reviews and research quality.
authors.affiliation: Department of Periodontology, Eastman Dental Institute for Oral Health Care Sciences, University College London, UK.
authors.forename: Ian
authors.initials: I
authors.lastname: Needleman
authors.forename: David R
authors.initials: DR
authors.lastname: Moles
authors.forename: Helen
authors.initials: H
authors.lastname: Worthington
mesh_terms: D015986:Confounding Factors, Epidemiologic; D018865:Dental Research / Q000592:standards; D019317:Evidence-Based Medicine; D006801:Humans; D010517:Periodontics; D017594:Publication Bias; D016032:Randomized Controlled Trials as Topic / Q000592:standards; D012107:Research Design; D012196:Review Literature as Topic; D015983:Selection Bias