The Quality of the Evidence According to GRADE Is Predominantly Low or Very Low in Oral Health Systematic Reviews

• Nikolaos Pandis ,

  * E-mail: npandis@yahoo.com

  Affiliations Department of Hygiene and Epidemiology, Medical School, University of Ioannina, Ioannina, Greece, Department of Orthodontics and Dentofacial Orthopedics, Dental SChool/Medical Faculty, University of Bern, Bern, Switzerland

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• Padhraig S. Fleming,

  Affiliation Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Turner St., London E1 2 AD, United Kingdom

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• Helen Worthington,

  Affiliation Cochrane Oral Health Group, School of Dentistry, The University of Manchester, Coupland 3 Building, Oxford Road, Manchester, M13 9PL, United Kingdom

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• Georgia Salanti

  Affiliation Department of Hygiene and Epidemiology, Medical School, University of Ioannina, Ioannina, Greece

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