Michael Edgar, DDSc, PhD, FDS, RCS (Eng) is Emeritus Professor of Dental Science at the University of Liverpool. Saliva, foods and dental caries
Simon M Roland, BDS (Lond) LDSRCS (Eng). Dental Advisor to Oral Healthcare in Action, General Dental Practitioner St John's Wood London. Saliva - its role in maintaining oral health and preventing dental disease