Dr Gillam is a Clinical Consultant to BioMin Technologies Limited and is also a Clinical Reader at the Barts London School of Medicine and Dentistry (QMUL). He has considerable expertise concerning dentine hypersensitivity and periodontal disease and is internationally regarded on these subjects. David was also a co-inventor of Ultradex Recalcifying and Whitening – a nano hydroxyapatite toothpaste and Oral Rinse with Professor Hill and colleagues. He previously published one of the first papers on the occlusion of dentine tubules using bioactive glass. Besides his work in academia, David has many years of industry experience as well as having conducted laboratory and clinical research with leading oral health companies.