Dr. Twetman is a specialised paediatric dentist and professor of Cariology at the Faculty of Health and Medical Sciences, University of Copenhagen, Denmark. He graduated from the dental school in 1974 and holds the PhD and Odont. Dr. degree from Karolinska Institutet, Stockholm, Sweden.
His research focus is fluoride and microbial aspects on oral ecology and caries prevention in childhood with a focus on clinical trials.
Dr. Twetman has authored over 200 peer-reviewed papers and was awarded the IADR Distinguished Scientist Award in 2010 and the EW Borrow Memorial Award in 2011.