African Research Journal of Education and Social Sciences, 5(1), 2018 Authors: Emma Nordlund, DDS, Department of Dental Medicine, Division of Periodontology, Karolinska Institutet. Tove Zander, DDS, Department of Dental Medicine, Division of Periodontology, Karolinska Institutet Mesfin Tessma, MD, MPH, Medical Statistics Unit, Learning, Informatics Management and Ethics (LIME), Karolinska Institutet Patricia De Palma, DDS, PhD,…