Department of Oral Medicine and Periodontology organized a farewell ceremony for Dr. Do Thu Hang from Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City and Dr. Anandina Irmagita Soegyanto from Faculty of Dentistry, University of Indonesia successfully completing a short-term staff mobility program with financial support as agreed upon International Dental Collaboration of the Mekong River Region (IDCMR) during September 1 – 30, 2015.