Efek Kitosan dibandingkan Deksametason pada diferensiasi Osteogenik sel punca pulpa gigi : ditinjau dari aktivitas enzim Alkaline Phosphatase = The effects of Chitosan compared to Dexamethasone in Osteogenic differentiation of dental pulp stem cells : analysed by Alkaline Phosphatase activity (Fakultas Kedokteran Gigi Universitas Indonesia, 2012)