User Biography : Prof Yoshitaka Hara I graduated Faculty of Dentistry, Kyushu University in 1978 and postgraduate coarse of oral pathology in Kyushu University in 1982. Then I started my research work and my carrier of periodontist. I transferred to department of Periodontology, Nagasaki University in 1989 and was elected professor in 2000. My main works are immunohistopathological studies about the relation between periodontitis and host defense system.
Biography Updated on 23 September 2012