Primary stage mouth cancer such as oral leukopenia can be treated effectively without surgery through the laser method. It was opined by the dental sciences, expert doctors in a two day national symposium organized by the Institute of Medical Sciences, B. H.U on Saturday. Dentists across the country are participating in the symposium. It focuses on dental diseases and treatment medhods. Elaborate discussions would be shared during two days ongoing symposium. It has been organized by the Dental surgery department of the Trouma center of BHU. The function was inaugurated by the national president of the Indian Dental Medical Council, Prof D Majumdar