Awareness, attitudes, need and demand on replacement of missing teeth among a group of partially dentate patients attending a University Dental Hospital oleh Rasika Manori Jayasinghe, Janana Perera, Vajira Jayasinghe, Indika P. Thilakumara, Sumudu Rasnayaka, Muhammad Hanafi Muhammad Shiraz, Indra Ranabahu, Sanjeewa Kularatna