Sydney Dental Hospital (SDH) is a hospital in Sydney, New South Wales, Australia. It is situated between Chalmers Street and Elizabeth Street opposite the entrance to Central Station. SDH provides specialist treatment to people referred statewide for Paediatric Dentistry, Orthodontics, Periodontics, Oral Surgery and Diagnostic Imaging, Prosthodontics, Endodontics, Oral Pathology, Oral and Maxillo-facial Surgery and Implantology services.