New portable shield prevents spread of saliva and aerosols generated during dental procedures Dental treatments are performed at close proximity to the mouths and noses of the patients, and the procedures are often related to the generation of aerosols as well as handling of oral fluids and blood. This puts dentists at a high risk of exposure to COVID-19, and other critical infectious diseases. Now, researchers from the National University of Singapore (NUS) have invented a portable tent-like shield to prevent the spread of saliva and aerosols generated during dental procedures. The Dental Droplet and Aerosol Reducing Tent (Dental DART) can be placed around the patient's head to serve as a barrier to protect dentists, nurses and patients from direct and indirect exposure to infectious diseases such COVID-19.