Monday, 21 Dec 2020 09:16 PM MYT Dr Intekhab Islam (left) from NUS Faculty of Dentistry demonstrates the Dental Dart for a safer dental care for Covid-19 in a clinical setting at the National University Centre For Oral Health Singapore on Dec 21, 2020. — TODAY pic Subscribe to our Telegram channel for the latest updates on news you need to know. SINGAPORE, Dec 21 — National University of Singapore (NUS) researchers have developed a portable tent-like shield that can protect dentists and nurses from infectious diseases such as Covid-19 by reducing the spread of saliva and aerosols. The Dental Dart is a clear shield with an adjustable width of between 60 and 70cm, a depth of 54cm and a height of 64cm. Placed above the head of a dental patient, it limits the spread of aerosols onto nearby surfaces and uses a vacuum system to suck away contaminated air.