EMS - Electro Medical Systems: the swiss dental prophylaxis company ! Visit our website: http://www.ems-dental.com to learn more about AIR-FLOW and Piezon. EMS is the inventor of AIR-FLOW method for air polishing and Piezon method for ultrasound scaling. Discover the latest innovation in polishing powders for subgingival and supragingival applications as well as how to maintain your EMS products and enhance their lifetime with maintenance tutorials. EMS dentistry products: Airflow Prophylaxis Master, Airflow One, Air-Flow Master, Air-Flow Master Piezon, Air-Flow handy, Piezon Master 700, Piezon 250, Air-Flow Powder PLUS, Air-Flow Powder Perio, Piezon Swiss Instruments.