Professional interest has developed concerning dentally produced aerosols and the potential for disease transmission to clinicians and patients. Aerosol is created when high-powered devices need compressed air and water to work effectively . Most procedures performed by the dental team have the potential for creating contaminated aerosols and splatter. GREELOY External Dental Clinic Oral Aerosol Suction Unit Aerosols are tiny particles or droplets which remain suspended in air. These aerosols represent an infection hazard due to their gross contamination with microorganisms and blood. A fourfold increase of airborne bacteria has been observed in areas where aerosol producing equipment was used. Aerosols can float in air for considerable time before being inhaled by dental staff and other patients. There is some evidence for greater prevalence of respiratory diseases and elevated antibody levels to Legionella pneumophila in dental workers. Oral bacteria have been detected two meters from the procedure field, indicating the existence of aerosolized oral bacteria in dental practice. Numerous airborne particles derived from blood, saliva, tooth debris, dental plaque, calculus and restorative material are produced by an ultrasonic scaler when used in combination with water spray. Bacterial diseases, viral infections and other skin infections are cause by the microorganisms which were isolated in dental aerosols. Incresed use of ultrasonic scalers and turbine hand pieces is responsible for decreased air quality in the dental office due to increased aerosol contamination. Reducing the aerosol production, microbial load in the water tubing, container will reduce the chances of cross-contamination in the dental surgery. It has been shown that pre-procedural use of an antiseptic mouth rinse significantly reduced the level of viable bacteria in the back spray derived from an air turbine hand-piece. The purpose of the present study was to determine the microbial atmospheric contamination during initial periodontal treatment using a modern and at present widely used piezoelectric scaler and to evaluate the efficacy of two commercially available mouth rinses (0.2% Chlorhexidine mouth rinse and Listerine) in reducing bacterial contamination when used as a pre-procedural rinse, with and without high volume evacuation (Oral Aerosol Suction Unit). See more: https://www.dentalmeet.com/2020/04/2020-new-coxo-sc-v102-extra-oral-vaccum.html