Aerosols produced during dental procedures can be generated by which devices?

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Aerosols are fine droplets that can become suspended in the air when a device creates a spray. A high-speed handpiece uses an air-driven turbine with water coolant; the combination of fast rotation and water spray generates a fine mist that can linger in the operatory air. The air-water syringe intentionally delivers a spray of air and water, producing droplets that form an aerosol plume. An ultrasonic scaler vibrates at high frequency and uses water coolant as well; the vibrations plus the water mist create aerosolized particles. Since each of these devices can produce sprays that disperse as aerosols, all of them can generate aerosols. This is why infection control measures like high-volume suction, proper PPE, barriers, and ventilation are emphasized during procedures using any of these tools.